kolibri-libc:

Move to folder with tcc. Part 1

git-svn-id: svn://kolibrios.org@8793 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
turbocat
2021-06-10 14:37:44 +00:00
parent e4379d9ea4
commit b5b499b8c8
186 changed files with 0 additions and 0 deletions

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ifndef GCC
GCC=kos32-gcc
endif
KPACK=kpack
FASM=fasm
CFLAGS = -c -nostdinc -I../include -DGNUC -D_BUILD_LIBC -fno-common -Os -fno-builtin -fno-leading-underscore -fno-pie
SRC=libc.c
LIB=../lib/libc.obj
all:
$(MAKE) -C ../linuxtools/src
mkdir -p exports ../lib
../linuxtools/ExportGen symbols.txt exports/exports.c
$(FASM) crt/crt0.asm ../lib/crt0.o
$(GCC) $(CFLAGS) $(SRC) -o $(LIB)
$(KPACK) $(LIB)
../linuxtools/LoaderGen symbols.txt ../loader
../linuxtools/LoaderBuild ../loader
$(MAKE) -C libtcc
rm -rf exports
install:
cp -f ../lib/libc.obj ~/.kex/root/RD/1/LIB
clean:
rm ../lib/*

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if tup.getconfig("NO_GCC") ~= "" then return end
HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../../../../" or tup.getconfig("HELPERDIR")
tup.include(HELPERDIR .. "/use_gcc.lua")
CFLAGS = " -c -w -nostdinc -DGNUC -D_BUILD_LIBC -Os -fno-common -fno-builtin -fno-leading-underscore -fno-pie"
INCLUDES = " -I../include"
tup.rule("../linuxtools/src/ExportGen.c", "gcc %f -o %o" , "../linuxtools/ExportGen")
tup.rule("../linuxtools/src/LoaderGen.c", "gcc %f -o %o" , "../linuxtools/LoaderGen")
tup.rule({"symbols.txt",extra_inputs = {"../linuxtools/ExportGen"}}, "../linuxtools/ExportGen %f %o" , "exports/exports.c")
tup.rule({"libc.c",extra_inputs = {"exports/exports.c"}} , "kos32-gcc" .. CFLAGS .. INCLUDES .. " -o %o %f " .. tup.getconfig("KPACK_CMD"), "libc.obj")

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format ELF
section '.text' executable
public start
public start as '_start'
;extrn mf_init
extrn main
include '../../../../../proc32.inc'
include '../../../../../macros.inc'
include '../../../../../dll.inc'
;include '../../../../../debug.inc'
;start_:
virtual at 0
db 'MENUET01' ; 1. Magic number (8 bytes)
dd 0x01 ; 2. Version of executable file
dd start ; 3. Start address
imgsz dd 0x0 ; 4. Size of image
dd 0x100000 ; 5. Size of needed memory
dd 0x100000 ; 6. Pointer to stack
hparams dd 0x0 ; 7. Pointer to program arguments
hpath dd 0x0 ; 8. Pointer to program path
end virtual
start:
;DEBUGF 'Start programm\n'
;init heap of memory
mov eax,68
mov ebx,11
int 0x40
mov [argc], 0
mov eax, [hparams]
test eax, eax
jz .without_path
mov eax, path
cmp word ptr eax, 32fh ; '/#3' UTF8
jne .without_path
mov word ptr eax, 12fh ; '/#1' fix to CP866
.without_path:
mov esi, eax
call push_param
; retrieving parameters
mov esi, params
xor edx, edx ; dl - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(1) <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(0)
; dh - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
mov ecx, 1 ; cl = 1
; ch = 0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
.parse:
lodsb
test al, al
jz .run
test dl, dl
jnz .findendparam
;{<7B><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp al, ' '
jz .parse ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov dl, cl ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp al, '"'
jz @f ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov dh, ch ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
dec esi
call push_param
inc esi
jmp .parse
@@:
mov dh, cl ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
call push_param ;<3B><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
jmp .parse ;<3B><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>}
.findendparam:
test dh, dh
jz @f ; <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp al, '"'
jz .clear
jmp .parse
@@:
cmp al, ' '
jnz .parse
.clear:
lea ebx, [esi - 1]
mov [ebx], ch
mov dl, ch
jmp .parse
.run:
call load_imports
push argv
push [argc]
call main
.exit:
xor eax,eax
dec eax
int 0x40
dd -1
.crash:
jmp .exit
;============================
push_param:
;============================
;parameters
; esi - pointer
;description
; procedure increase argc
; and add pointer to array argv
; procedure changes ebx
mov ebx, [argc]
cmp ebx, max_parameters
jae .dont_add
mov [argv+4*ebx], esi
inc [argc]
.dont_add:
ret
;==============================
;==============================
load_imports:
;==============================
;parameters
; none
;description
; imports must be located at end of image (but before BSS sections)
; the address of end of imports (next byte after imports) is located in imgsz
; look at each import from that address up to illegal import
; legal import is such that:
; first pointer points to procedure name
; and is smaller than imgsz
; second pointer points lo library name, starting with 0x55, 0xAA
; and is smaller than imgsz
; each library should be initialized as appropriate, once
; so as library is initialized, its name will be replaced 0x00
mov ebx, [imgsz] ; byte after imports
.handle_next_import:
sub ebx, 4 ; ebx = pointer to pointer to library name
mov esi, dword[ebx] ; esi = pointer to library name
push ebx
push esi
call load_library ; eax = pointer to library exports
pop esi
pop ebx
test eax, eax
jz .done
sub ebx, 4 ; ebx = pointer to pointer to symbol name
push ebx
stdcall dll.GetProcAddress, eax, dword[ebx]
pop ebx
test eax, eax
jz .fail
mov dword[ebx], eax
jmp .handle_next_import
.done:
;DEBUGF 1, "Library: %s not loaded!\n", esi
;mcall -1
ret
.fail:
ret
;==============================
;==============================
load_library:
;==============================
;parameters
; ebx: library name address
;description
; each library should be initialized as appropriate, once
; so as library is initialized, its name will be replaced 0x00
; and 4 next bytes will be set to address of library
; first two bytes of library name must be 0x55, 0xAA (is like a magic)
cld ; move esi further, not back
cmp esi, [imgsz]
ja .fail
lodsb ; al = first byte of library name
cmp al, 0x55
jne .fail
lodsb ; al = second byte of library name
cmp al, 0xAA
jne .fail
lodsb ; al = third byte of library name (0x00 if the library is already loaded)
test al, al
jnz .load
lodsd ; if we here, then third byte is 0x00 => address of library is in next 4 bytes
; now eax contains address of library
ret
.load:
dec esi ; we checked on 0 before, let's go back
mov eax, 68
mov ebx, 19
mov ecx, esi
int 0x40 ; eax = address of exports
mov byte[esi], 0 ; library is loaded, let's place 0 in first byte of name
mov [esi + 1], eax ; now next 4 bytes of library name are replaced by address of library
; call lib_init
stdcall dll.GetProcAddress, eax, lib_init_str ; eax = address of lib_init
test eax, eax
jz .ret
stdcall dll.Init, eax
.ret:
mov eax, [esi + 1] ; put address of library into eax
ret
.fail:
mov eax, 0
ret
;==============================
lib_init_str db 'lib_init', 0
public argc as '__argc'
public params as '__argv'
public path as '__path'
section '.bss'
buf_len = 0x400
max_parameters=0x20
argc rd 1
argv rd max_parameters
path rb buf_len
params rb buf_len

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@@ -0,0 +1,21 @@
#include <ctype.h>
unsigned short __is[129] = {
0, /* EOF */
0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
0x004, 0x104, 0x104, 0x104, 0x104, 0x104, 0x004, 0x004,
0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
0x140, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0,
0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0,
0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
0x459, 0x459, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0,
0x0D0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
0x253, 0x253, 0x253, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x0D0,
0x0D0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
0x073, 0x073, 0x073, 0x0D0, 0x0D0, 0x0D0, 0x0D0, 0x004
};

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@@ -0,0 +1,7 @@
#include <ctype.h>
int tolower(int c)
{
if (isupper(c)) return c | 32;
return c;
}

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@@ -0,0 +1,7 @@
#include <ctype.h>
int toupper(int c)
{
if (islower(c)) return c & 0x5f;
return c;
}

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@@ -0,0 +1,145 @@
#include "ctype/is.c"
#include "ctype/tolower.c"
#include "ctype/toupper.c"
#include "sys/rewinddir.c"
#include "sys/readdir.c"
#include "sys/seekdir.c"
#include "sys/opendir.c"
#include "sys/telldir.c"
#include "sys/closedir.c"
#include "sys/dir.c"
#include "sys/socket.c"
#include "stdio/clearerr.c"
#include "stdio/gets.c"
#include "stdio/setbuf.c"
#include "stdio/fgetc.c"
#include "stdio/fopen.c"
#include "stdio/format_print.c"
#include "stdio/vprintf.c"
#include "stdio/feof.c"
#include "stdio/fwrite.c"
#include "stdio/fread.c"
#include "stdio/fseek.c"
#include "stdio/fgetpos.c"
#include "stdio/fclose.c"
#include "stdio/snprintf.c"
#include "stdio/rename.c"
#include "stdio/getchar.c"
#include "stdio/remove.c"
#include "stdio/ferror.c"
#include "stdio/tmpfile.c"
#include "stdio/fputs.c"
#include "stdio/fputc.c"
#include "stdio/fgets.c"
#include "stdio/fflush.c"
#include "stdio/format_scan.c"
#include "stdio/printf.c"
#include "stdio/fscanf.c"
#include "stdio/debug_printf.c"
#include "stdio/fsetpos.c"
#include "stdio/setvbuf.c"
#include "stdio/sscanf.c"
#include "stdio/scanf.c"
#include "stdio/freopen.c"
#include "stdio/puts.c"
#include "stdio/sprintf.c"
#include "stdio/vsnprintf.c"
#include "stdio/conio.c"
#include "stdio/perror.c"
#include "stdio/ftell.c"
#include "stdio/tmpnam.c"
#include "stdio/rewind.c"
#include "stdio/vfprintf.c"
#include "stdio/fprintf.c"
#include "stdio/ungetc.c"
#include "string/strerror.c"
#include "string/strxfrm.c"
#include "string/strrchr.c"
#include "string/strcspn.c"
#include "string/strlen.c"
#include "string/strrev.c"
#include "string/memccpy.c"
#include "string/strchr.c"
#include "string/strcoll.c"
#include "string/strpbrk.c"
#include "string/strstr.c"
#include "string/memcmp.c"
#include "string/strspn.c"
#include "string/strcpy.c"
#include "string/strncpy.c"
#include "string/strdup.c"
#include "string/strcat.c"
#include "string/memchr.c"
#include "string/strncmp.c"
#include "string/strncat.c"
#include "string/strtok.c"
#include "string/strcmp.c"
#include "string/memset.c"
#include "string/memcpy.c"
#include "string/memmove.c"
#include "stdlib/calloc.c"
#include "stdlib/lldiv.c"
#include "stdlib/malloc.c"
#include "stdlib/atoll.c"
#include "stdlib/free.c"
#include "stdlib/llabs.c"
#include "stdlib/exit.c"
#include "stdlib/atoi.c"
#include "stdlib/labs.c"
#include "stdlib/realloc.c"
#include "stdlib/ldiv.c"
#include "stdlib/abs.c"
#include "stdlib/div.c"
#include "stdlib/atol.c"
#include "stdlib/itoa.c"
#include "stdlib/strtol.c"
#include "stdlib/rand.c"
#include "math/acosh.c"
#include "math/asinh.c"
#include "math/atanh.c"
#include "math/cosh.c"
#include "math/frexp.c"
#include "math/hypot.c"
#include "math/ldexp.c"
#include "math/sinh.c"
#include "math/tanh.c"
#include "time/difftime.c"
#include "time/localtime.c"
#include "time/mktime.c"
#include "time/time.c"
#include "time/asctime.c"
__asm__(
".include \"math/acos.s\"\n\t"
".include \"math/asin.s\"\n\t"
".include \"math/atan.s\"\n\t"
".include \"math/atan2.s\"\n\t"
".include \"math/ceil.s\"\n\t"
".include \"math/cos.s\"\n\t"
".include \"math/exp.s\"\n\t"
".include \"math/fabs.s\"\n\t"
".include \"math/floor.s\"\n\t"
".include \"math/fmod.s\"\n\t"
".include \"math/log.s\"\n\t"
".include \"math/modf.s\"\n\t"
".include \"math/modfl.s\"\n\t"
".include \"math/pow.s\"\n\t"
".include \"math/pow2.s\"\n\t"
".include \"math/pow10.s\"\n\t"
".include \"math/sqrt.s\"\n\t"
);
__asm__(
".include \"setjmp/longjmp.s\"\n\t"
".include \"setjmp/setjmp.s\""
);
#include "libtcc/libtcc1.c"
#include "stdlib/___chkstk_ms.c"
#include "exports/exports.c"

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KTCC_DIR=../../../../ktcc/trunk
KTCC=$(KTCC_DIR)/bin/kos32-tcc
FASM=fasm
OBJ= memcpy.o memmove.o memset.o libtcc1.o
all: $(OBJ)
ar -crs ../../lib/libtcc.a $(OBJ)
rm -f *.o
%.o : %.c
$(KTCC) -c $< -o $@
%.o : %.asm
$(FASM) $< $@

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@@ -0,0 +1,763 @@
/* TCC runtime library.
Parts of this code are (c) 2002 Fabrice Bellard
Copyright (C) 1987, 1988, 1992, 1994, 1995 Free Software Foundation, Inc.
This file is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
In addition to the permissions in the GNU General Public License, the
Free Software Foundation gives you unlimited permission to link the
compiled version of this file into combinations with other programs,
and to distribute those combinations without any restriction coming
from the use of this file. (The General Public License restrictions
do apply in other respects; for example, they cover modification of
the file, and distribution when not linked into a combine
executable.)
This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
//#include <stdint.h>
#define TCC_TARGET_I386
#define W_TYPE_SIZE 32
#define BITS_PER_UNIT 8
typedef int Wtype;
typedef unsigned int UWtype;
typedef unsigned int USItype;
typedef long long DWtype;
typedef unsigned long long UDWtype;
struct DWstruct {
Wtype low, high;
};
typedef union
{
struct DWstruct s;
DWtype ll;
} DWunion;
typedef long double XFtype;
#define WORD_SIZE (sizeof (Wtype) * BITS_PER_UNIT)
#define HIGH_WORD_COEFF (((UDWtype) 1) << WORD_SIZE)
/* the following deal with IEEE single-precision numbers */
#define EXCESS 126
#define SIGNBIT 0x80000000
#define HIDDEN (1 << 23)
#define SIGN(fp) ((fp) & SIGNBIT)
#define EXP(fp) (((fp) >> 23) & 0xFF)
#define MANT(fp) (((fp) & 0x7FFFFF) | HIDDEN)
#define PACK(s,e,m) ((s) | ((e) << 23) | (m))
/* the following deal with IEEE double-precision numbers */
#define EXCESSD 1022
#define HIDDEND (1 << 20)
#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF)
#define SIGND(fp) ((fp.l.upper) & SIGNBIT)
#define MANTD(fp) (((((fp.l.upper) & 0xFFFFF) | HIDDEND) << 10) | \
(fp.l.lower >> 22))
#define HIDDEND_LL ((long long)1 << 52)
#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL)
#define PACKD_LL(s,e,m) (((long long)((s)+((e)<<20))<<32)|(m))
/* the following deal with x86 long double-precision numbers */
#define EXCESSLD 16382
#define EXPLD(fp) (fp.l.upper & 0x7fff)
#define SIGNLD(fp) ((fp.l.upper) & 0x8000)
/* only for x86 */
union ldouble_long {
long double ld;
struct {
unsigned long long lower;
unsigned short upper;
} l;
};
union double_long {
double d;
#if 1
struct {
unsigned int lower;
int upper;
} l;
#else
struct {
int upper;
unsigned int lower;
} l;
#endif
long long ll;
};
union float_long {
float f;
unsigned int l;
};
/* XXX: we don't support several builtin supports for now */
#if !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_ARM)
/* XXX: use gcc/tcc intrinsic ? */
#if defined(TCC_TARGET_I386)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
__asm__ ("subl %5,%1\n\tsbbl %3,%0" \
: "=r" ((USItype) (sh)), \
"=&r" ((USItype) (sl)) \
: "0" ((USItype) (ah)), \
"g" ((USItype) (bh)), \
"1" ((USItype) (al)), \
"g" ((USItype) (bl)))
#define umul_ppmm(w1, w0, u, v) \
__asm__ ("mull %3" \
: "=a" ((USItype) (w0)), \
"=d" ((USItype) (w1)) \
: "%0" ((USItype) (u)), \
"rm" ((USItype) (v)))
#define udiv_qrnnd(q, r, n1, n0, dv) \
__asm__ ("divl %4" \
: "=a" ((USItype) (q)), \
"=d" ((USItype) (r)) \
: "0" ((USItype) (n0)), \
"1" ((USItype) (n1)), \
"rm" ((USItype) (dv)))
#define count_leading_zeros(count, x) \
do { \
USItype __cbtmp; \
__asm__ ("bsrl %1,%0" \
: "=r" (__cbtmp) : "rm" ((USItype) (x))); \
(count) = __cbtmp ^ 31; \
} while (0)
#else
#error unsupported CPU type
#endif
/* most of this code is taken from libgcc2.c from gcc */
UDWtype __udivmoddi4 (UDWtype n, UDWtype d, UDWtype *rp)
{
DWunion ww;
DWunion nn, dd;
DWunion rr;
UWtype d0, d1, n0, n1, n2;
UWtype q0, q1;
UWtype b, bm;
nn.ll = n;
dd.ll = d;
d0 = dd.s.low;
d1 = dd.s.high;
n0 = nn.s.low;
n1 = nn.s.high;
#if !defined(UDIV_NEEDS_NORMALIZATION)
if (d1 == 0)
{
if (d0 > n1)
{
/* 0q = nn / 0D */
udiv_qrnnd (q0, n0, n1, n0, d0);
q1 = 0;
/* Remainder in n0. */
}
else
{
/* qq = NN / 0d */
if (d0 == 0)
d0 = 1 / d0; /* Divide intentionally by zero. */
udiv_qrnnd (q1, n1, 0, n1, d0);
udiv_qrnnd (q0, n0, n1, n0, d0);
/* Remainder in n0. */
}
if (rp != 0)
{
rr.s.low = n0;
rr.s.high = 0;
*rp = rr.ll;
}
}
#else /* UDIV_NEEDS_NORMALIZATION */
if (d1 == 0)
{
if (d0 > n1)
{
/* 0q = nn / 0D */
count_leading_zeros (bm, d0);
if (bm != 0)
{
/* Normalize, i.e. make the most significant bit of the
denominator set. */
d0 = d0 << bm;
n1 = (n1 << bm) | (n0 >> (W_TYPE_SIZE - bm));
n0 = n0 << bm;
}
udiv_qrnnd (q0, n0, n1, n0, d0);
q1 = 0;
/* Remainder in n0 >> bm. */
}
else
{
/* qq = NN / 0d */
if (d0 == 0)
d0 = 1 / d0; /* Divide intentionally by zero. */
count_leading_zeros (bm, d0);
if (bm == 0)
{
/* From (n1 >= d0) /\ (the most significant bit of d0 is set),
conclude (the most significant bit of n1 is set) /\ (the
leading quotient digit q1 = 1).
This special case is necessary, not an optimization.
(Shifts counts of W_TYPE_SIZE are undefined.) */
n1 -= d0;
q1 = 1;
}
else
{
/* Normalize. */
b = W_TYPE_SIZE - bm;
d0 = d0 << bm;
n2 = n1 >> b;
n1 = (n1 << bm) | (n0 >> b);
n0 = n0 << bm;
udiv_qrnnd (q1, n1, n2, n1, d0);
}
/* n1 != d0... */
udiv_qrnnd (q0, n0, n1, n0, d0);
/* Remainder in n0 >> bm. */
}
if (rp != 0)
{
rr.s.low = n0 >> bm;
rr.s.high = 0;
*rp = rr.ll;
}
}
#endif /* UDIV_NEEDS_NORMALIZATION */
else
{
if (d1 > n1)
{
/* 00 = nn / DD */
q0 = 0;
q1 = 0;
/* Remainder in n1n0. */
if (rp != 0)
{
rr.s.low = n0;
rr.s.high = n1;
*rp = rr.ll;
}
}
else
{
/* 0q = NN / dd */
count_leading_zeros (bm, d1);
if (bm == 0)
{
/* From (n1 >= d1) /\ (the most significant bit of d1 is set),
conclude (the most significant bit of n1 is set) /\ (the
quotient digit q0 = 0 or 1).
This special case is necessary, not an optimization. */
/* The condition on the next line takes advantage of that
n1 >= d1 (true due to program flow). */
if (n1 > d1 || n0 >= d0)
{
q0 = 1;
sub_ddmmss (n1, n0, n1, n0, d1, d0);
}
else
q0 = 0;
q1 = 0;
if (rp != 0)
{
rr.s.low = n0;
rr.s.high = n1;
*rp = rr.ll;
}
}
else
{
UWtype m1, m0;
/* Normalize. */
b = W_TYPE_SIZE - bm;
d1 = (d1 << bm) | (d0 >> b);
d0 = d0 << bm;
n2 = n1 >> b;
n1 = (n1 << bm) | (n0 >> b);
n0 = n0 << bm;
udiv_qrnnd (q0, n1, n2, n1, d1);
umul_ppmm (m1, m0, q0, d0);
if (m1 > n1 || (m1 == n1 && m0 > n0))
{
q0--;
sub_ddmmss (m1, m0, m1, m0, d1, d0);
}
q1 = 0;
/* Remainder in (n1n0 - m1m0) >> bm. */
if (rp != 0)
{
sub_ddmmss (n1, n0, n1, n0, m1, m0);
rr.s.low = (n1 << b) | (n0 >> bm);
rr.s.high = n1 >> bm;
*rp = rr.ll;
}
}
}
}
ww.s.low = q0;
ww.s.high = q1;
return ww.ll;
}
#define __negdi2(a) (-(a))
long long __divdi3(long long u, long long v)
{
int c = 0;
DWunion uu, vv;
DWtype w;
uu.ll = u;
vv.ll = v;
if (uu.s.high < 0) {
c = ~c;
uu.ll = __negdi2 (uu.ll);
}
if (vv.s.high < 0) {
c = ~c;
vv.ll = __negdi2 (vv.ll);
}
w = __udivmoddi4 (uu.ll, vv.ll, (UDWtype *) 0);
if (c)
w = __negdi2 (w);
return w;
}
// https://github.com/KaMeHb-UA/UE4m/blob/1d9ad5bfead06520570c7f24dad062f9f8717c1a/\
Engine/Extras/ThirdPartyNotUE/emsdk/emscripten/incoming/system/lib/compiler-rt/lib/\
builtins/divmoddi4.c
long long __divmoddi4(long long a, long long b, long long* rem)
{
long long d = __divdi3(a, b);
*rem = a - (d * b);
return d;
}
long long __moddi3(long long u, long long v)
{
int c = 0;
DWunion uu, vv;
DWtype w;
uu.ll = u;
vv.ll = v;
if (uu.s.high < 0) {
c = ~c;
uu.ll = __negdi2 (uu.ll);
}
if (vv.s.high < 0)
vv.ll = __negdi2 (vv.ll);
__udivmoddi4 (uu.ll, vv.ll, (UDWtype *) &w);
if (c)
w = __negdi2 (w);
return w;
}
unsigned long long __udivdi3(unsigned long long u, unsigned long long v)
{
return __udivmoddi4 (u, v, (UDWtype *) 0);
}
unsigned long long __umoddi3(unsigned long long u, unsigned long long v)
{
UDWtype w;
__udivmoddi4 (u, v, &w);
return w;
}
/* XXX: fix tcc's code generator to do this instead */
long long __ashrdi3(long long a, int b)
{
#ifdef __TINYC__
DWunion u;
u.ll = a;
if (b >= 32) {
u.s.low = u.s.high >> (b - 32);
u.s.high = u.s.high >> 31;
} else if (b != 0) {
u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b));
u.s.high = u.s.high >> b;
}
return u.ll;
#else
return a >> b;
#endif
}
/* XXX: fix tcc's code generator to do this instead */
unsigned long long __lshrdi3(unsigned long long a, int b)
{
#ifdef __TINYC__
DWunion u;
u.ll = a;
if (b >= 32) {
u.s.low = (unsigned)u.s.high >> (b - 32);
u.s.high = 0;
} else if (b != 0) {
u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b));
u.s.high = (unsigned)u.s.high >> b;
}
return u.ll;
#else
return a >> b;
#endif
}
/* XXX: fix tcc's code generator to do this instead */
long long __ashldi3(long long a, int b)
{
#ifdef __TINYC__
DWunion u;
u.ll = a;
if (b >= 32) {
u.s.high = (unsigned)u.s.low << (b - 32);
u.s.low = 0;
} else if (b != 0) {
u.s.high = ((unsigned)u.s.high << b) | ((unsigned)u.s.low >> (32 - b));
u.s.low = (unsigned)u.s.low << b;
}
return u.ll;
#else
return a << b;
#endif
}
#ifndef COMMIT_4ad186c5ef61_IS_FIXED
long long __tcc_cvt_ftol(long double x)
{
unsigned c0, c1;
long long ret;
__asm__ __volatile__ ("fnstcw %0" : "=m" (c0));
c1 = c0 | 0x0C00;
__asm__ __volatile__ ("fldcw %0" : : "m" (c1));
__asm__ __volatile__ ("fistpll %0" : "=m" (ret));
__asm__ __volatile__ ("fldcw %0" : : "m" (c0));
return ret;
}
#endif
#endif /* !__x86_64__ */
/* XXX: fix tcc's code generator to do this instead */
float __floatundisf(unsigned long long a)
{
DWunion uu;
XFtype r;
uu.ll = a;
if (uu.s.high >= 0) {
return (float)uu.ll;
} else {
r = (XFtype)uu.ll;
r += 18446744073709551616.0;
return (float)r;
}
}
double __floatundidf(unsigned long long a)
{
DWunion uu;
XFtype r;
uu.ll = a;
if (uu.s.high >= 0) {
return (double)uu.ll;
} else {
r = (XFtype)uu.ll;
r += 18446744073709551616.0;
return (double)r;
}
}
long double __floatundixf(unsigned long long a)
{
DWunion uu;
XFtype r;
uu.ll = a;
if (uu.s.high >= 0) {
return (long double)uu.ll;
} else {
r = (XFtype)uu.ll;
r += 18446744073709551616.0;
return (long double)r;
}
}
unsigned long long __fixunssfdi (float a1)
{
register union float_long fl1;
register int exp;
register unsigned long l;
fl1.f = a1;
if (fl1.l == 0)
return (0);
exp = EXP (fl1.l) - EXCESS - 24;
l = MANT(fl1.l);
if (exp >= 41)
return (unsigned long long)-1;
else if (exp >= 0)
return (unsigned long long)l << exp;
else if (exp >= -23)
return l >> -exp;
else
return 0;
}
unsigned long long __fixunsdfdi (double a1)
{
register union double_long dl1;
register int exp;
register unsigned long long l;
dl1.d = a1;
if (dl1.ll == 0)
return (0);
exp = EXPD (dl1) - EXCESSD - 53;
l = MANTD_LL(dl1);
if (exp >= 12)
return (unsigned long long)-1;
else if (exp >= 0)
return l << exp;
else if (exp >= -52)
return l >> -exp;
else
return 0;
}
unsigned long long __fixunsxfdi (long double a1)
{
register union ldouble_long dl1;
register int exp;
register unsigned long long l;
dl1.ld = a1;
if (dl1.l.lower == 0 && dl1.l.upper == 0)
return (0);
exp = EXPLD (dl1) - EXCESSLD - 64;
l = dl1.l.lower;
if (exp > 0)
return (unsigned long long)-1;
else if (exp >= -63)
return l >> -exp;
else
return 0;
}
long long __fixsfdi (float a1)
{
long long ret; int s;
ret = __fixunssfdi((s = a1 >= 0) ? a1 : -a1);
return s ? ret : -ret;
}
long long __fixdfdi (double a1)
{
long long ret; int s;
ret = __fixunsdfdi((s = a1 >= 0) ? a1 : -a1);
return s ? ret : -ret;
}
long long __fixxfdi (long double a1)
{
long long ret; int s;
ret = __fixunsxfdi((s = a1 >= 0) ? a1 : -a1);
return s ? ret : -ret;
}
#if defined(TCC_TARGET_X86_64) && !defined(_WIN64)
#ifndef __TINYC__
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#else
/* Avoid including stdlib.h because it is not easily available when
cross compiling */
#include <stddef.h> /* size_t definition is needed for a x86_64-tcc to parse memset() */
void *malloc(unsigned long long);
void *memset(void *s, int c, size_t n);
void free(void*);
void abort(void);
#endif
enum __va_arg_type {
__va_gen_reg, __va_float_reg, __va_stack
};
//This should be in sync with the declaration on our include/stdarg.h
/* GCC compatible definition of va_list. */
typedef struct {
unsigned int gp_offset;
unsigned int fp_offset;
union {
unsigned int overflow_offset;
char *overflow_arg_area;
};
char *reg_save_area;
} __va_list_struct;
#undef __va_start
#undef __va_arg
#undef __va_copy
#undef __va_end
void __va_start(__va_list_struct *ap, void *fp)
{
memset(ap, 0, sizeof(__va_list_struct));
*ap = *(__va_list_struct *)((char *)fp - 16);
ap->overflow_arg_area = (char *)fp + ap->overflow_offset;
ap->reg_save_area = (char *)fp - 176 - 16;
}
void *__va_arg(__va_list_struct *ap,
enum __va_arg_type arg_type,
int size, int align)
{
size = (size + 7) & ~7;
align = (align + 7) & ~7;
switch (arg_type) {
case __va_gen_reg:
if (ap->gp_offset + size <= 48) {
ap->gp_offset += size;
return ap->reg_save_area + ap->gp_offset - size;
}
goto use_overflow_area;
case __va_float_reg:
if (ap->fp_offset < 128 + 48) {
ap->fp_offset += 16;
return ap->reg_save_area + ap->fp_offset - 16;
}
size = 8;
goto use_overflow_area;
case __va_stack:
use_overflow_area:
ap->overflow_arg_area += size;
ap->overflow_arg_area = (char*)((intptr_t)(ap->overflow_arg_area + align - 1) & -(intptr_t)align);
return ap->overflow_arg_area - size;
default:
#ifndef __TINYC__
fprintf(stderr, "unknown ABI type for __va_arg\n");
#endif
abort();
}
}
#endif /* __x86_64__ */
/* Flushing for tccrun */
#if defined(TCC_TARGET_X86_64) || defined(TCC_TARGET_I386)
void __clear_cache(void *beginning, void *end)
{
}
#elif defined(TCC_TARGET_ARM)
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <stdio.h>
void __clear_cache(void *beginning, void *end)
{
/* __ARM_NR_cacheflush is kernel private and should not be used in user space.
* However, there is no ARM asm parser in tcc so we use it for now */
#if 1
syscall(__ARM_NR_cacheflush, beginning, end, 0);
#else
__asm__ ("push {r7}\n\t"
"mov r7, #0xf0002\n\t"
"mov r2, #0\n\t"
"swi 0\n\t"
"pop {r7}\n\t"
"ret");
#endif
}
#else
#warning __clear_cache not defined for this architecture, avoid using tcc -run
#endif

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@@ -0,0 +1,24 @@
format ELF
section '.text' executable
include '../../../../../proc32.inc'
public memcpy
proc memcpy c, to:dword,from:dword,count:dword
push esi
push edi
mov ecx,[count]
test ecx,ecx
jz no_copy_block
mov esi,[from]
mov edi,[to]
cld
rep movsb
no_copy_block:
pop edi
pop esi
mov eax, [to]
ret
endp

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@@ -0,0 +1,34 @@
format ELF
section '.text' executable
include '../../../../../proc32.inc'
public memmove
proc memmove c, to:dword,from:dword,count:dword
push esi
push edi
mov ecx,[count]
test ecx,ecx
jz no_copy_block_
mov esi,[from]
mov edi,[to]
cmp esi, edi
je no_copy_block_
jg copy_
add esi, ecx
add edi, ecx
dec esi
dec edi
std
copy_:
rep movsb
cld
no_copy_block_:
pop edi
pop esi
mov eax,[to]
ret
endp

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@@ -0,0 +1,16 @@
format ELF
section '.text' executable
public memset
memset:
push edi
mov edi,[esp+8]
mov eax,[esp+12]
mov ecx,[esp+16]
jecxz .no_set
cld
rep stosb
.no_set:
mov eax, [esp+8]
pop edi
ret

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@@ -0,0 +1,23 @@
.text
acos.LC0:
.double 0d1.00000000000000000000e+00
.global acos;
acos:
fldl 4(%esp)
fld1
fsubp %st(0),%st(1)
fsqrt
fldl 4(%esp)
fld1
faddp %st(0),%st(1)
fsqrt
fpatan
fld %st(0)
faddp
ret

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@@ -0,0 +1,8 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double
acosh(double x)
{
return log(x + sqrt(x*x - 1));
}

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@@ -0,0 +1,16 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global asin;
asin:
fldl 4(%esp)
fld %st(0)
fmulp
fld1
fsubp
fsqrt
fldl 4(%esp)
fxch %st(1)
fpatan
ret

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@@ -0,0 +1,9 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double
asinh(double x)
{
return x>0 ? log(x + sqrt(x*x + 1)) : -log(sqrt(x*x+1)-x);
}

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@@ -0,0 +1,10 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global atan;
atan:
fldl 4(%esp)
fld1
fpatan
ret

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@@ -0,0 +1,37 @@
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
.data
.align 2
nan:
.long 0xffffffff
.byte 0xff
.byte 0xff
.byte 0xff
.byte 0x7f
.text
.global atan2;
atan2:
fldl 4(%esp)
fldl 12(%esp)
ftst
fnstsw %ax
sahf
jne doit
fxch %st(1)
ftst
fnstsw %ax
sahf
je isanan
fxch %st(1)
doit:
fpatan
ret
isanan:
movl $1, _errno
fstp %st(0)
fstp %st(0)
fldl nan
ret

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@@ -0,0 +1,8 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double
atanh(double x)
{
return log((1+x)/(1-x)) / 2.0;
}

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@@ -0,0 +1,26 @@
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
.global ceil;
ceil:
pushl %ebp
movl %esp,%ebp
subl $8,%esp
fstcw -4(%ebp)
fwait
movw -4(%ebp),%ax
andw $0xf3ff,%ax
orw $0x0800,%ax
movw %ax,-2(%ebp)
fldcw -2(%ebp)
fldl 8(%ebp)
frndint
fldcw -4(%ebp)
movl %ebp,%esp
popl %ebp
ret

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@@ -0,0 +1,17 @@
cos.L0:
.quad 0xffffffffffffffff
.global cos;
cos:
fldl 4(%esp)
fcos
fstsw
sahf
jnp cos.L1
fstp %st(0)
fldl cos.L0
cos.L1:
ret

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@@ -0,0 +1,8 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double cosh(double x)
{
const double ebig = exp(fabs(x));
return (ebig + 1.0/ebig) / 2.0;
}

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@@ -0,0 +1,33 @@
.data
exp.LCW1:
.word 0
exp.LCW2:
.word 0
exp.LC0:
.double 0d1.0e+00
.text
.global exp;
exp:
fldl 4(%esp)
fldl2e
fmulp
fstcw exp.LCW1
fstcw exp.LCW2
fwait
andw $0xf3ff, exp.LCW2
orw $0x0400, exp.LCW2
fldcw exp.LCW2
fldl %st(0)
frndint
fldcw exp.LCW1
fxch %st(1)
fsub %st(1),%st
f2xm1
faddl exp.LC0
fscale
fstp %st(1)
ret

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@@ -0,0 +1,8 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global fabs;
fabs:
fldl 4(%esp)
fabs
ret

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@@ -0,0 +1,26 @@
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
.global floor;
floor:
pushl %ebp
movl %esp,%ebp
subl $8,%esp
fstcw -4(%ebp)
fwait
movw -4(%ebp),%ax
andw $0xf3ff,%ax
orw $0x0400,%ax
movw %ax,-2(%ebp)
fldcw -2(%ebp)
fldl 8(%ebp)
frndint
fldcw -4(%ebp)
movl %ebp,%esp
popl %ebp
ret

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@@ -0,0 +1,26 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.text
.global fmod;
fmod:
fldl 4(%esp)
fldl 12(%esp)
ftst
fnstsw %ax
fxch %st(1)
sahf
jnz next
fstpl %st(0)
jmp out
next:
fprem
fnstsw %ax
sahf
jpe next
fstpl %st(1)
out:
ret

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@@ -0,0 +1,26 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double
frexp(double x, int *exptr)
{
union {
double d;
unsigned char c[8];
} u;
u.d = x;
/*
* The format of the number is:
* Sign, 12 exponent bits, 51 mantissa bits
* The exponent is 1023 biased and there is an implicit zero.
* We get the exponent from the upper bits and set the exponent
* to 0x3fe (1022).
*/
*exptr = (int)(((u.c[7] & 0x7f) << 4) | (u.c[6] >> 4)) - 1022;
u.c[7] &= 0x80;
u.c[7] |= 0x3f;
u.c[6] &= 0x0f;
u.c[6] |= 0xe0;
return u.d;
}

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@@ -0,0 +1,100 @@
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
/*
* hypot() function for DJGPP.
*
* hypot() computes sqrt(x^2 + y^2). The problem with the obvious
* naive implementation is that it might fail for very large or
* very small arguments. For instance, for large x or y the result
* might overflow even if the value of the function should not,
* because squaring a large number might trigger an overflow. For
* very small numbers, their square might underflow and will be
* silently replaced by zero; this won't cause an exception, but might
* have an adverse effect on the accuracy of the result.
*
* This implementation tries to avoid the above pitfals, without
* inflicting too much of a performance hit.
*
*/
/// #include <float.h>
#include <math.h>
#include <errno.h>
/* Approximate square roots of DBL_MAX and DBL_MIN. Numbers
between these two shouldn't neither overflow nor underflow
when squared. */
#define __SQRT_DBL_MAX 1.3e+154
#define __SQRT_DBL_MIN 2.3e-162
double
hypot(double x, double y)
{
double abig = fabs(x), asmall = fabs(y);
double ratio;
/* Make abig = max(|x|, |y|), asmall = min(|x|, |y|). */
if (abig < asmall)
{
double temp = abig;
abig = asmall;
asmall = temp;
}
/* Trivial case. */
if (asmall == 0.)
return abig;
/* Scale the numbers as much as possible by using its ratio.
For example, if both ABIG and ASMALL are VERY small, then
X^2 + Y^2 might be VERY inaccurate due to loss of
significant digits. Dividing ASMALL by ABIG scales them
to a certain degree, so that accuracy is better. */
if ((ratio = asmall / abig) > __SQRT_DBL_MIN && abig < __SQRT_DBL_MAX)
return abig * sqrt(1.0 + ratio*ratio);
else
{
/* Slower but safer algorithm due to Moler and Morrison. Never
produces any intermediate result greater than roughly the
larger of X and Y. Should converge to machine-precision
accuracy in 3 iterations. */
double r = ratio*ratio, t, s, p = abig, q = asmall;
do {
t = 4. + r;
if (t == 4.)
break;
s = r / t;
p += 2. * s * p;
q *= s;
r = (q / p) * (q / p);
} while (1);
return p;
}
}
#ifdef TEST
#include <stdio.h>
int
main(void)
{
printf("hypot(3, 4) =\t\t\t %25.17e\n", hypot(3., 4.));
printf("hypot(3*10^150, 4*10^150) =\t %25.17g\n", hypot(3.e+150, 4.e+150));
printf("hypot(3*10^306, 4*10^306) =\t %25.17g\n", hypot(3.e+306, 4.e+306));
printf("hypot(3*10^-320, 4*10^-320) =\t %25.17g\n",
hypot(3.e-320, 4.e-320));
printf("hypot(0.7*DBL_MAX, 0.7*DBL_MAX) =%25.17g\n",
hypot(0.7*DBL_MAX, 0.7*DBL_MAX));
printf("hypot(DBL_MAX, 1.0) =\t\t %25.17g\n", hypot(DBL_MAX, 1.0));
printf("hypot(1.0, DBL_MAX) =\t\t %25.17g\n", hypot(1.0, DBL_MAX));
printf("hypot(0.0, DBL_MAX) =\t\t %25.17g\n", hypot(0.0, DBL_MAX));
return 0;
}
#endif

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@@ -0,0 +1,32 @@
/* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double
ldexp(double v, int e)
{
double two = 2.0;
if (e < 0)
{
e = -e; /* This just might overflow on two-complement machines. */
if (e < 0) return 0.0;
while (e > 0)
{
if (e & 1) v /= two;
two *= two;
e >>= 1;
}
}
else if (e > 0)
{
while (e > 0)
{
if (e & 1) v *= two;
two *= two;
e >>= 1;
}
}
return v;
}

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@@ -0,0 +1,9 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global log;
log:
fldln2
fldl 4(%esp)
fyl2x
ret

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@@ -0,0 +1,35 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.text
.global modf;
modf:
pushl %ebp
movl %esp,%ebp
subl $16,%esp
pushl %ebx
fnstcw -4(%ebp)
fwait
movw -4(%ebp),%ax
orw $0x0c3f,%ax
movw %ax,-8(%ebp)
fldcw -8(%ebp)
fwait
fldl 8(%ebp)
frndint
fstpl -16(%ebp)
fwait
movl -16(%ebp),%edx
movl -12(%ebp),%ecx
movl 16(%ebp),%ebx
movl %edx,(%ebx)
movl %ecx,4(%ebx)
fldl 8(%ebp)
fsubl -16(%ebp)
leal -20(%ebp),%esp
fclex
fldcw -4(%ebp)
fwait
popl %ebx
leave
ret

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@@ -0,0 +1,23 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global modfl;
modfl:
pushl %ebp
movl %esp,%ebp
subl $4,%esp
fldt 8(%ebp)
movl 20(%ebp),%eax
fnstcw -2(%ebp)
movw -2(%ebp),%dx
orb $0x0c,%dh
movw %dx,-4(%ebp)
fldcw -4(%ebp)
fld %st(0)
frndint
fldcw -2(%ebp)
fld %st(0)
fstpt (%eax)
fsubrp %st,%st(1)
leave
ret

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@@ -0,0 +1,87 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.data
yint:
.word 0,0
pow.LCW1:
.word 0
pow.LCW2:
.word 0
.text
pow.LC0:
.double 0d1.0e+00
.global pow;
frac:
fstcw pow.LCW1
fstcw pow.LCW2
fwait
andw $0xf3ff,pow.LCW2
orw $0x0400,pow.LCW2
fldcw pow.LCW2
fldl %st(0)
frndint
fldcw pow.LCW1
fxch %st(1)
fsub %st(1),%st
ret
Lpow2:
call frac
f2xm1
faddl pow.LC0
fscale
fstp %st(1)
ret
pow:
fldl 12(%esp)
fldl 4(%esp)
ftst
fnstsw %ax
sahf
jbe xltez
fyl2x
jmp Lpow2
xltez:
jb xltz
fstp %st(0)
ftst
fnstsw %ax
sahf
ja ygtz
jb error
fstp %st(0)
fld1
fchs
error:
fsqrt
ret
ygtz:
fstp %st(0)
fldz
ret
xltz:
fabs
fxch %st(1)
call frac
ftst
fnstsw %ax
fstp %st(0)
sahf
je yisint
fstp %st(0)
fchs
jmp error
yisint:
fistl yint
fxch %st(1)
fyl2x
call Lpow2
andl $1,yint
jz yeven
fchs
yeven:
ret

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@@ -0,0 +1,34 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.data
pow10.LCW1:
.word 0
pow10.LCW2:
.word 0
pow10.LC0:
.double 0d1.0e+00
.text
.global pow10;
pow10:
fldl 4(%esp)
fldl2t
fmulp
fstcw pow10.LCW1
fstcw pow10.LCW2
fwait
andw $0xf3ff,pow10.LCW2
orw $0x0400,pow10.LCW2
fldcw pow10.LCW2
fldl %st(0)
frndint
fldcw pow10.LCW1
fxch %st(1)
fsub %st(1),%st
f2xm1
faddl pow10.LC0
fscale
fstp %st(1)
ret

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@@ -0,0 +1,32 @@
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
.data
pow2.LCW1:
.word 0
pow2.LCW2:
.word 0
pow2.LC0:
.double 0d1.0e+00
.text
.global pow2;
pow2:
fldl 4(%esp)
fstcw pow2.LCW1
fstcw pow2.LCW2
fwait
andw $0xf3ff,pow2.LCW2
orw $0x0400,pow2.LCW2
fldcw pow2.LCW2
fldl %st(0)
frndint
fldcw pow2.LCW1
fxch %st(1)
fsub %st(1),%st
f2xm1
faddl pow2.LC0
fscale
fstp %st(1)
ret

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@@ -0,0 +1,18 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global sin;
sin.L0:
.quad 0xffffffffffffffff
sin:
fldl 4(%esp)
fsin
fstsw
sahf
jnp sin.L1
fstp %st(0)
fldl L0
sin.L1:
ret

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@@ -0,0 +1,16 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double sinh(double x)
{
if(x >= 0.0)
{
const double epos = exp(x);
return (epos - 1.0/epos) / 2.0;
}
else
{
const double eneg = exp(-x);
return (1.0/eneg - eneg) / 2.0;
}
}

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@@ -0,0 +1,8 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.global sqrt;
sqrt:
fldl 4(%esp)
fsqrt
ret

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@@ -0,0 +1,16 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
tan.L0:
.quad 0xffffffffffffffff
tan:
fldl 4(%esp)
fptan
fstsw
fstp %st(0)
sahf
jnp tan.L1
/* fstp %st(0) - if exception, there is nothing on the stack */
fldl tan.L0
tan.L1:
ret

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@@ -0,0 +1,17 @@
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
double tanh(double x)
{
if (x > 50)
return 1;
else if (x < -50)
return -1;
else
{
const double ebig = exp(x);
const double esmall = 1.0/ebig;
return (ebig - esmall) / (ebig + esmall);
}
}

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@@ -0,0 +1,13 @@
.global longjmp
longjmp:
mov 4(%esp),%edx
mov 8(%esp),%eax
cmp $1,%eax
adc $0, %al
mov (%edx),%ebx
mov 4(%edx),%esi
mov 8(%edx),%edi
mov 12(%edx),%ebp
mov 16(%edx),%esp
jmp *20(%edx)

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@@ -0,0 +1,15 @@
.global setjmp
setjmp:
mov 4(%esp), %eax
mov %ebx, (%eax)
mov %esi, 4(%eax)
mov %edi, 8(%eax)
mov %ebp, 12(%eax)
lea 4(%esp), %ecx
mov %ecx, 16(%eax)
mov (%esp), %ecx
mov %ecx, 20(%eax)
xor %eax, %eax
ret

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@@ -0,0 +1,6 @@
#include <stdio.h>
void clearerr(FILE *stream) {
stream->error = 0;
stream->eof = 0;
}

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@@ -0,0 +1,81 @@
#include <sys/ksys.h>
#include <conio.h>
#include "stdio.h"
static char* __con_caption = "Console application";
static char* __con_dllname = "/sys/lib/console.obj";
int __con_is_load = 0;
void stdcall (*__con_init_hidden)(int wnd_width, unsigned wnd_height, int scr_width, int scr_height, const char* title);
void stdcall (*con_exit)(int);
void stdcall (*con_set_title)(const char* title);
void stdcall (*con_write_asciiz)(const char* str);
void stdcall (*con_write_string)(const char* str, dword length);
int cdecl (*con_printf)(const char* format, ...);
dword stdcall (*con_get_flags)(void);
dword stdcall (*con_set_flags)(dword new_flags);
int stdcall (*con_get_font_height)(void);
int stdcall (*con_get_cursor_height)(void);
int stdcall (*con_set_cursor_height)(int new_height);
int stdcall (*con_getch)(void);
word stdcall (*con_getch2)(void);
int stdcall (*con_kbhit)(void);
char* stdcall (*con_gets)(char* str, int n);
char* stdcall (*con_gets2)(con_gets2_callback callback, char* str, int n);
void stdcall (*con_cls)();
void stdcall (*con_get_cursor_pos)(int* px, int* py);
void stdcall (*con_set_cursor_pos)(int x, int y);
static void __con_panic(char* func_name)
{
debug_printf("In console.obj %s=NULL!\n", func_name);
_ksys_exit();
}
static void __con_lib_link(ksys_coff_etable_t *exp)
{
__con_init_hidden = _ksys_get_coff_func(exp, "con_init", __con_panic);
con_exit = _ksys_get_coff_func(exp, "con_exit", __con_panic);
con_set_title = _ksys_get_coff_func(exp, "con_set_title", __con_panic);
con_write_asciiz = _ksys_get_coff_func(exp, "con_write_asciiz", __con_panic);
con_write_string = _ksys_get_coff_func(exp, "con_write_string", __con_panic);
con_printf = _ksys_get_coff_func(exp, "con_printf", __con_panic);
con_get_flags = _ksys_get_coff_func(exp, "con_get_flags", __con_panic);
con_set_flags = _ksys_get_coff_func(exp, "con_set_flags", __con_panic);
con_get_font_height = _ksys_get_coff_func(exp, "con_get_font_height", __con_panic);
con_get_cursor_height = _ksys_get_coff_func(exp, "con_get_cursor_height", __con_panic);
con_set_cursor_height = _ksys_get_coff_func(exp, "con_set_cursor_height", __con_panic);
con_getch = _ksys_get_coff_func(exp, "con_getch", __con_panic);
con_getch2 = _ksys_get_coff_func(exp, "con_getch2", __con_panic);
con_kbhit = _ksys_get_coff_func(exp, "con_kbhit", __con_panic);
con_gets = _ksys_get_coff_func(exp, "con_gets", __con_panic);
con_gets2 = _ksys_get_coff_func(exp, "con_gets2", __con_panic);
con_cls = _ksys_get_coff_func(exp, "con_cls", __con_panic);
con_get_cursor_pos = _ksys_get_coff_func(exp, "con_get_cursor_pos", __con_panic);
con_set_cursor_pos = _ksys_get_coff_func(exp, "con_set_cursor_pos", __con_panic);
}
int con_init_opt(dword wnd_width, dword wnd_height, dword scr_width, dword scr_height, const char* title)
{
if(!__con_is_load){
ksys_coff_etable_t *__con_lib;
__con_lib = _ksys_load_coff(__con_dllname);
if(__con_lib==NULL){
_ksys_debug_puts("Error! Can't load console.obj lib\n");
return 1;
}
__con_lib_link(__con_lib);
__con_init_hidden(wnd_width, wnd_height, scr_width, scr_height, title);
__con_is_load= 1;
return 0;
}
return 1;
}
int con_init(void)
{
return con_init_opt(-1, -1, -1, -1, __con_caption);
}

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@@ -0,0 +1,15 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
#include <stdio.h>
#include <stdarg.h>
#include <limits.h>
void debug_printf(const char *format,...)
{
va_list ap;
static char log_board[STDIO_MAX_MEM];
va_start (ap, format);
vsnprintf(log_board, STDIO_MAX_MEM, format, ap);
va_end(ap);
_ksys_debug_puts(log_board);
}

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@@ -0,0 +1,7 @@
#include <stdio.h>
#include <stdlib.h>
int fclose(FILE *stream) {
free(stream);
return 0;
}

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@@ -0,0 +1,5 @@
#include <stdio.h>
int feof(FILE *stream) {
return stream->eof;
}

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@@ -0,0 +1,5 @@
#include <stdio.h>
int ferror(FILE *stream) {
return stream->error;
}

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@@ -0,0 +1,5 @@
#include <stdio.h>
int fflush(FILE *stream) {
return 0;
}

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@@ -0,0 +1,11 @@
#include <stdio.h>
int fgetc(FILE* stream)
{
int c=0;
if(fread(&c, sizeof(char), 1, stream)==1){
return c;
}else{
return EOF;
}
}

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@@ -0,0 +1,6 @@
#include <stdio.h>
int fgetpos(FILE *restrict stream, fpos_t *restrict pos) {
*pos = stream->position;
return 0;
}

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@@ -0,0 +1,24 @@
#include <stdio.h>
#include "conio.h"
#include <errno.h>
char *fgets(char *str, int n, FILE *stream)
{
int i=0, sym_code;
if(!stream || !str){
errno = EINVAL;
return NULL;
}
while (i<n-1){
sym_code = fgetc(stream);
if(sym_code =='\n' || sym_code == EOF){ break; }
str[i]=(char)sym_code;
i++;
}
if(i<1){ return NULL; }
return str;
}

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@@ -0,0 +1,7 @@
#include <stdio.h>
#include <stdlib.h>
FILE *fopen(const char *restrict _name, const char *restrict _mode) {
FILE *out = malloc(sizeof(FILE));
return freopen(_name, _mode, out);
}

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@@ -0,0 +1,817 @@
///////////////////////////////////////////////////////////////////////////////
// \author (c) Marco Paland (info@paland.com)
// 2014-2019, PALANDesign Hannover, Germany
//
// \license The MIT License (MIT)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// \brief Tiny printf, sprintf and (v)snprintf implementation, optimized for speed on
// embedded systems with a very limited resources. These routines are thread
// safe and reentrant!
// Use this instead of the bloated standard/newlib printf cause these use
// malloc for printf (and may not be thread safe).
//
///////////////////////////////////////////////////////////////////////////////
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "format_print.h"
#include <math.h>
// 'ntoa' conversion buffer size, this must be big enough to hold one converted
// numeric number including padded zeros (dynamically created on stack)
// default: 32 byte
#ifndef PRINTF_NTOA_BUFFER_SIZE
#define PRINTF_NTOA_BUFFER_SIZE 32U
#endif
// 'ftoa' conversion buffer size, this must be big enough to hold one converted
// float number including padded zeros (dynamically created on stack)
// default: 32 byte
#ifndef PRINTF_FTOA_BUFFER_SIZE
#define PRINTF_FTOA_BUFFER_SIZE 32U
#endif
// support for the floating point type (%f)
// default: activated
#ifndef PRINTF_DISABLE_SUPPORT_FLOAT
#define PRINTF_SUPPORT_FLOAT
#endif
// support for exponential floating point notation (%e/%g)
// default: activated
#ifndef PRINTF_DISABLE_SUPPORT_EXPONENTIAL
#define PRINTF_SUPPORT_EXPONENTIAL
#endif
// define the default floating point precision
// default: 6 digits
#ifndef PRINTF_DEFAULT_FLOAT_PRECISION
#define PRINTF_DEFAULT_FLOAT_PRECISION 6U
#endif
// define the largest float suitable to print with %f
// default: 1e9
#ifndef PRINTF_MAX_FLOAT
#define PRINTF_MAX_FLOAT 1e9
#endif
// support for the long long types (%llu or %p)
// default: activated
#ifndef PRINTF_DISABLE_SUPPORT_LONG_LONG
#define PRINTF_SUPPORT_LONG_LONG
#endif
// support for the ptrdiff_t type (%t)
// ptrdiff_t is normally defined in <stddef.h> as long or long long type
// default: activated
#ifndef PRINTF_DISABLE_SUPPORT_PTRDIFF_T
#define PRINTF_SUPPORT_PTRDIFF_T
#endif
///////////////////////////////////////////////////////////////////////////////
// internal flag definitions
#define FLAGS_ZEROPAD (1U << 0U)
#define FLAGS_LEFT (1U << 1U)
#define FLAGS_PLUS (1U << 2U)
#define FLAGS_SPACE (1U << 3U)
#define FLAGS_HASH (1U << 4U)
#define FLAGS_UPPERCASE (1U << 5U)
#define FLAGS_CHAR (1U << 6U)
#define FLAGS_SHORT (1U << 7U)
#define FLAGS_LONG (1U << 8U)
#define FLAGS_LONG_LONG (1U << 9U)
#define FLAGS_PRECISION (1U << 10U)
#define FLAGS_ADAPT_EXP (1U << 11U)
// import float.h for DBL_MAX
#if defined(PRINTF_SUPPORT_FLOAT)
#include <float.h>
#endif
// internal buffer output
void _out_buffer(char character, void* buffer, size_t idx, size_t maxlen)
{
if (idx < maxlen) {
((char*)buffer)[idx] = character;
}
}
// internal null output
void _out_null(char character, void* buffer, size_t idx, size_t maxlen)
{
(void)character; (void)buffer; (void)idx; (void)maxlen;
}
// internal secure strlen
// \return The length of the string (excluding the terminating 0) limited by 'maxsize'
static inline unsigned int _strnlen_s(const char* str, size_t maxsize)
{
const char* s;
for (s = str; *s && maxsize--; ++s);
return (unsigned int)(s - str);
}
// internal test if char is a digit (0-9)
// \return true if char is a digit
static inline bool _is_digit(char ch)
{
return (ch >= '0') && (ch <= '9');
}
// internal ASCII string to unsigned int conversion
static unsigned int _atoi(const char** str)
{
unsigned int i = 0U;
while (_is_digit(**str)) {
i = i * 10U + (unsigned int)(*((*str)++) - '0');
}
return i;
}
// output the specified string in reverse, taking care of any zero-padding
static size_t _out_rev(out_fct_type out, char* buffer, size_t idx, size_t maxlen, const char* buf, size_t len, unsigned int width, unsigned int flags)
{
const size_t start_idx = idx;
// pad spaces up to given width
if (!(flags & FLAGS_LEFT) && !(flags & FLAGS_ZEROPAD)) {
for (size_t i = len; i < width; i++) {
out(' ', buffer, idx++, maxlen);
}
}
// reverse string
while (len) {
out(buf[--len], buffer, idx++, maxlen);
}
// append pad spaces up to given width
if (flags & FLAGS_LEFT) {
while (idx - start_idx < width) {
out(' ', buffer, idx++, maxlen);
}
}
return idx;
}
// internal itoa format
static size_t _ntoa_format(out_fct_type out, char* buffer, size_t idx, size_t maxlen, char* buf, size_t len, bool negative, unsigned int base, unsigned int prec, unsigned int width, unsigned int flags)
{
// pad leading zeros
if (!(flags & FLAGS_LEFT)) {
if (width && (flags & FLAGS_ZEROPAD) && (negative || (flags & (FLAGS_PLUS | FLAGS_SPACE)))) {
width--;
}
while ((len < prec) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
buf[len++] = '0';
}
while ((flags & FLAGS_ZEROPAD) && (len < width) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
buf[len++] = '0';
}
}
// handle hash
if (flags & FLAGS_HASH) {
if (!(flags & FLAGS_PRECISION) && len && ((len == prec) || (len == width))) {
len--;
if (len && (base == 16U)) {
len--;
}
}
if ((base == 16U) && !(flags & FLAGS_UPPERCASE) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
buf[len++] = 'x';
}
else if ((base == 16U) && (flags & FLAGS_UPPERCASE) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
buf[len++] = 'X';
}
else if ((base == 2U) && (len < PRINTF_NTOA_BUFFER_SIZE)) {
buf[len++] = 'b';
}
if (len < PRINTF_NTOA_BUFFER_SIZE) {
buf[len++] = '0';
}
}
if (len < PRINTF_NTOA_BUFFER_SIZE) {
if (negative) {
buf[len++] = '-';
}
else if (flags & FLAGS_PLUS) {
buf[len++] = '+'; // ignore the space if the '+' exists
}
else if (flags & FLAGS_SPACE) {
buf[len++] = ' ';
}
}
return _out_rev(out, buffer, idx, maxlen, buf, len, width, flags);
}
// internal itoa for 'long' type
static size_t _ntoa_long(out_fct_type out, char* buffer, size_t idx, size_t maxlen, unsigned long value, bool negative, unsigned long base, unsigned int prec, unsigned int width, unsigned int flags)
{
char buf[PRINTF_NTOA_BUFFER_SIZE];
size_t len = 0U;
// no hash for 0 values
if (!value) {
flags &= ~FLAGS_HASH;
}
// write if precision != 0 and value is != 0
if (!(flags & FLAGS_PRECISION) || value) {
do {
const char digit = (char)(value % base);
buf[len++] = digit < 10 ? '0' + digit : (flags & FLAGS_UPPERCASE ? 'A' : 'a') + digit - 10;
value /= base;
} while (value && (len < PRINTF_NTOA_BUFFER_SIZE));
}
return _ntoa_format(out, buffer, idx, maxlen, buf, len, negative, (unsigned int)base, prec, width, flags);
}
// internal itoa for 'long long' type
#if defined(PRINTF_SUPPORT_LONG_LONG)
static size_t _ntoa_long_long(out_fct_type out, char* buffer, size_t idx, size_t maxlen, unsigned long long value, bool negative, unsigned long long base, unsigned int prec, unsigned int width, unsigned int flags)
{
char buf[PRINTF_NTOA_BUFFER_SIZE];
size_t len = 0U;
// no hash for 0 values
if (!value) {
flags &= ~FLAGS_HASH;
}
// write if precision != 0 and value is != 0
if (!(flags & FLAGS_PRECISION) || value) {
do {
const char digit = (char)(value % base);
buf[len++] = digit < 10 ? '0' + digit : (flags & FLAGS_UPPERCASE ? 'A' : 'a') + digit - 10;
value /= base;
} while (value && (len < PRINTF_NTOA_BUFFER_SIZE));
}
return _ntoa_format(out, buffer, idx, maxlen, buf, len, negative, (unsigned int)base, prec, width, flags);
}
#endif // PRINTF_SUPPORT_LONG_LONG
#if defined(PRINTF_SUPPORT_FLOAT)
#if defined(PRINTF_SUPPORT_EXPONENTIAL)
// forward declaration so that _ftoa can switch to exp notation for values > PRINTF_MAX_FLOAT
static size_t _etoa(out_fct_type out, char* buffer, size_t idx, size_t maxlen, double value, unsigned int prec, unsigned int width, unsigned int flags);
#endif
// internal ftoa for fixed decimal floating point
static size_t _ftoa(out_fct_type out, char* buffer, size_t idx, size_t maxlen, double value, unsigned int prec, unsigned int width, unsigned int flags)
{
char buf[PRINTF_FTOA_BUFFER_SIZE];
size_t len = 0U;
double diff = 0.0;
// powers of 10
static const double pow10[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000 };
// test for special values
if (value != value)
return _out_rev(out, buffer, idx, maxlen, "nan", 3, width, flags);
if (value < -DBL_MAX)
return _out_rev(out, buffer, idx, maxlen, "fni-", 4, width, flags);
if (value > DBL_MAX)
return _out_rev(out, buffer, idx, maxlen, (flags & FLAGS_PLUS) ? "fni+" : "fni", (flags & FLAGS_PLUS) ? 4U : 3U, width, flags);
// test for very large values
// standard printf behavior is to print EVERY whole number digit -- which could be 100s of characters overflowing your buffers == bad
if ((value > PRINTF_MAX_FLOAT) || (value < -PRINTF_MAX_FLOAT)) {
#if defined(PRINTF_SUPPORT_EXPONENTIAL)
return _etoa(out, buffer, idx, maxlen, value, prec, width, flags);
#else
return 0U;
#endif
}
// test for negative
bool negative = false;
if (value < 0) {
negative = true;
value = 0 - value;
}
// set default precision, if not set explicitly
if (!(flags & FLAGS_PRECISION)) {
prec = PRINTF_DEFAULT_FLOAT_PRECISION;
}
// limit precision to 9, cause a prec >= 10 can lead to overflow errors
while ((len < PRINTF_FTOA_BUFFER_SIZE) && (prec > 9U)) {
buf[len++] = '0';
prec--;
}
int whole = (int)value;
double tmp = (value - whole) * pow10[prec];
unsigned long frac = (unsigned long)tmp;
diff = tmp - frac;
if (diff > 0.5) {
++frac;
// handle rollover, e.g. case 0.99 with prec 1 is 1.0
if (frac >= pow10[prec]) {
frac = 0;
++whole;
}
}
else if (diff < 0.5) {
}
else if ((frac == 0U) || (frac & 1U)) {
// if halfway, round up if odd OR if last digit is 0
++frac;
}
if (prec == 0U) {
diff = value - (double)whole;
if ((!(diff < 0.5) || (diff > 0.5)) && (whole & 1)) {
// exactly 0.5 and ODD, then round up
// 1.5 -> 2, but 2.5 -> 2
++whole;
}
}
else {
unsigned int count = prec;
// now do fractional part, as an unsigned number
while (len < PRINTF_FTOA_BUFFER_SIZE) {
--count;
buf[len++] = (char)(48U + (frac % 10U));
if (!(frac /= 10U)) {
break;
}
}
// add extra 0s
while ((len < PRINTF_FTOA_BUFFER_SIZE) && (count-- > 0U)) {
buf[len++] = '0';
}
if (len < PRINTF_FTOA_BUFFER_SIZE) {
// add decimal
buf[len++] = '.';
}
}
// do whole part, number is reversed
while (len < PRINTF_FTOA_BUFFER_SIZE) {
buf[len++] = (char)(48 + (whole % 10));
if (!(whole /= 10)) {
break;
}
}
// pad leading zeros
if (!(flags & FLAGS_LEFT) && (flags & FLAGS_ZEROPAD)) {
if (width && (negative || (flags & (FLAGS_PLUS | FLAGS_SPACE)))) {
width--;
}
while ((len < width) && (len < PRINTF_FTOA_BUFFER_SIZE)) {
buf[len++] = '0';
}
}
if (len < PRINTF_FTOA_BUFFER_SIZE) {
if (negative) {
buf[len++] = '-';
}
else if (flags & FLAGS_PLUS) {
buf[len++] = '+'; // ignore the space if the '+' exists
}
else if (flags & FLAGS_SPACE) {
buf[len++] = ' ';
}
}
return _out_rev(out, buffer, idx, maxlen, buf, len, width, flags);
}
#if defined(PRINTF_SUPPORT_EXPONENTIAL)
// internal ftoa variant for exponential floating-point type, contributed by Martijn Jasperse <m.jasperse@gmail.com>
static size_t _etoa(out_fct_type out, char* buffer, size_t idx, size_t maxlen, double value, unsigned int prec, unsigned int width, unsigned int flags)
{
// check for NaN and special values
if ((value != value) || (value > DBL_MAX) || (value < -DBL_MAX)) {
return _ftoa(out, buffer, idx, maxlen, value, prec, width, flags);
}
// determine the sign
const bool negative = value < 0;
if (negative) {
value = -value;
}
// default precision
if (!(flags & FLAGS_PRECISION)) {
prec = PRINTF_DEFAULT_FLOAT_PRECISION;
}
// determine the decimal exponent
// based on the algorithm by David Gay (https://www.ampl.com/netlib/fp/dtoa.c)
union {
uint64_t U;
double F;
} conv;
conv.F = value;
int exp2 = (int)((conv.U >> 52U) & 0x07FFU) - 1023; // effectively log2
conv.U = (conv.U & ((1ULL << 52U) - 1U)) | (1023ULL << 52U); // drop the exponent so conv.F is now in [1,2)
// now approximate log10 from the log2 integer part and an expansion of ln around 1.5
int expval = (int)(0.1760912590558 + exp2 * 0.301029995663981 + (conv.F - 1.5) * 0.289529654602168);
// now we want to compute 10^expval but we want to be sure it won't overflow
exp2 = (int)(expval * 3.321928094887362 + 0.5);
const double z = expval * 2.302585092994046 - exp2 * 0.6931471805599453;
const double z2 = z * z;
conv.U = (uint64_t)(exp2 + 1023) << 52U;
// compute exp(z) using continued fractions, see https://en.wikipedia.org/wiki/Exponential_function#Continued_fractions_for_ex
conv.F *= 1 + 2 * z / (2 - z + (z2 / (6 + (z2 / (10 + z2 / 14)))));
// correct for rounding errors
if (value < conv.F) {
expval--;
conv.F /= 10;
}
// the exponent format is "%+03d" and largest value is "307", so set aside 4-5 characters
unsigned int minwidth = ((expval < 100) && (expval > -100)) ? 4U : 5U;
// in "%g" mode, "prec" is the number of *significant figures* not decimals
if (flags & FLAGS_ADAPT_EXP) {
// do we want to fall-back to "%f" mode?
if ((value >= 1e-4) && (value < 1e6)) {
if ((int)prec > expval) {
prec = (unsigned)((int)prec - expval - 1);
}
else {
prec = 0;
}
flags |= FLAGS_PRECISION; // make sure _ftoa respects precision
// no characters in exponent
minwidth = 0U;
expval = 0;
}
else {
// we use one sigfig for the whole part
if ((prec > 0) && (flags & FLAGS_PRECISION)) {
--prec;
}
}
}
// will everything fit?
unsigned int fwidth = width;
if (width > minwidth) {
// we didn't fall-back so subtract the characters required for the exponent
fwidth -= minwidth;
} else {
// not enough characters, so go back to default sizing
fwidth = 0U;
}
if ((flags & FLAGS_LEFT) && minwidth) {
// if we're padding on the right, DON'T pad the floating part
fwidth = 0U;
}
// rescale the float value
if (expval) {
value /= conv.F;
}
// output the floating part
const size_t start_idx = idx;
idx = _ftoa(out, buffer, idx, maxlen, negative ? -value : value, prec, fwidth, flags & ~FLAGS_ADAPT_EXP);
// output the exponent part
if (minwidth) {
// output the exponential symbol
out((flags & FLAGS_UPPERCASE) ? 'E' : 'e', buffer, idx++, maxlen);
// output the exponent value
idx = _ntoa_long(out, buffer, idx, maxlen, (expval < 0) ? -expval : expval, expval < 0, 10, 0, minwidth-1, FLAGS_ZEROPAD | FLAGS_PLUS);
// might need to right-pad spaces
if (flags & FLAGS_LEFT) {
while (idx - start_idx < width) out(' ', buffer, idx++, maxlen);
}
}
return idx;
}
#endif // PRINTF_SUPPORT_EXPONENTIAL
#endif // PRINTF_SUPPORT_FLOAT
// internal vsnprintf
int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const char* format, va_list va)
{
unsigned int flags, width, precision, n;
size_t idx = 0U;
if (!buffer) {
// use null output function
out = _out_null;
}
while (*format)
{
// format specifier? %[flags][width][.precision][length]
if (*format != '%') {
// no
out(*format, buffer, idx++, maxlen);
format++;
continue;
}
else {
// yes, evaluate it
format++;
}
// evaluate flags
flags = 0U;
do {
switch (*format) {
case '0': flags |= FLAGS_ZEROPAD; format++; n = 1U; break;
case '-': flags |= FLAGS_LEFT; format++; n = 1U; break;
case '+': flags |= FLAGS_PLUS; format++; n = 1U; break;
case ' ': flags |= FLAGS_SPACE; format++; n = 1U; break;
case '#': flags |= FLAGS_HASH; format++; n = 1U; break;
default : n = 0U; break;
}
} while (n);
// evaluate width field
width = 0U;
if (_is_digit(*format)) {
width = _atoi(&format);
}
else if (*format == '*') {
const int w = va_arg(va, int);
if (w < 0) {
flags |= FLAGS_LEFT; // reverse padding
width = (unsigned int)-w;
}
else {
width = (unsigned int)w;
}
format++;
}
// evaluate precision field
precision = 0U;
if (*format == '.') {
flags |= FLAGS_PRECISION;
format++;
if (_is_digit(*format)) {
precision = _atoi(&format);
}
else if (*format == '*') {
const int prec = (int)va_arg(va, int);
precision = prec > 0 ? (unsigned int)prec : 0U;
format++;
}
}
// evaluate length field
switch (*format) {
case 'l' :
flags |= FLAGS_LONG;
format++;
if (*format == 'l') {
flags |= FLAGS_LONG_LONG;
format++;
}
break;
case 'h' :
flags |= FLAGS_SHORT;
format++;
if (*format == 'h') {
flags |= FLAGS_CHAR;
format++;
}
break;
#if defined(PRINTF_SUPPORT_PTRDIFF_T)
case 't' :
flags |= (sizeof(ptrdiff_t) == sizeof(long) ? FLAGS_LONG : FLAGS_LONG_LONG);
format++;
break;
#endif
case 'j' :
flags |= (sizeof(intmax_t) == sizeof(long) ? FLAGS_LONG : FLAGS_LONG_LONG);
format++;
break;
case 'z' :
flags |= (sizeof(size_t) == sizeof(long) ? FLAGS_LONG : FLAGS_LONG_LONG);
format++;
break;
default :
break;
}
// evaluate specifier
switch (*format) {
case 'd' :
case 'i' :
case 'u' :
case 'x' :
case 'X' :
case 'o' :
case 'b' : {
// set the base
unsigned int base;
if (*format == 'x' || *format == 'X') {
base = 16U;
}
else if (*format == 'o') {
base = 8U;
}
else if (*format == 'b') {
base = 2U;
}
else {
base = 10U;
flags &= ~FLAGS_HASH; // no hash for dec format
}
// uppercase
if (*format == 'X') {
flags |= FLAGS_UPPERCASE;
}
// no plus or space flag for u, x, X, o, b
if ((*format != 'i') && (*format != 'd')) {
flags &= ~(FLAGS_PLUS | FLAGS_SPACE);
}
// ignore '0' flag when precision is given
if (flags & FLAGS_PRECISION) {
flags &= ~FLAGS_ZEROPAD;
}
// convert the integer
if ((*format == 'i') || (*format == 'd')) {
// signed
if (flags & FLAGS_LONG_LONG) {
#if defined(PRINTF_SUPPORT_LONG_LONG)
const long long value = va_arg(va, long long);
idx = _ntoa_long_long(out, buffer, idx, maxlen, (unsigned long long)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
#endif
}
else if (flags & FLAGS_LONG) {
const long value = va_arg(va, long);
idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned long)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
}
else {
const int value = (flags & FLAGS_CHAR) ? (char)va_arg(va, int) : (flags & FLAGS_SHORT) ? (short int)va_arg(va, int) : va_arg(va, int);
idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned int)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
}
}
else {
// unsigned
if (flags & FLAGS_LONG_LONG) {
#if defined(PRINTF_SUPPORT_LONG_LONG)
idx = _ntoa_long_long(out, buffer, idx, maxlen, va_arg(va, unsigned long long), false, base, precision, width, flags);
#endif
}
else if (flags & FLAGS_LONG) {
idx = _ntoa_long(out, buffer, idx, maxlen, va_arg(va, unsigned long), false, base, precision, width, flags);
}
else {
const unsigned int value = (flags & FLAGS_CHAR) ? (unsigned char)va_arg(va, unsigned int) : (flags & FLAGS_SHORT) ? (unsigned short int)va_arg(va, unsigned int) : va_arg(va, unsigned int);
idx = _ntoa_long(out, buffer, idx, maxlen, value, false, base, precision, width, flags);
}
}
format++;
break;
}
#if defined(PRINTF_SUPPORT_FLOAT)
case 'f' :
case 'F' :
if (*format == 'F') flags |= FLAGS_UPPERCASE;
idx = _ftoa(out, buffer, idx, maxlen, va_arg(va, double), precision, width, flags);
format++;
break;
#if defined(PRINTF_SUPPORT_EXPONENTIAL)
case 'e':
case 'E':
case 'g':
case 'G':
if ((*format == 'g')||(*format == 'G')) flags |= FLAGS_ADAPT_EXP;
if ((*format == 'E')||(*format == 'G')) flags |= FLAGS_UPPERCASE;
idx = _etoa(out, buffer, idx, maxlen, va_arg(va, double), precision, width, flags);
format++;
break;
#endif // PRINTF_SUPPORT_EXPONENTIAL
#endif // PRINTF_SUPPORT_FLOAT
case 'c' : {
unsigned int l = 1U;
// pre padding
if (!(flags & FLAGS_LEFT)) {
while (l++ < width) {
out(' ', buffer, idx++, maxlen);
}
}
// char output
out((char)va_arg(va, int), buffer, idx++, maxlen);
// post padding
if (flags & FLAGS_LEFT) {
while (l++ < width) {
out(' ', buffer, idx++, maxlen);
}
}
format++;
break;
}
case 's' : {
const char* p = va_arg(va, char*);
unsigned int l = _strnlen_s(p, precision ? precision : (size_t)-1);
// pre padding
if (flags & FLAGS_PRECISION) {
l = (l < precision ? l : precision);
}
if (!(flags & FLAGS_LEFT)) {
while (l++ < width) {
out(' ', buffer, idx++, maxlen);
}
}
// string output
while ((*p != 0) && (!(flags & FLAGS_PRECISION) || precision--)) {
out(*(p++), buffer, idx++, maxlen);
}
// post padding
if (flags & FLAGS_LEFT) {
while (l++ < width) {
out(' ', buffer, idx++, maxlen);
}
}
format++;
break;
}
case 'p' : {
width = sizeof(void*) * 2U;
flags |= FLAGS_ZEROPAD | FLAGS_UPPERCASE;
#if defined(PRINTF_SUPPORT_LONG_LONG)
const bool is_ll = sizeof(uintptr_t) == sizeof(long long);
if (is_ll) {
idx = _ntoa_long_long(out, buffer, idx, maxlen, (uintptr_t)va_arg(va, void*), false, 16U, precision, width, flags);
}
else {
#endif
idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned long)((uintptr_t)va_arg(va, void*)), false, 16U, precision, width, flags);
#if defined(PRINTF_SUPPORT_LONG_LONG)
}
#endif
format++;
break;
}
case '%' :
out('%', buffer, idx++, maxlen);
format++;
break;
default :
out(*format, buffer, idx++, maxlen);
format++;
break;
}
}
// termination
out((char)0, buffer, idx < maxlen ? idx : maxlen - 1U, maxlen);
// return written chars without terminating \0
return (int)idx;
}

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@@ -0,0 +1,14 @@
#include <stddef.h>
#include <stdarg.h>
#pragma pack(push,1)
typedef struct {
void (*fct)(char character, void* arg);
void* arg;
} out_fct_wrap_type;
#pragma pack(pop)
typedef void (*out_fct_type)(char character, void* buffer, size_t idx, size_t maxlen);
void _out_buffer(char character, void* buffer, size_t idx, size_t maxlen);
void _out_null(char character, void* buffer, size_t idx, size_t maxlen);
int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const char* format, va_list va);

View File

@@ -0,0 +1,418 @@
/*
function for format read from any source
Siemargl formats as http://www.cplusplus.com/reference/cstdio/scanf/, no wchar though
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap05.html is used too
todo:
[characters], [^characters]
-%n nothing scanned, filled only if good result
-%d, i, u, o, x, p read similar - detect base by prefix 0 or 0x
-%a
-can overflow unsigned as signed
-radix point always '.', no LOCALEs
*/
#include <stdio.h>
#include <ctype.h>
#include <math.h>
#include <stdarg.h>
typedef int (*virtual_getc)(void *sp, const void *obj);
typedef void (*virtual_ungetc)(void *sp, int c, const void *obj);
enum flags_t
{
flag_unsigned = 0x02,
flag_register = 0x04,
flag_plus = 0x08,
flag_left_just = 0x10,
flag_lead_zeros = 0x20,
flag_space_plus = 0x40,
flag_hash_sign = 0x80,
flag_point = 0x100
};
int try_parse_real(long double *real, int ch, const void *src, void *save, virtual_getc vgetc, virtual_ungetc vungetc)
// returns 1 if OK, -1 == EOF, -2 parse broken
{
int sign = 1, have_digits = 0;
long long div;
if (ch == '+')
{
ch = vgetc(save, src);
if (ch == EOF) return EOF;
} else
if (ch == '-')
{
sign = -1;
ch = vgetc(save, src);
if (ch == EOF) return EOF;
};
*real = 0.0;
for (;;) // mantissa before point
{
// test ch is valid
if (isdigit(ch))
{
*real = *real * 10 + ch - '0';
have_digits++;
ch = vgetc(save, src);
if (ch == EOF || isspace(ch)) break; // ok, just finish num
} else
if (ch == '.' || ch == 'E' || ch == 'e')
{
break; // ok
}
else
{
vungetc(save, ch, src);
break;
}
}
if (ch != '.' && ch != 'E' && ch != 'e') // ok, just integer part
{
*real *= sign;
if (have_digits)
return 1;
else
return -2;
}
if(ch == '.')
{
ch = vgetc(save, src);
div = 10; // use as divisor
for (;;) // mantissa after point
{
// test ch is valid
if (isdigit(ch))
{
*real += (double)(ch - '0') / div;
div *= 10;
have_digits++;
ch = vgetc(save, src);
if (ch == EOF || isspace(ch)) break; // ok, just finish num
} else
if (ch == 'E' || ch == 'e')
{
break; // ok
}
else
{
vungetc(save, ch, src);
break;
}
}
if (ch != 'E' && ch != 'e') // ok, real as XX.YY
{
*real *= sign;
if (have_digits)
return 1;
else
return -2;
}
}
ch = vgetc(save, src);
*real *= sign;
// exponent
sign = 1;
if (ch == '+')
{
ch = vgetc(save, src);
if (ch == EOF) return EOF;
} else
if (ch == '-')
{
sign = -1;
ch = vgetc(save, src);
if (ch == EOF) return EOF;
};
div = 0;
for (;;)
{
// test ch is valid
if (isdigit(ch))
{
div = div * 10 + ch - '0';
ch = vgetc(save, src);
if (ch == EOF || isspace(ch)) break; // ok, just finish num
}
else
{
vungetc(save, ch, src);
break;
}
}
div *= sign;
*real *= pow(10, div);
return 1;
}
int try_parse_int(long long *digit, int ch, const void *src, void *save, virtual_getc vgetc, virtual_ungetc vungetc)
{
int sign = 1, base = 10, have_digits = 0;
if (ch == '+')
{
ch = vgetc(save, src);
if (ch == EOF) return EOF;
} else
if (ch == '-')
{
sign = -1;
ch = vgetc(save, src);
if (ch == EOF) return EOF;
};
if (ch == '0') // octal or hex, read next
{
base = 8;
ch = vgetc(save, src);
if (ch == EOF || isspace(ch))
have_digits++;
else
if (ch == 'x' || ch == 'X')
{
base = 16;
ch = vgetc(save, src);
if (ch == EOF) return EOF;
}
}
*digit = 0;
for (;;)
{
// test ch is valid
if ((isdigit(ch) && base == 10) ||
(isdigit(ch) && base == 8 && ch < '8') ||
(isxdigit(ch) && base == 16))
{
if (base == 16)
{
if (ch <= '9') ch-= '0';
else
if (ch <= 'F') ch = 10 + ch - 'A';
else
ch = 10 + ch - 'a';
}
else
ch -= '0';
*digit = *digit * base + ch;
have_digits++;
ch = vgetc(save, src);
if (ch == EOF || isspace(ch)) break; // ok, just finish num
}
else if (ch == EOF || isspace(ch))
break;
else
{
vungetc(save, ch, src);
break;
}
}
*digit *= sign;
if (have_digits)
return 1;
else
return -2;
}
int format_scan(const void *src, const char *fmt, va_list argp, virtual_getc vgetc, virtual_ungetc vungetc)
{
int i;
int length;
int fmt1, fmt2; // width, precision
size_t pos, posc;
const char *fmtc; // first point to %, fmtc points to specifier
int ch;
int format_flag;
int flag_long; // 2 = long double or long long int or wchar
int *point_to_n = NULL, nread = 0;
int flags; // parsed flags
int save = 0;
char *arg_str;
int *arg_int;
long *arg_long;
long long *arg_longlong;
float *arg_float;
double *arg_double;
long double *arg_longdouble;
long long digit;
long double real;
pos = 0;
while(*fmt)
{
while (*fmt && isspace(*fmt)) fmt++; // skip paces in format str
if (*fmt != '%') // usual char
{
ch = vgetc(&save, src);
if (ch != *fmt++) // char not match format
{
vungetc(&save, ch, src);
break;
}
pos++;
continue;
}
if (*(fmt + 1) == '%') // %%
{
ch = vgetc(&save, src);
if (ch != '%') // char not match format
{
vungetc(&save, ch, src);
break;
}
pos++;
fmt += 2;
continue;
}
//checking to containg format in the string
fmtc = fmt;
posc = pos;
flags = 0;
format_flag = 0;
flag_long = 0; // 2 = long double or long long int or wchar
while(*fmtc != '\0' && !format_flag) // searching end of format
{
fmtc++; posc++;
switch( *fmtc )
{
case 'a':
format_flag = 1;
flags |= flag_unsigned;
break;
case 'c': case 'd': case 'i': case 'e': case 'f': case 'g': case 's': case 'n':
format_flag = 1;
break;
case 'l':
flag_long = flag_long ? 2 : 1; // ll.eq.L
break;
case 'L':
flag_long = 2;
break;
case 'o': case 'u': case 'x': case 'p':
format_flag = 1;
flags |= flag_unsigned;
break;
case '*': case '.': // just skip
break;
default:
if(isdigit(*fmtc)) break;
goto exit_me; // non format char found - user error
}
}
if (format_flag == 0)
{
goto exit_me; // format char not found - user error
}
fmt1 = 0;
fmt2 = 0;
if (posc - pos > 1) // try to read width, precision
{
fmt++;
for(i = pos + 1; i < posc; i++)
{
switch(*fmt)
{
case '0':
if(fmt1 == 0 && (flags & flag_point) == 0) flags |= flag_lead_zeros;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if ((flags & flag_point) == 0)
fmt1 = fmt1 * 10 + (*fmt -'0');
else
fmt2 = fmt2 * 10 + (*fmt -'0');
break;
case '*': // ignoring
break;
case '.':
flags |= flag_point;
break;
case 'l': case 'L': // valid chars - skip
break;
default: // must be error
goto exit_me; // format char not found - user error
}
fmt++;
}
}
// do real work - format arguments values
// skip input spaces
do {
ch = vgetc(&save, src);
if (ch == EOF) goto exit_me;
} while (isspace(ch));
switch(*fmtc)
{
case 'n':
point_to_n = va_arg(argp, int*);
vungetc(&save, ch, src);
break;
case 'c': // read width chars, ever spaces
arg_str = va_arg(argp, char*);
if (fmt1 == 0) length = 1;
else length = fmt1;
for (i = 0; i < length;)
{
*arg_str++ = ch; i++;
ch = vgetc(&save, src);
if (ch == EOF) break;
}
if (i < length) goto exit_me; // not enough chars
break;
case 's':
arg_str = va_arg(argp, char*);
if (fmt1 == 0) length = 4095; // max string scan 4096
else length = fmt1;
for (i = 0; i < length; i++)
{
*arg_str++ = ch;
ch = vgetc(&save, src);
if (ch == EOF || isspace(ch)) break; // ok, just finish string
}
*arg_str++ = '\0';
break;
case 'd': case 'i': case 'u':
case 'o': case 'p': case 'x':
i = try_parse_int(&digit, ch, src, &save, vgetc, vungetc);
if (i < 0) goto exit_me;
if (flag_long == 0) { arg_int = va_arg(argp, int*); *arg_int = (int)digit; } else
if (flag_long == 1) { arg_long = va_arg(argp, long*); *arg_long = (long)digit; } else
if (flag_long == 2) { arg_longlong = va_arg(argp, long long*); *arg_longlong = digit; }
break;
case 'a': case 'A': case 'f': case 'F':
case 'e': case 'E':
case 'g': case 'G':
i = try_parse_real(&real, ch, src, &save, vgetc, vungetc);
if (i < 0) goto exit_me;
if (flag_long == 0) { arg_float = va_arg(argp, float*); *arg_float = (float)real; } else
if (flag_long == 1) { arg_double = va_arg(argp, double*); *arg_double = (double)real; } else
if (flag_long == 2) { arg_longdouble = va_arg(argp, long double*); *arg_longdouble = real; }
break;
}
fmt = fmtc + 1;
nread++;
}
exit_me:
if (point_to_n) *point_to_n = nread;
return nread;
}

View File

@@ -0,0 +1,20 @@
#include <stdio.h>
typedef int (*virtual_getc)(void *sp, const void *obj);
typedef void (*virtual_ungetc)(void *sp, int c, const void *obj);
enum flags_t
{
flag_unsigned = 0x02,
flag_register = 0x04,
flag_plus = 0x08,
flag_left_just = 0x10,
flag_lead_zeros = 0x20,
flag_space_plus = 0x40,
flag_hash_sign = 0x80,
flag_point = 0x100
};
char *__scanf_buffer;
extern int _format_scan(const void *src, const char *fmt, va_list argp, virtual_getc vgetc, virtual_ungetc vungetc);

View File

@@ -0,0 +1,14 @@
#include "sys/ksys.h"
#include <stdio.h>
#include <stdarg.h>
int fprintf(FILE *restrict f, const char *restrict fmt, ...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = vfprintf(f, fmt, ap);
va_end(ap);
return ret;
}

View File

@@ -0,0 +1,12 @@
#include <stdio.h>
#include <errno.h>
#include <sys/ksys.h>
int fputc(int c, FILE *stream)
{
if(fwrite(&c, sizeof(char), 1, stream)==1){
return c;
}else{
return EOF;
}
}

View File

@@ -0,0 +1,11 @@
#include <stdio.h>
#include <string.h>
int fputs(const char *str, FILE *stream){
size_t str_len = strlen(str);
if(str_len == fwrite(str, sizeof(char), str_len , stream)){
return str[str_len-1];
}else{
return EOF;
}
}

View File

@@ -0,0 +1,38 @@
#include <stdio.h>
#include <errno.h>
#include "conio.h"
#include "sys/ksys.h"
size_t fread(void *restrict ptr, size_t size, size_t nmemb, FILE *restrict stream) {
unsigned bytes_read = 0;
unsigned bytes_count = size * nmemb;
if(!stream){
errno = EBADF;
return 0;
}
if(stream==stdin){
con_init();
con_gets((char*)ptr, bytes_count+1);
return nmemb;
}
else{
if(stream->mode & _FILEMODE_R){
if(!stream->__ungetc_emu_buff){
((char*) ptr)[0]=(char)stream->__ungetc_emu_buff;
//debug_printf("Ungetc: %x\n", ((char*) ptr)[0]);
}
unsigned status = _ksys_file_read_file(stream->name, stream->position, bytes_count, ptr , &bytes_read);
if (status) {
errno = EIO;
stream->error = errno;
return 0;
}else {
stream->position+=bytes_read;
}
}
}
return bytes_read;
}

View File

@@ -0,0 +1,53 @@
#include "stddef.h"
#include "sys/ksys.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define CREATE_FILE() if(_ksys_file_create(_name)){ \
errno= EIO; \
free(out); \
out = NULL; \
}
FILE *freopen(const char *restrict _name, const char *restrict _mode, FILE *restrict out) {
if(!_name || !_mode || !out){
errno = EINVAL;
return NULL;
}
if (strchr(_mode, 'r')) { out->mode = _FILEMODE_R; }
if (strchr(_mode, 'a')) { out->mode = _FILEMODE_A; }
if (strchr(_mode, 'w')) { out->mode = _FILEMODE_W; }
ksys_bdfe_t info;
int no_file = _ksys_file_get_info(_name, &info);
out->eof=0;
out->error=0;
out->position=0;
out->name = strdup(_name);
switch (out->mode) {
case _FILEMODE_A :
if(no_file){
CREATE_FILE();
}
out->position = info.size;
break;
case _FILEMODE_W :
CREATE_FILE();
break;
case _FILEMODE_R :
if(no_file){
free(out);
out = NULL;
}
break;
default:
free(out);
out = NULL;
break;
}
return out;
}

View File

@@ -0,0 +1,42 @@
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
int virtual_getc_file(void *sp, const void *obj)
// get next chat from file obj, save point is ptr to string char ptr
{
FILE *f = (FILE *)obj;
int ch = fgetc(f);
//printf("getc '%c'[%d];", ch, ch);
return ch;
}
void virtual_ungetc_file(void *sp, int c, const void *obj)
// if can, one step back savepoint in s
{
FILE *f = (FILE *)obj;
if (f) ungetc(c, f);
}
int vfscanf ( FILE * stream, const char * format, va_list arg )
{
return format_scan(stream, format, arg, &virtual_getc_file, &virtual_ungetc_file);
};
int fscanf ( FILE * stream, const char * format, ...)
{
va_list arg;
int n;
va_start(arg, format);
n = vfscanf(stream, format, arg);
va_end(arg);
return n;
}

View File

@@ -0,0 +1,18 @@
#include <stdio.h>
#include <sys/ksys.h>
int fseek(FILE *stream, long int offset, int whence) {
if (whence == SEEK_SET) {
stream->position = offset;
} else if (whence == SEEK_CUR) {
stream->position += offset;
} else if (whence == SEEK_END) {
ksys_bdfe_t info;
if (_ksys_file_get_info(stream->name, &info)) {
return -1;
}
stream->position = info.size + offset;
}
stream->eof = 0;
return 0;
}

View File

@@ -0,0 +1,7 @@
#include <stdio.h>
int fsetpos(FILE *stream, const fpos_t *pos) {
stream->position = *pos;
stream->eof = 0;
return 0;
}

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@@ -0,0 +1,5 @@
#include <stdio.h>
long int ftell(FILE *stream) {
return stream->position;
}

View File

@@ -0,0 +1,39 @@
#include <stdio.h>
#include "conio.h"
#include <sys/ksys.h>
#include <errno.h>
size_t fwrite(const void *restrict ptr, size_t size, size_t nmemb, FILE *restrict stream) {
unsigned bytes_written = 0;
unsigned bytes_count = size * nmemb;
if(!stream){
errno = EBADF;
return 0;
}
if(stream==stdout){
con_init();
con_write_string((char*)ptr, bytes_count);
return nmemb;
}
else if(stream==stderr){
for (size_t i = 0; i < bytes_count; i++) {
char c = *(char*)(ptr+i);
_ksys_debug_putc(c);
}
}
else{
if(stream->mode != _FILEMODE_R){
unsigned status = _ksys_file_write_file(stream->name, stream->position, bytes_count, ptr, &bytes_written);
if (status != KSYS_FS_ERR_SUCCESS) {
errno = EIO;
stream->error = errno;
return 0;
}else {
stream->position+=bytes_written;
}
}
}
return bytes_written;
}

View File

@@ -0,0 +1,12 @@
#include <stdio.h>
#include <conio.h>
int getchar(void) {
con_init();
char c = 0;
con_gets(&c, 2);
if (c == 0) {
c = EOF;
}
return c;
}

View File

@@ -0,0 +1,16 @@
#include <stdio.h>
#include <string.h>
#include "conio.h"
#include <errno.h>
#include <limits.h>
char *gets(char* str)
{
con_init();
if(con_gets(str, STDIO_MAX_MEM)==NULL){
errno = EIO;
return NULL;
}
str[strlen(str)-1]='\0';
return str;
}

View File

@@ -0,0 +1,5 @@
#include <stdio.h>
void perror(const char *s) {
debug_printf("%s: It's some error, maybe...\n", s);
}

View File

@@ -0,0 +1,14 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
//#include "format_print.h"
int printf(const char *format, ...)
{
va_list arg;
va_start(arg, format);
return vprintf(format, arg);
}

View File

@@ -0,0 +1,14 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
#include <stdio.h>
#include <string.h>
#include "conio.h"
#include "sys/ksys.h"
int puts(const char *str)
{
con_init();
con_write_asciiz(str);
con_write_asciiz("\n");
return strlen(str);
}

View File

@@ -0,0 +1,6 @@
#include <stdio.h>
#include <sys/ksys.h>
int remove(const char *name) {
return _ksys_file_delete(name);
}

View File

@@ -0,0 +1,6 @@
#include <stdio.h>
#include <sys/ksys.h>
int rename(const char *name, const char *new_name) {
return _ksys_file_rename(name, new_name);
}

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@@ -0,0 +1,5 @@
#include <stdio.h>
void rewind(FILE *stream) {
stream->position = 0;
}

View File

@@ -0,0 +1,65 @@
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
char *__scanf_buffer = 0;
int virtual_getc_con(void *sp, const void *obj)
// get next chat from string obj, save point is ptr to string char ptr
{
int ch;
const char**spc= (const char**)sp;
if (!spc) return EOF; // error
if (!*spc) *spc = __scanf_buffer; // first call, init savepoint
while (!**spc) // need to read more
{
if(!gets(__scanf_buffer)) return EOF;
*spc = __scanf_buffer;
strcat(__scanf_buffer,"\n"); // imitate delimiter
}
if (**spc == 26 || **spc == 3) // ^C ^Z end of scan, clear buffer
{
*spc = __scanf_buffer;
*__scanf_buffer = 0;
return EOF; // ^C ^Z
}
ch = **spc; (*spc)++ ;
//printf("getc '%c'[%d];", ch, ch);
return ch;
}
void virtual_ungetc_con(void *sp, int c, const void *obj)
// if can, one step back savepoint in s
{
const char**spc= (const char**)sp;
if (spc && *spc > __scanf_buffer) (*spc)--;
//printf("Ungetc '%c'[%d];", c, c);
}
int vscanf ( const char * format, va_list arg )
{
return format_scan(NULL, format, arg, &virtual_getc_con, &virtual_ungetc_con);
};
int scanf ( const char * format, ...)
{
va_list arg;
int n;
va_start(arg, format);
if(__scanf_buffer == NULL) __scanf_buffer = malloc(4096);
if(__scanf_buffer == NULL) return -3;
*__scanf_buffer = 0;
n = vscanf(format, arg);
va_end(arg);
return n;
}

View File

@@ -0,0 +1,5 @@
#include <stdio.h>
void setbuf(FILE *restrict stream, char *restrict buf) {
return;
}

View File

@@ -0,0 +1,5 @@
#include <stdio.h>
int setvbuf(FILE *restrict stream, char *restrict buf, int mode, size_t size) {
return 0;
}

View File

@@ -0,0 +1,13 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
//#include "format_print.h"
#include <stdio.h>
int snprintf(char* buffer, size_t count, const char* format, ...)
{
va_list va;
va_start(va, format);
const int ret = _vsnprintf(_out_buffer, buffer, count, format, va);
va_end(va);
return ret;
}

View File

@@ -0,0 +1,13 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
//#include "format_print.h"
#include <stdio.h>
int sprintf(char* buffer, const char* format, ...)
{
va_list va;
va_start(va, format);
const int ret = _vsnprintf(_out_buffer, buffer, (size_t)-1, format, va);
va_end(va);
return ret;
}

View File

@@ -0,0 +1,46 @@
#include <stdio.h>
#include <stdarg.h>
int virtual_getc_str(void *sp, const void *obj)
// get next chat from string obj, save point is ptr to string char ptr
{
int ch;
const char *s = (const char *)obj;
const char**spc= (const char**)sp;
if (!s || !spc) return EOF; // error
if (!*spc) *spc = s; // first call, init savepoint
if (!**spc) return EOF; // EOS
ch = **spc; (*spc)++ ;
return ch;
}
void virtual_ungetc_str(void *sp, int c, const void *obj)
// if can, one step back savepoint in s
{
const char *s = (const char *)obj;
const char**spc= (const char**)sp;
if (s && spc && *spc > s) (*spc)--;
}
int vsscanf ( const char * s, const char * format, va_list arg )
{
return format_scan(s, format, arg, &virtual_getc_str, &virtual_ungetc_str);
};
int sscanf ( const char * s, const char * format, ...)
{
va_list arg;
int n;
va_start(arg, format);
n = vsscanf(s, format, arg);
va_end(arg);
return n;
}

View File

@@ -0,0 +1,11 @@
#include <stdio.h>
FILE *tmpfile(void) {
char name[FILENAME_MAX + 1];
if (!tmpnam(name)) {
return NULL;
}
return fopen(name, "wb+");
}

View File

@@ -0,0 +1,16 @@
#include <stdio.h>
#include <sys/ksys.h>
#include <string.h>
static char buf[FILENAME_MAX + 1];
static int static_index = 0;
char *tmpnam(char *name) {
ksys_proc_table_t table;
_ksys_process_info(&table, -1);
char *out = name ? name : buf;
// PID is also unique for each thread
sprintf(out, "/tmp0/1/%x_%x.tmp", table.pid, static_index++);
return out;
}

View File

@@ -0,0 +1,28 @@
#include <stdio.h>
#include <errno.h>
// non standard realization - support for virtually change ONLY ONE char
int ungetc(int c, FILE* file)
{
int res;
if(!file){
errno = EBADF;
return EOF;
}
if (file->mode != _FILEMODE_R){
errno = EACCES;
return EOF;
}
if (file->position == 0 || c == EOF)
{
errno = EOF;
return EOF;
}
file->__ungetc_emu_buff = c;
file->position--;
return c;
}

View File

@@ -0,0 +1,32 @@
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <limits.h>
int vfprintf(FILE * file, const char *format, va_list arg)
{
static char *buf=NULL;
int printed=0, rc = 0;
if(!file){
errno = EBADF;
return errno;
}
if(!format){
errno = EINVAL;
return errno;
}
buf = malloc(STDIO_MAX_MEM);
if(!buf){
errno = ENOMEM;
return errno;
}
printed = vsnprintf(buf, STDIO_MAX_MEM, format,arg);
rc = fwrite(buf, sizeof(char), printed, file);
free(buf);
return rc;
}

View File

@@ -0,0 +1,26 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "conio.h"
#include <sys/ksys.h>
#include <errno.h>
#include <limits.h>
//#include "format_print.h"
int vprintf ( const char * format, va_list arg )
{
int len = 0;
char *s = malloc(STDIO_MAX_MEM);
if(!s){
errno = ENOMEM;
return errno;
}
con_init();
len = vsnprintf(s, STDIO_MAX_MEM, format, arg);
con_write_string(s, len);
free(s);
return(len);
}

View File

@@ -0,0 +1,6 @@
//#include "format_print.h"
int vsnprintf(char* buffer, size_t count, const char* format, va_list va)
{
return _vsnprintf(_out_buffer, buffer, count, format, va);
}

View File

@@ -0,0 +1 @@
void ___chkstk_ms() {}

View File

@@ -0,0 +1,6 @@
#include <stdlib.h>
int abs(int a)
{
return a>0 ? a : -a;
}

View File

@@ -0,0 +1,21 @@
#include <stdlib.h>
#include <ctype.h>
/*
** atoi(s) - convert s to integer.
*/
int atoi(const char *s)
{
int sign, n;
while(isspace(*s)) ++s;
sign = 1;
switch(*s) {
case '-': sign = -1;
case '+': ++s;
}
n = 0;
while(isdigit(*s)) n = 10 * n + *s++ - '0';
return (sign * n);
}

View File

@@ -0,0 +1,17 @@
#include <stdlib.h>
#include <ctype.h>
long atol(const char *s)
{
long n=0;
int neg=0;
while (isspace(*s)) s++;
switch (*s) {
case '-': neg=1;
case '+': s++;
}
/* Compute n as a negative number to avoid overflow on LONG_MIN */
while (isdigit(*s))
n = 10*n - (*s++ - '0');
return neg ? n : -n;
}

View File

@@ -0,0 +1,17 @@
#include <stdlib.h>
#include <ctype.h>
long long atoll(const char *s)
{
long long n=0;
int neg=0;
while (isspace(*s)) s++;
switch (*s) {
case '-': neg=1;
case '+': s++;
}
/* Compute n as a negative number to avoid overflow on LLONG_MIN */
while (isdigit(*s))
n = 10*n - (*s++ - '0');
return neg ? n : -n;
}

View File

@@ -0,0 +1,6 @@
#include <stdlib.h>
#include <sys/ksys.h>
void *calloc(size_t num, size_t size) {
return _ksys_alloc(num*size);
}

View File

@@ -0,0 +1,6 @@
#include <stdlib.h>
div_t div(int num, int den)
{
return (div_t){ num/den, num%den };
}

View File

@@ -0,0 +1,12 @@
/* Copyright (C) 2021 Logaev Maxim (turbocat2001), GPLv2 */
#include <conio.h>
#include <sys/ksys.h>
void exit(int status)
{
if(__con_is_load){
con_exit(status);
}
_ksys_exit();
}

View File

@@ -0,0 +1,6 @@
#include <stdlib.h>
#include <sys/ksys.h>
void free(void *ptr) {
_ksys_free(ptr);
}

View File

@@ -0,0 +1,42 @@
#include <string.h>
#include <sys/ksys.h>
char *__reverse(char *str)
{
char tmp, *src, *dst;
size_t len;
if (str != NULL){
len = strlen (str);
if (len > 1) {
src = str;
dst = src + len - 1;
while (src < dst) {
tmp = *src;
*src++ = *dst;
*dst-- = tmp;
}
}
}
return str;
}
/* itoa from K&R */
void itoa(int n, char s[])
{
int i, sign;
if ((sign = n) < 0) /* record sign */
n = -n; /* make n positive */
i = 0;
do { /* generate digits in reverse order */
s[i++] = n % 10 + '0'; /* get next digit */
} while ((n /= 10) > 0); /* delete it */
if (sign < 0)
s[i++] = '-';
__reverse(s);
s[i] = '\0';
return;
}

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@@ -0,0 +1,6 @@
#include <stdlib.h>
long labs(long a)
{
return a>0 ? a : -a;
}

View File

@@ -0,0 +1,6 @@
#include <stdlib.h>
ldiv_t ldiv(long num, long den)
{
return (ldiv_t){ num/den, num%den };
}

View File

@@ -0,0 +1,6 @@
#include <stdlib.h>
long long llabs(long long a)
{
return a>0 ? a : -a;
}

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