190 lines
3.5 KiB
NASM
190 lines
3.5 KiB
NASM
;;===================================================================
|
|
;; Copyright 2011 dunkaist <dunkaist@gmail.com>
|
|
;; Distributed under the terms of the GNU General Public License v3.
|
|
;; See http://www.gnu.org/licenses/gpl.txt for the full license text.
|
|
;;-------------------------------------------------------------------
|
|
|
|
CHAR1TXT_FILE_SIZE equ 20478
|
|
CHAR2TXT_FILE_SIZE equ 25598
|
|
|
|
CHAR1MT_FILE_SIZE equ 2304
|
|
CHAR2MT_FILE_SIZE equ 2560
|
|
|
|
FONT_HEIGHT equ 9
|
|
FONT_WIDTH_MONO equ 5
|
|
FONT_WIDTH_VAR equ 7
|
|
|
|
|
|
use32
|
|
org 0x0
|
|
db 'MENUET01'
|
|
dd 0x01, start, i_end, e_end, stacktop, 0x0, cur_dir
|
|
|
|
include '../../proc32.inc'
|
|
include '../../macros.inc'
|
|
|
|
|
|
start:
|
|
mcall 68, 11
|
|
|
|
cld
|
|
mov ecx, 4096
|
|
mov edi, cur_dir
|
|
xor al, al
|
|
repnz scasb
|
|
std
|
|
mov al, '/'
|
|
repnz scasb
|
|
add edi, 2
|
|
cld
|
|
mov [cur_dir_slash], edi
|
|
mov esi, _char1.txt
|
|
mov ecx, 10/2
|
|
rep movsw
|
|
|
|
monospace:
|
|
mcall 70, func70 ; get file info
|
|
test eax, eax
|
|
jnz quit
|
|
|
|
mov ecx, dword[file_info.Size]
|
|
cmp ecx, CHAR1TXT_FILE_SIZE
|
|
jl quit
|
|
mov [func70.bytes_to_read], ecx
|
|
mcall 68, 12, ; allocate memory for char.txt
|
|
test eax, eax
|
|
jz quit
|
|
mov [func70.destination], eax
|
|
|
|
mov [func70.func_number], 0 ; read from file
|
|
mcall 70, func70
|
|
test eax, eax
|
|
jnz freemem_quit
|
|
|
|
|
|
xor dl, dl
|
|
mov esi, [func70.destination]
|
|
mov edi, esi ; yes, that's a feature
|
|
mov bl, FONT_WIDTH_MONO
|
|
.char:
|
|
add esi, 8
|
|
call do_symbol
|
|
dec dl
|
|
jnz .char
|
|
|
|
mov [func70.func_number], 2 ; create/overwrite file
|
|
mov [func70.bytes_to_read], CHAR1MT_FILE_SIZE
|
|
mov edi, [cur_dir_slash]
|
|
mov esi, _char1.mt
|
|
mov ecx, 10/2
|
|
rep movsw
|
|
mcall 70, func70
|
|
test eax, eax
|
|
jnz freemem_quit
|
|
|
|
|
|
varspace:
|
|
push [func70.destination]
|
|
push file_info
|
|
pop [func70.destination]
|
|
mov [func70.func_number], 5 ; get file info
|
|
mov edi, [cur_dir_slash]
|
|
mov esi, _char2.txt
|
|
mov ecx, 10/2
|
|
rep movsw
|
|
mcall 70, func70
|
|
pop [func70.destination]
|
|
test eax, eax
|
|
jnz freemem_quit
|
|
|
|
mov ecx, dword[file_info.Size]
|
|
cmp ecx, CHAR2TXT_FILE_SIZE
|
|
jl freemem_quit
|
|
mov [func70.bytes_to_read], ecx
|
|
mcall 68, 20, ; realloc memory
|
|
test eax, eax
|
|
jz freemem_quit
|
|
mov [func70.destination], eax
|
|
|
|
mov [func70.func_number], 0 ; read from file
|
|
mcall 70, func70
|
|
test eax, eax
|
|
jnz freemem_quit
|
|
|
|
|
|
xor dl, dl
|
|
mov esi, [func70.destination]
|
|
mov edi, esi ; yes, that's a feature
|
|
mov bl, FONT_WIDTH_VAR
|
|
.char:
|
|
add esi, 6
|
|
lodsb
|
|
cmp al, ' ' ; space means default symbol width (8)
|
|
jnz @f
|
|
mov al, 8+47
|
|
@@: sub al, 47
|
|
stosb
|
|
add esi, 3
|
|
call do_symbol
|
|
dec dl
|
|
jnz .char
|
|
|
|
|
|
mov [func70.func_number], 2 ; create/overwrite file
|
|
mov [func70.bytes_to_read], CHAR2MT_FILE_SIZE
|
|
mov edi, [cur_dir_slash]
|
|
mov esi, _char2.mt
|
|
mov ecx, 10/2
|
|
rep movsw
|
|
mcall 70, func70
|
|
test eax, eax
|
|
jnz freemem_quit
|
|
|
|
freemem_quit:
|
|
mcall 68, 13, [func70.destination]
|
|
quit:
|
|
mcall -1
|
|
|
|
|
|
proc do_symbol
|
|
mov ch, FONT_HEIGHT
|
|
.col: xor ah, ah
|
|
xor cl, cl
|
|
.row: lodsb
|
|
cmp al, ' '
|
|
setnz al
|
|
shl al, cl
|
|
or ah, al
|
|
inc cl
|
|
cmp cl, bl
|
|
jnz .row
|
|
add esi, 3
|
|
mov al, ah
|
|
stosb
|
|
dec ch
|
|
jnz .col
|
|
ret
|
|
endp
|
|
|
|
_char1.txt db 'char.txt',0
|
|
_char2.txt db 'char2.txt',0
|
|
_char1.mt db 'char.mt',0
|
|
_char2.mt db 'char2.mt',0
|
|
|
|
func70:
|
|
.func_number dd 5 ; function number
|
|
.position dd 0 ; position in file
|
|
.reserved dd 0 ; reserved
|
|
.bytes_to_read dd 0 ; bytes to read
|
|
.destination dd file_info
|
|
.flag db 0 ; see file name later
|
|
.file_name dd cur_dir ; pointer to the name of file (ASCIIZ)
|
|
|
|
i_end:
|
|
file_info FILEINFO
|
|
cur_dir rb 4096
|
|
cur_dir_slash rd 1 ; we save here position of the last '/' symbol
|
|
stack_here rb 0x200
|
|
stacktop:
|
|
e_end:
|