201 lines
4.2 KiB
PHP
201 lines
4.2 KiB
PHP
; macros to write stuff to menuet's debug message board.
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; the macros don't change any registers, not even flags.
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; they take only effect if DEBUG is defined.
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;
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; Copyright (c) 2003 Thomas Mathys
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; killer@vantage.ch
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, write to the Free Software
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; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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;
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%ifndef _DBGBOARD_INC
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%define _DBGBOARD_INC
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%ifdef DEBUG
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;********************************************************************
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; print newline
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; no input
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;********************************************************************
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%macro DBG_BOARD_PRINTNEWLINE 0
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call dbg_board_printnewline
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%endm
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;********************************************************************
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; print a character
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;
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; examples : DBG_BOARD_PRINTCHAR '?'
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; DBG_BOARD_PRINTCHAR 65
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; DBG_BOARD_PRINTCHAR cl
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; DBG_BOARD_PRINTCHAR [esi]
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; DBG_BOARD_PRINTCHAR [somevariable]
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;********************************************************************
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%macro DBG_BOARD_PRINTCHAR 1
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push ecx
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mov cl,byte %1
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call dbg_board_printchar
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pop ecx
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%endm
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;********************************************************************
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; print a dword (in hex)
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;
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; examples: DBG_BOARD_PRINTDWORD esp
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; DBG_BOARD_PRINTDWORD 0xdeadbeef
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; DBG_BOARD_PRINTDWORD [somevariable]
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;********************************************************************
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%macro DBG_BOARD_PRINTDWORD 1
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push dword %1
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call dbg_board_printdword
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%endm
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;********************************************************************
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; print a string literal
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; a terminating zero is automagically appended to the string.
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;
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; examples DBG_BOARD_PRINTSTRINGLITERAL "foo",0
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; DBG_BOARD_PRINTSTRINGLITERAL "bar",10,13,0
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;********************************************************************
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%macro DBG_BOARD_PRINTSTRINGLITERAL 1+
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jmp %%bar
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%%foo db %1, 0 ; terminate string, just to be sure
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%%bar:
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push dword %%foo
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call dbg_board_printstring
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%endm
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;********************************************************************
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; print a string (asciiz)
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;
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; examples DBG_BOARD_PRINTSTRING addressofstring
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; DBG_BOARD_PRINTSTRING esi
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; DBG_BOARD_PRINTSTRING [ebx]
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;********************************************************************
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%macro DBG_BOARD_PRINTSTRING 1
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push dword %1
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call dbg_board_printstring
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%endm
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; no input
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dbg_board_printnewline:
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pushad
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pushfd
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mov eax,MOS_SC_DEBUGBOARD
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mov ebx,1
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mov ecx,10
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int 0x40
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mov ecx,13
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int 0x40
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popfd
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popad
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ret
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; input : cl = character to print
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dbg_board_printchar:
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pushad
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pushfd
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mov eax,MOS_SC_DEBUGBOARD
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mov ebx,1
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and ecx,0xff
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int 0x40
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popfd
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popad
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ret
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; input : dword to print on stack
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dbg_board_printdword:
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enter 0,0
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pushad
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pushfd
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mov eax,MOS_SC_DEBUGBOARD
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mov ebx,1
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mov ecx,'0' ; print 0x prefix
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int 0x40
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mov ecx,'x'
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int 0x40
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mov edx,[ebp + 8] ; get dword to print
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mov esi,8 ; iterate through all nibbles
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.loop:
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mov ecx,edx ; display hex digit
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shr ecx,28
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movzx ecx,byte [dbg_board_printdword_digits + ecx]
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int 0x40
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shl edx,4 ; next nibble
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dec esi
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jnz .loop
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popfd
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popad
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leave
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ret 4
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dbg_board_printdword_digits:
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db '0','1','2','3','4','5','6','7'
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db '8','9','a','b','c','d','e','f'
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; input : address of string (asciiz) to print on stack
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dbg_board_printstring:
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enter 0,0
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pushad
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pushfd
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cld
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mov esi,[ebp + 8] ; esi -> string
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mov ebx,1
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.loop:
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lodsb ; get character
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or al,al ; zero ?
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je .done ; yeah -> get outta here
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movzx ecx,al ; nope -> display character
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mov eax,MOS_SC_DEBUGBOARD
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int 0x40
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jmp .loop
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.done:
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popfd
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popad
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leave
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ret 4
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%else
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%macro DBG_BOARD_PRINTNEWLINE 0
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%endm
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%macro DBG_BOARD_PRINTCHAR 1
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%endm
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%macro DBG_BOARD_PRINTDWORD 1
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%endm
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%macro DBG_BOARD_PRINTSTRINGLITERAL 1+
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%endm
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%macro DBG_BOARD_PRINTSTRING 1
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%endm
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%endif
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%endif
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