137 lines
1.9 KiB
NASM
137 lines
1.9 KiB
NASM
|
|
||
|
|
format MZ
|
||
|
|
heap 0
|
||
|
|
stack 8000h
|
||
|
|
entry loader:init
|
||
|
|
|
||
|
|
include 'loader.inc'
|
||
|
|
|
||
|
|
segment main use32
|
||
|
|
|
||
|
|
start:
|
||
|
|
|
||
|
|
call get_params
|
||
|
|
jnc make_dump
|
||
|
|
|
||
|
|
mov esi,_usage
|
||
|
|
call display_string
|
||
|
|
mov ax,4C02h
|
||
|
|
int 21h
|
||
|
|
|
||
|
|
make_dump:
|
||
|
|
call preprocessed_source
|
||
|
|
mov ax,4C00h
|
||
|
|
int 21h
|
||
|
|
|
||
|
|
error:
|
||
|
|
mov esi,_error_prefix
|
||
|
|
call display_string
|
||
|
|
pop esi
|
||
|
|
call display_string
|
||
|
|
mov esi,_error_suffix
|
||
|
|
call display_string
|
||
|
|
mov ax,4C00h
|
||
|
|
int 21h
|
||
|
|
|
||
|
|
get_params:
|
||
|
|
push ds
|
||
|
|
mov ds,[psp_selector]
|
||
|
|
mov esi,81h
|
||
|
|
mov edi,params
|
||
|
|
find_param:
|
||
|
|
lodsb
|
||
|
|
cmp al,20h
|
||
|
|
je find_param
|
||
|
|
cmp al,0Dh
|
||
|
|
je all_params
|
||
|
|
or al,al
|
||
|
|
jz all_params
|
||
|
|
cmp [es:input_file],0
|
||
|
|
jne get_output_file
|
||
|
|
mov [es:input_file],edi
|
||
|
|
jmp process_param
|
||
|
|
get_output_file:
|
||
|
|
cmp [es:output_file],0
|
||
|
|
jne bad_params
|
||
|
|
mov [es:output_file],edi
|
||
|
|
process_param:
|
||
|
|
cmp al,22h
|
||
|
|
je string_param
|
||
|
|
copy_param:
|
||
|
|
stosb
|
||
|
|
lodsb
|
||
|
|
cmp al,20h
|
||
|
|
je param_end
|
||
|
|
cmp al,0Dh
|
||
|
|
je param_end
|
||
|
|
or al,al
|
||
|
|
jz param_end
|
||
|
|
jmp copy_param
|
||
|
|
string_param:
|
||
|
|
lodsb
|
||
|
|
cmp al,22h
|
||
|
|
je string_param_end
|
||
|
|
cmp al,0Dh
|
||
|
|
je param_end
|
||
|
|
or al,al
|
||
|
|
jz param_end
|
||
|
|
stosb
|
||
|
|
jmp string_param
|
||
|
|
bad_params_value:
|
||
|
|
stc
|
||
|
|
ret
|
||
|
|
param_end:
|
||
|
|
dec esi
|
||
|
|
string_param_end:
|
||
|
|
xor al,al
|
||
|
|
stosb
|
||
|
|
jmp find_param
|
||
|
|
all_params:
|
||
|
|
xor al,al
|
||
|
|
stosb
|
||
|
|
pop ds
|
||
|
|
cmp [input_file],0
|
||
|
|
je bad_params
|
||
|
|
cmp [output_file],0
|
||
|
|
je bad_params
|
||
|
|
clc
|
||
|
|
ret
|
||
|
|
bad_params:
|
||
|
|
stc
|
||
|
|
ret
|
||
|
|
|
||
|
|
include 'system.inc'
|
||
|
|
|
||
|
|
include '..\prepsrc.inc'
|
||
|
|
|
||
|
|
_usage db 'preprocessed source dumper for flat assembler',0Dh,0Ah
|
||
|
|
db 'usage: prepsrc <input> <output>',0Dh,0Ah
|
||
|
|
db 0
|
||
|
|
_error_prefix db 'error: ',0
|
||
|
|
_error_suffix db '.',0Dh,0Ah,0
|
||
|
|
|
||
|
|
input_file dd 0
|
||
|
|
output_file dd 0
|
||
|
|
|
||
|
|
psp_selector dw ?
|
||
|
|
environment_selector dw ?
|
||
|
|
|
||
|
|
memory_handles_count dd ?
|
||
|
|
memory_handles rd 400h
|
||
|
|
|
||
|
|
params rb 1000h
|
||
|
|
|
||
|
|
segment buffer_segment
|
||
|
|
|
||
|
|
buffer = (buffer_segment-main) shl 4
|
||
|
|
|
||
|
|
db 1000h dup ?
|
||
|
|
|
||
|
|
segment stack_segment
|
||
|
|
|
||
|
|
stack_bottom = (stack_segment-main) shl 4
|
||
|
|
|
||
|
|
db 4000h dup ?
|
||
|
|
|
||
|
|
stack_top = stack_bottom + $
|