; flat assembler core
; Copyright (c) 1999-2012, Tomasz Grysztar.
; All rights reserved.
dump_symbols:
mov edi,[code_start]
call setup_dump_header
mov esi,[input_file]
call copy_asciiz
cmp edi,[display_buffer]
jae out_of_memory
mov eax,edi
sub eax,ebx
mov [ebx-40h+0Ch],eax
mov esi,[output_file]
call copy_asciiz
cmp edi,[display_buffer]
jae out_of_memory
mov edx,[symbols_stream]
mov ebp,[free_additional_memory]
and [number_of_sections],0
cmp [output_format],4
je prepare_strings_table
cmp [output_format],5
jne strings_table_ready
bt [format_flags],0
jc strings_table_ready
prepare_strings_table:
cmp edx,ebp
je strings_table_ready
mov al,[edx]
test al,al
jz prepare_string
cmp al,80h
je prepare_string
add edx,0Ch
cmp al,0C0h
jb prepare_strings_table
add edx,4
jmp prepare_strings_table
prepare_string:
mov esi,edi
sub esi,ebx
xchg esi,[edx+4]
test al,al
jz prepare_section_string
or dword [edx+4],1 shl 31
add edx,0Ch
prepare_external_string:
mov ecx,[esi]
add esi,4
rep movs byte [edi],[esi]
mov byte [edi],0
inc edi
cmp edi,[display_buffer]
jae out_of_memory
jmp prepare_strings_table
prepare_section_string:
mov ecx,[number_of_sections]
mov eax,ecx
inc eax
mov [number_of_sections],eax
xchg eax,[edx+4]
shl ecx,2
add ecx,[free_additional_memory]
mov [ecx],eax
add edx,20h
test esi,esi
jz prepare_default_section_string
cmp [output_format],5
jne prepare_external_string
bt [format_flags],0
jc prepare_external_string
mov esi,[esi]
add esi,[resource_data]
copy_elf_section_name:
lods byte [esi]
cmp edi,[display_buffer]
jae out_of_memory
stos byte [edi]
test al,al
jnz copy_elf_section_name
jmp prepare_strings_table
prepare_default_section_string:
mov eax,'.fla'
stos dword [edi]
mov ax,'t'
stos word [edi]
cmp edi,[display_buffer]
jae out_of_memory
jmp prepare_strings_table
strings_table_ready:
mov edx,[display_buffer]
mov ebp,[memory_end]
sub ebp,[labels_list]
add ebp,edx
prepare_labels_dump:
cmp edx,ebp
je labels_dump_ok
mov eax,[edx+24]
test eax,eax
jz label_dump_name_ok
cmp eax,[memory_start]
jb label_name_outside_source
cmp eax,[source_start]
ja label_name_outside_source
sub eax,[memory_start]
dec eax
mov [edx+24],eax
jmp label_dump_name_ok
label_name_outside_source:
mov esi,eax
mov eax,edi
sub eax,ebx
or eax,1 shl 31
mov [edx+24],eax
movzx ecx,byte [esi-1]
lea eax,[edi+ecx+1]
cmp edi,[display_buffer]
jae out_of_memory
rep movsb
xor al,al
stosb
label_dump_name_ok:
mov eax,[edx+28]
test eax,eax
jz label_dump_line_ok
sub eax,[memory_start]
mov [edx+28],eax
label_dump_line_ok:
mov eax,[edx+20]
test eax,eax
jz base_symbol_for_label_ok
cmp eax,[symbols_stream]
mov eax,[eax+4]
jae base_symbol_for_label_ok
xor eax,eax
base_symbol_for_label_ok:
mov [edx+20],eax
mov ax,[current_pass]
cmp ax,[edx+16]
je label_defined_flag_ok
and byte [edx+8],not 1
label_defined_flag_ok:
cmp ax,[edx+18]
je label_used_flag_ok
and byte [edx+8],not 8
label_used_flag_ok:
add edx,LABEL_STRUCTURE_SIZE
jmp prepare_labels_dump
labels_dump_ok:
mov eax,edi
sub eax,ebx
mov [ebx-40h+14h],eax
add eax,40h
mov [ebx-40h+18h],eax
mov ecx,[memory_end]
sub ecx,[labels_list]
mov [ebx-40h+1Ch],ecx
add eax,ecx
mov [ebx-40h+20h],eax
mov ecx,[source_start]
sub ecx,[memory_start]
mov [ebx-40h+24h],ecx
add eax,ecx
mov [ebx-40h+28h],eax
mov eax,[number_of_sections]
shl eax,2
mov [ebx-40h+34h],eax
call prepare_preprocessed_source
mov esi,[labels_list]
mov ebp,edi
make_lines_dump:
cmp esi,[display_buffer]
je lines_dump_ok
mov eax,[esi-4]
mov ecx,[esi-8]
sub esi,8
sub esi,ecx
cmp eax,1
je process_line_dump
cmp eax,2
jne make_lines_dump
add dword [ebx-40h+3Ch],8
jmp make_lines_dump
process_line_dump:
mov eax,[esi+4]
sub eax,[code_start]
add eax,[headers_size]
cmp byte [esi+1Ah],0
je store_offset
xor eax,eax
store_offset:
stos dword [edi]
mov eax,[esi]
sub eax,[memory_start]
stos dword [edi]
mov eax,[esi+4]
xor edx,edx
xor cl,cl
sub eax,[esi+8]
sbb edx,[esi+8+4]
sbb cl,[esi+1Bh]
stos dword [edi]
mov eax,edx
stos dword [edi]
mov eax,[esi+10h]
stos dword [edi]
mov eax,[esi+14h]
test eax,eax
jz base_symbol_for_line_ok
cmp eax,[symbols_stream]
mov eax,[eax+4]
jae base_symbol_for_line_ok
xor eax,eax
base_symbol_for_line_ok:
stos dword [edi]
mov eax,[esi+18h]
and eax,01FFFFh
stos dword [edi]
mov [edi-1],cl
cmp edi,[display_buffer]
jae out_of_memory
mov eax,edi
sub eax,1Ch
sub eax,ebp
mov [esi],eax
jmp make_lines_dump
lines_dump_ok:
mov edx,edi
mov eax,[current_offset]
sub eax,[code_start]
add eax,[headers_size]
stos dword [edi]
mov ecx,edi
sub ecx,ebx
sub ecx,[ebx-40h+14h]
mov [ebx-40h+2Ch],ecx
add ecx,[ebx-40h+28h]
mov [ebx-40h+30h],ecx
add ecx,[ebx-40h+34h]
mov [ebx-40h+38h],ecx
find_inexisting_offsets:
sub edx,1Ch
cmp edx,ebp
jb write_symbols
test byte [edx+1Ah],1
jnz find_inexisting_offsets
cmp eax,[edx]
jb correct_inexisting_offset
mov eax,[edx]
jmp find_inexisting_offsets
correct_inexisting_offset:
and dword [edx],0
or byte [edx+1Ah],2
jmp find_inexisting_offsets
write_symbols:
mov edx,[symbols_file]
call create
jc write_failed
mov edx,[code_start]
mov ecx,[edx+14h]
add ecx,40h
call write
jc write_failed
mov edx,[display_buffer]
mov ecx,[memory_end]
sub ecx,[labels_list]
call write
jc write_failed
mov edx,[memory_start]
mov ecx,[source_start]
sub ecx,edx
call write
jc write_failed
mov edx,ebp
mov ecx,edi
sub ecx,edx
call write
jc write_failed
mov edx,[free_additional_memory]
mov ecx,[number_of_sections]
shl ecx,2
call write
jc write_failed
mov esi,[labels_list]
mov edi,[memory_start]
make_references_dump:
cmp esi,[display_buffer]
je references_dump_ok
mov eax,[esi-4]
mov ecx,[esi-8]
sub esi,8
sub esi,ecx
cmp eax,2
je dump_reference
cmp eax,1
jne make_references_dump
mov edx,[esi]
jmp make_references_dump
dump_reference:
mov eax,[memory_end]
sub eax,[esi]
sub eax,LABEL_STRUCTURE_SIZE
stosd
mov eax,edx
stosd
cmp edi,[display_buffer]
jb make_references_dump
jmp out_of_memory
references_dump_ok:
mov edx,[memory_start]
mov ecx,edi
sub ecx,edx
call write
jc write_failed
call close
ret
setup_dump_header:
xor eax,eax
mov ecx,40h shr 2
rep stos dword [edi]
mov ebx,edi
mov dword [ebx-40h],'fas'+1Ah shl 24
mov dword [ebx-40h+4],VERSION_MAJOR + VERSION_MINOR shl 8 + 40h shl 16
mov dword [ebx-40h+10h],40h
ret
prepare_preprocessed_source:
mov esi,[memory_start]
mov ebp,[source_start]
test ebp,ebp
jnz prepare_preprocessed_line
mov ebp,[current_line]
inc ebp
prepare_preprocessed_line:
cmp esi,ebp
jae preprocessed_source_ok
mov eax,[memory_start]
mov edx,[input_file]
cmp [esi],edx
jne line_not_from_main_input
mov [esi],eax
line_not_from_main_input:
sub [esi],eax
test byte [esi+7],1 shl 7
jz prepare_next_preprocessed_line
sub [esi+8],eax
sub [esi+12],eax
prepare_next_preprocessed_line:
call skip_preprocessed_line
jmp prepare_preprocessed_line
preprocessed_source_ok:
ret
skip_preprocessed_line:
add esi,16
skip_preprocessed_line_content:
lods byte [esi]
cmp al,1Ah
je skip_preprocessed_symbol
cmp al,3Bh
je skip_preprocessed_symbol
cmp al,22h
je skip_preprocessed_string
or al,al
jnz skip_preprocessed_line_content
ret
skip_preprocessed_string:
lods dword [esi]
add esi,eax
jmp skip_preprocessed_line_content
skip_preprocessed_symbol:
lods byte [esi]
movzx eax,al
add esi,eax
jmp skip_preprocessed_line_content
restore_preprocessed_source:
mov esi,[memory_start]
mov ebp,[source_start]
test ebp,ebp
jnz restore_preprocessed_line
mov ebp,[current_line]
inc ebp
restore_preprocessed_line:
cmp esi,ebp
jae preprocessed_source_restored
mov eax,[memory_start]
add [esi],eax
cmp [esi],eax
jne preprocessed_line_source_restored
mov edx,[input_file]
mov [esi],edx
preprocessed_line_source_restored:
test byte [esi+7],1 shl 7
jz restore_next_preprocessed_line
add [esi+8],eax
add [esi+12],eax
restore_next_preprocessed_line:
call skip_preprocessed_line
jmp restore_preprocessed_line
preprocessed_source_restored:
ret
dump_preprocessed_source:
mov edi,[free_additional_memory]
call setup_dump_header
mov esi,[input_file]
call copy_asciiz
cmp edi,[additional_memory_end]
jae out_of_memory
mov eax,edi
sub eax,ebx
dec eax
mov [ebx-40h+0Ch],eax
mov eax,edi
sub eax,ebx
mov [ebx-40h+14h],eax
add eax,40h
mov [ebx-40h+20h],eax
call prepare_preprocessed_source
sub esi,[memory_start]
mov [ebx-40h+24h],esi
mov edx,[symbols_file]
call create
jc write_failed
mov edx,[free_additional_memory]
mov ecx,[edx+14h]
add ecx,40h
call write
jc write_failed
mov edx,[memory_start]
mov ecx,esi
call write
jc write_failed
call close
ret