is there are stdio include file for FASM out there ? i found one for NASM ... it allows me to use function like high level language (printing text, read strings or integers ...etc.)




%define NL 10
%define CF_MASK 00000001h
%define PF_MASK 00000004h
%define AF_MASK 00000010h
%define ZF_MASK 00000040h
%define SF_MASK 00000080h
%define DF_MASK 00000400h
%define OF_MASK 00000800h


;
; Linux C doesn't put underscores on labels
;
%ifdef ELF_TYPE
%define _scanf scanf
%define _printf printf
%define _getchar getchar
%define _putchar putchar
%define _fputs fputs
%endif

%ifdef OBJ_TYPE
segment .data public align=4 class=data use32
%else
segment .data
%endif

int_format db "%i", 0
string_format db "%s", 0
reg_format db "Register Dump # %d", NL
db "EAX = %.8X EBX = %.8X ECX = %.8X EDX = %.8X", NL
db "ESI = %.8X EDI = %.8X EBP = %.8X ESP = %.8X", NL
db "EIP = %.8X FLAGS = %.4X %s %s %s %s %s %s %s", NL
db 0
carry_flag db "CF", 0
zero_flag db "ZF", 0
sign_flag db "SF", 0
parity_flag db "PF", 0
overflow_flag db "OF", 0
dir_flag db "DF", 0
aux_carry_flag db "AF", 0
unset_flag db " ", 0
mem_format1 db "Memory Dump # %d Address = %.8X", NL, 0
mem_format2 db "%.8X ", 0
mem_format3 db "%.2X ", 0
stack_format db "Stack Dump # %d", NL
db "EBP = %.8X ESP = %.8X", NL, 0
stack_line_format db "%+4d %.8X %.8X", NL, 0
math_format1 db "Math Coprocessor Dump # %d Control Word = %.4X"
db " Status Word = %.4X", NL, 0
valid_st_format db "ST%d: %.10g", NL, 0
invalid_st_format db "ST%d: Invalid ST", NL, 0
empty_st_format db "ST%d: Empty", NL, 0

;
; code is put in the _TEXT segment
;
%ifdef OBJ_TYPE
segment text public align=1 class=code use32
%else
segment .text
%endif
global read_int, print_int, print_string, read_char
global print_char, print_nl, sub_dump_regs, sub_dump_mem
global sub_dump_math, sub_dump_stack
extern _scanf, _printf, _getchar, _putchar, _fputs

read_int:
enter 4,0
pusha
pushf

lea eax, [ebp-4]
push eax
push dword int_format
call _scanf
pop ecx
pop ecx

popf
popa
mov eax, [ebp-4]
leave
ret

print_int:
enter 0,0
pusha
pushf

push eax
push dword int_format
call _printf
pop ecx
pop ecx

popf
popa
leave
ret

print_string:
enter 0,0
pusha
pushf

push eax
push dword string_format
call _printf
pop ecx
pop ecx

popf
popa
leave
ret

read_char:
enter 4,0
pusha
pushf

call _getchar
mov [ebp-4], eax

popf
popa
mov eax, [ebp-4]
leave
ret

print_char:
enter 0,0
pusha
pushf

push eax
call _putchar
pop ecx

popf
popa
leave
ret


print_nl:
enter 0,0
pusha
pushf

push dword 10 ; 10 == ASCII code for \n
call _putchar
pop ecx

popf
popa
leave
ret


sub_dump_regs:
enter 4,0
pusha
pushf
mov eax, [esp] ; read FLAGS back off stack
mov [ebp-4], eax ; save flags

;
; show which FLAGS are set
;
test eax, CF_MASK
jz cf_off
mov eax, carry_flag
jmp short push_cf
cf_off:
mov eax, unset_flag
push_cf:
push eax

test dword [ebp-4], PF_MASK
jz pf_off
mov eax, parity_flag
jmp short push_pf
pf_off:
mov eax, unset_flag
push_pf:
push eax

test dword [ebp-4], AF_MASK
jz af_off
mov eax, aux_carry_flag
jmp short push_af
af_off:
mov eax, unset_flag
push_af:
push eax

test dword [ebp-4], ZF_MASK
jz zf_off
mov eax, zero_flag
jmp short push_zf
zf_off:
mov eax, unset_flag
push_zf:
push eax

test dword [ebp-4], SF_MASK
jz sf_off
mov eax, sign_flag
jmp short push_sf
sf_off:
mov eax, unset_flag
push_sf:
push eax

test dword [ebp-4], DF_MASK
jz df_off
mov eax, dir_flag
jmp short push_df
df_off:
mov eax, unset_flag
push_df:
push eax

test dword [ebp-4], OF_MASK
jz of_off
mov eax, overflow_flag
jmp short push_of
of_off:
mov eax, unset_flag
push_of:
push eax

push dword [ebp-4] ; FLAGS
mov eax, [ebp+4]
sub eax, 10 ; EIP on stack is 10 bytes ahead of orig
push eax ; EIP
lea eax, [ebp+12]
push eax ; original ESP
push dword [ebp] ; original EBP
push edi
push esi
push edx
push ecx
push ebx
push dword [ebp-8] ; original EAX
push dword [ebp+8] ; # of dump
push dword reg_format
call _printf
add esp, 76
popf
popa
leave
ret 4

sub_dump_stack:
enter 0,0
pusha
pushf

lea eax, [ebp+20]
push eax ; original ESP
push dword [ebp] ; original EBP
push dword [ebp+8] ; # of dump
push dword stack_format
call _printf
add esp, 16

mov ebx, [ebp] ; ebx = original ebp
mov eax, [ebp+16] ; eax = # dwords above ebp
shl eax, 2 ; eax *= 4
add ebx, eax ; ebx = & highest dword in stack to display
mov edx, [ebp+16]
mov ecx, edx
add ecx, [ebp+12]
inc ecx ; ecx = # of dwords to display

stack_line_loop:
push edx
push ecx ; save ecx & edx

push dword [ebx] ; value on stack
push ebx ; address of value on stack
mov eax, edx
sal eax, 2 ; eax = 4*edx
push eax ; offset from ebp
push dword stack_line_format
call _printf
add esp, 16

pop ecx
pop edx

sub ebx, 4
dec edx
loop stack_line_loop

popf
popa
leave
ret 12


sub_dump_mem:
enter 0,0
pusha
pushf

push dword [ebp+12]
push dword [ebp+16]
push dword mem_format1
call _printf
add esp, 12
mov esi, [ebp+12] ; address
and esi, 0FFFFFFF0h ; move to start of paragraph
mov ecx, [ebp+8]
inc ecx
mem_outer_loop:
push ecx
push esi
push dword mem_format2
call _printf
add esp, 8

xor ebx, ebx
mem_hex_loop:
xor eax, eax
mov al, [esi + ebx]
push eax
push dword mem_format3
call _printf
add esp, 8
inc ebx
cmp ebx, 16
jl mem_hex_loop

mov eax, '"'
call print_char
xor ebx, ebx
mem_char_loop:
xor eax, eax
mov al, [esi+ebx]
cmp al, 32
jl non_printable
cmp al, 126
jg non_printable
jmp short mem_char_loop_continue
non_printable:
mov eax, '?'
mem_char_loop_continue:
call print_char

inc ebx
cmp ebx, 16
jl mem_char_loop

mov eax, '"'
call print_char
call print_nl

add esi, 16
pop ecx
loop mem_outer_loop

popf
popa
leave
ret 12

; function sub_dump_math
; prints out state of math coprocessor without modifying the coprocessor
; or regular processor state
; Parameters:
; dump number - dword at [ebp+8]
; Local variables:
; ebp-108 start of fsave buffer
; ebp-116 temp double
; Notes: This procedure uses the Pascal convention.
; fsave buffer structure:
; ebp-108 control word
; ebp-104 status word
; ebp-100 tag word
; ebp-80 ST0
; ebp-70 ST1
; ebp-60 ST2 ...
; ebp-10 ST7
;
sub_dump_math:
enter 116,0
pusha
pushf

fsave [ebp-108] ; save coprocessor state to memory
mov eax, [ebp-104] ; status word
and eax, 0FFFFh
push eax
mov eax, [ebp-108] ; control word
and eax, 0FFFFh
push eax
push dword [ebp+8]
push dword math_format1
call _printf
add esp, 16
;
; rotate tag word so that tags in same order as numbers are
; in the stack
;
mov cx, [ebp-104] ; ax = status word
shr cx, 11
and cx, 7 ; cl = physical state of number on stack top
mov bx, [ebp-100] ; bx = tag word
shl cl,1 ; cl *= 2
ror bx, cl ; move top of stack tag to lowest bits

mov edi, 0 ; edi = stack number of number
lea esi, [ebp-80] ; esi = address of ST0
mov ecx, 8 ; ecx = loop counter
tag_loop:
push ecx
mov ax, 3
and ax, bx ; ax = current tag
or ax, ax ; 00 -> valid number
je valid_st
cmp ax, 1 ; 01 -> zero
je zero_st
cmp ax, 2 ; 10 -> invalid number
je invalid_st
push edi ; 11 -> empty
push dword empty_st_format
call _printf
add esp, 8
jmp short cont_tag_loop
zero_st:
fldz
jmp short print_real
valid_st:
fld tword [esi]
print_real:
fstp qword [ebp-116]
push dword [ebp-112]
push dword [ebp-116]
push edi
push dword valid_st_format
call _printf
add esp, 16
jmp short cont_tag_loop
invalid_st:
push edi
push dword invalid_st_format
call _printf
add esp, 8
cont_tag_loop:
ror bx, 2 ; mov next tag into lowest bits
inc edi
add esi, 10 ; mov to next number on stack
pop ecx
loop tag_loop

frstor [ebp-108] ; restore coprocessor state
popf
popa
leave
ret 4

Posted on 2003-01-07 18:45:22 by AstroCoder
is there are "stdio" include file for FASM out there ? :(
Posted on 2003-01-08 05:09:01 by AstroCoder
AstroCoder,

You can also use the functions from C run-time dlls,just have a look at the attachments:

http://www.asmcommunity.net/board/index.php?topic=9531&highlight=cdecl+macros

I am afraid there is no "stdio.inc" file for the FASM package.

Regards,

Vortex
Posted on 2003-01-08 06:19:38 by Vortex
:alright: thank you Vortex !
Posted on 2003-01-08 08:17:57 by AstroCoder