Compare commits
No commits in common. "43d12dae956e8419269f5d1da19a3e6c51f1a989" and "7e8516a143313ee26eb93acf3f22315a739b7c44" have entirely different histories.
43d12dae95
...
7e8516a143
@ -1,3 +0,0 @@
|
||||
all:
|
||||
nasm -g -felf32 main.s && ld -melf_i386 -g main.o
|
||||
|
@ -1,5 +0,0 @@
|
||||
32T3K 765
|
||||
T55J5 684
|
||||
KK677 28
|
||||
KTJJT 220
|
||||
QQQJA 483
|
376
07/main.s
376
07/main.s
@ -1,376 +0,0 @@
|
||||
global _start
|
||||
[bits 32]
|
||||
[section .text]
|
||||
|
||||
%include "utils.s"
|
||||
|
||||
; for h in hands
|
||||
; ; score hands
|
||||
; tmp := 0
|
||||
; counts[15] := [0; 15]
|
||||
; joker_values := [0; 5]
|
||||
; for c in h
|
||||
; if c > '9'
|
||||
; if c = 'T' then value := 10
|
||||
; elif c = 'J' then
|
||||
; value := 1
|
||||
; joker_values[char_idx] := 1
|
||||
; end
|
||||
; elif c = 'Q' then value := 11
|
||||
; elif c = 'K' then value := 12
|
||||
; elif c = 'A' then value := 13
|
||||
; else
|
||||
; value := c - '0'
|
||||
; end
|
||||
; tmp := (tmp * 14) + value
|
||||
; put in counts
|
||||
; end
|
||||
; ; joker bs
|
||||
; orig_val := tmp
|
||||
; best_score := orig_val
|
||||
; loop
|
||||
; fake_counts := counts
|
||||
; tmp := orig_val
|
||||
; for j in joker_values where j != 0
|
||||
; fake_counts[j] += 1
|
||||
; end
|
||||
;
|
||||
; ; check hand type
|
||||
; has_five := 0
|
||||
; has_four := 0
|
||||
; has_three := 0
|
||||
; has_two := 0
|
||||
; for n in fake_counts
|
||||
; if n = 5 then inc has_five
|
||||
; if n = 4 then inc has_four
|
||||
; if n = 3 then inc has_three
|
||||
; if n = 2 then inc has_two
|
||||
; end
|
||||
; if has_five then tmp := tmp + 60,000,000
|
||||
; elif has_four then tmp := tmp + 50,000,000
|
||||
; elif has_three and has_two then tmp := tmp + 40,000,000
|
||||
; elif has_three then tmp := tmp + 30,000,000
|
||||
; elif has_two = 2 then tmp := tmp + 20,000,000
|
||||
; elif has_two = 1 then tmp := tmp + 10,000,000
|
||||
; if tmp > best_score then best_score := tmp
|
||||
;
|
||||
; last_joker_carried := 1
|
||||
; i := 0
|
||||
; loop
|
||||
; if joker_values[i] + 1 = 14 then
|
||||
; joker_values[i] = 2
|
||||
; else
|
||||
; joker_values[i] += 1
|
||||
; last_joker_carried := 0
|
||||
; end
|
||||
; .cont:
|
||||
; inc i
|
||||
; if i = 5 then break
|
||||
; if !last_joker_carried then break
|
||||
; end
|
||||
; if last_joker_carried then break
|
||||
; end
|
||||
; ; store in array
|
||||
; stosd best_score -> hand_array
|
||||
; stosd bid -> hand_array
|
||||
; end
|
||||
;
|
||||
; bubble sort hand_array
|
||||
;
|
||||
; calc total
|
||||
; rank := 1
|
||||
; for (_, bid) in hand_array
|
||||
; final_value += rank * bid
|
||||
; rank += 1
|
||||
; end
|
||||
;
|
||||
; done
|
||||
|
||||
_start:
|
||||
|
||||
mov esi, file
|
||||
mov edi, hand_array
|
||||
; for l in lines
|
||||
; ...
|
||||
; end
|
||||
for_in_lines:
|
||||
; check for end
|
||||
cmp esi, file.over
|
||||
jae for_in_lines_end
|
||||
; score hand
|
||||
; tmp := 0
|
||||
xor ebp, ebp ; tmp
|
||||
; counts[15] := [0; 15]
|
||||
push edi
|
||||
mov edi, counts
|
||||
mov ecx, 15
|
||||
xor eax, eax
|
||||
rep stosb
|
||||
pop edi
|
||||
; zero joker_values
|
||||
mov dword [joker_values], 0
|
||||
mov dword [joker_values+4], 0
|
||||
|
||||
get_hand_score:
|
||||
; do 5 times
|
||||
; ...
|
||||
; end
|
||||
mov ecx, 5
|
||||
xor ebx, ebx ; char value
|
||||
push edi ; save edi
|
||||
xor edi, edi ; idx
|
||||
.next_char:
|
||||
lodsb
|
||||
; if c > '9'
|
||||
cmp al, '9'
|
||||
jle .is_num
|
||||
mov edx, 10
|
||||
cmp al, 'T'
|
||||
cmove ebx, edx
|
||||
cmp al, 'J'
|
||||
jne .not_joker
|
||||
mov ebx, 1
|
||||
mov byte [joker_values+edi], 1
|
||||
jmp .add_to_tmp_skip_counts
|
||||
.not_joker:
|
||||
mov edx, 11
|
||||
cmp al, 'Q'
|
||||
cmove ebx, edx
|
||||
mov edx, 12
|
||||
cmp al, 'K'
|
||||
cmove ebx, edx
|
||||
mov edx, 13
|
||||
cmp al, 'A'
|
||||
cmove ebx, edx
|
||||
jmp .add_to_tmp
|
||||
.is_num:
|
||||
; else val := c - '0'
|
||||
sub al, '0'
|
||||
movzx ebx, al
|
||||
; end
|
||||
.add_to_tmp:
|
||||
; put in counts
|
||||
inc byte [counts+ebx]
|
||||
.add_to_tmp_skip_counts:
|
||||
; tmp *= 14
|
||||
; tmp += score
|
||||
mov eax, ebp
|
||||
mov edx, 14
|
||||
mul edx
|
||||
add eax, ebx
|
||||
mov ebp, eax
|
||||
inc edi ; idx
|
||||
loop .next_char
|
||||
pop edi ; restore edi
|
||||
|
||||
; joker bs
|
||||
joker_bs:
|
||||
push ebp ; best_score (esp + 4)
|
||||
push ebp ; orig_val (esp)
|
||||
; loop .. end
|
||||
joker_loop:
|
||||
; fake_counts := counts
|
||||
; tmp := orig_val
|
||||
mov eax, [counts+0]
|
||||
mov [fake_counts+0], eax
|
||||
mov eax, [counts+4]
|
||||
mov [fake_counts+4], eax
|
||||
mov eax, [counts+8]
|
||||
mov [fake_counts+8], eax
|
||||
mov eax, [counts+12]
|
||||
mov [fake_counts+12], eax
|
||||
mov ebp, [esp] ; tmp := orig_val
|
||||
; for j in joker_values where j != 0
|
||||
; fake_counts[j] += 1
|
||||
; end
|
||||
push esi
|
||||
mov ecx, 5
|
||||
mov esi, joker_values
|
||||
xor eax, eax
|
||||
add_fake_counts:
|
||||
lodsb
|
||||
inc byte [fake_counts+eax]
|
||||
.cont:
|
||||
loop add_fake_counts
|
||||
mov byte [fake_counts], 0 ; idx 0 is always 0
|
||||
pop esi
|
||||
|
||||
; check hand type
|
||||
mov byte [has_five], 0
|
||||
mov byte [has_four], 0
|
||||
mov byte [has_three], 0
|
||||
mov byte [has_two], 0
|
||||
; for n in fake_counts
|
||||
mov ecx, 15
|
||||
push esi ; save line
|
||||
mov esi, fake_counts
|
||||
check_counts:
|
||||
lodsb
|
||||
cmp al, 5
|
||||
jne .check_4
|
||||
inc byte [has_five]
|
||||
.check_4:
|
||||
cmp al, 4
|
||||
jne .check_3
|
||||
inc byte [has_four]
|
||||
.check_3:
|
||||
cmp al, 3
|
||||
jne .check_2
|
||||
inc byte [has_three]
|
||||
.check_2:
|
||||
cmp al, 2
|
||||
jne .check_cont
|
||||
inc byte [has_two]
|
||||
.check_cont:
|
||||
loop check_counts
|
||||
; end
|
||||
pop esi ; restore line
|
||||
|
||||
cmp byte [has_five], 0
|
||||
je .maybe_four
|
||||
add ebp, 60000000
|
||||
jmp .save
|
||||
.maybe_four:
|
||||
cmp byte [has_four], 0
|
||||
je .maybe_three
|
||||
add ebp, 50000000
|
||||
jmp .save
|
||||
.maybe_three:
|
||||
cmp byte [has_three], 0
|
||||
je .maybe_twos
|
||||
add ebp, 30000000
|
||||
.maybe_twos:
|
||||
mov cl, byte [has_two]
|
||||
cmp cl, 0
|
||||
je .save
|
||||
mov eax, 10000000/2
|
||||
shl eax, cl
|
||||
add ebp, eax
|
||||
|
||||
.save:
|
||||
; if tmp > best_score then best_score := tmp
|
||||
cmp ebp, [esp+4] ; best_score
|
||||
jbe .not_better
|
||||
mov [esp+4], ebp
|
||||
.not_better:
|
||||
|
||||
mov edx, 1 ; last_joker_carried := 1
|
||||
xor ecx, ecx ; i := 0
|
||||
; loop..end
|
||||
increment_jokers:
|
||||
; if joker_values[i] + 1 = 14 then
|
||||
; joker_values[i] = 2
|
||||
; else
|
||||
; joker_values[i] += 1
|
||||
; last_joker_carried := 0
|
||||
; end
|
||||
cmp byte [joker_values+ecx], 0
|
||||
je .cont
|
||||
cmp byte [joker_values+ecx], 13
|
||||
jne .else
|
||||
mov byte [joker_values+ecx], 2
|
||||
jmp .cont
|
||||
.else:
|
||||
inc byte [joker_values+ecx]
|
||||
xor edx, edx
|
||||
.cont:
|
||||
inc ecx ; i += 1
|
||||
; if i = 5 then break
|
||||
; if !last_joker_carried then break
|
||||
cmp ecx, 5
|
||||
je increment_jokers_end
|
||||
test edx, edx
|
||||
jz increment_jokers_end
|
||||
jmp increment_jokers
|
||||
increment_jokers_end:
|
||||
; if last_joker_carried then break
|
||||
test edx, edx
|
||||
jnz joker_bs_end
|
||||
joker_loop_end:
|
||||
jmp joker_loop
|
||||
joker_bs_end:
|
||||
pop eax ; orig_val (discard)
|
||||
pop eax ; best_score
|
||||
|
||||
real_save:
|
||||
; store best_score & bid in array
|
||||
stosd
|
||||
inc esi ; skip space
|
||||
call dec_parse ; bid
|
||||
stosd
|
||||
|
||||
for_in_lines_cont:
|
||||
jmp for_in_lines
|
||||
for_in_lines_end:
|
||||
|
||||
; bubble sort hand_array
|
||||
bubble_sort:
|
||||
; get length (array is null terminated)
|
||||
mov esi, hand_array
|
||||
xor eax, eax
|
||||
get_len:
|
||||
cmp dword [esi+eax*8], 0
|
||||
je .done
|
||||
inc eax
|
||||
jmp get_len
|
||||
.done:
|
||||
mov ebp, eax ; n
|
||||
do_sort:
|
||||
xor edx, edx ; newn
|
||||
mov ecx, 1 ; i
|
||||
.inner:
|
||||
mov eax, [esi+ecx*8-8] ; A[i-1]
|
||||
cmp eax, [esi+ecx*8] ; A[i]
|
||||
jbe .inner_cont
|
||||
; swap elements
|
||||
xchg eax, [esi+ecx*8]
|
||||
mov [esi+ecx*8-8], eax
|
||||
mov eax, [esi+ecx*8-4] ; A[i-1] bid
|
||||
xchg eax, [esi+ecx*8+4] ; A[i] bid
|
||||
mov [esi+ecx*8-4], eax
|
||||
mov edx, ecx ; newn
|
||||
.inner_cont:
|
||||
inc ecx
|
||||
cmp ecx, ebp
|
||||
jb .inner
|
||||
mov ebp, edx ; n := newn
|
||||
cmp ebp, 1
|
||||
ja do_sort ; until n <= 1
|
||||
done_sort:
|
||||
|
||||
; calc total
|
||||
; rank := 1
|
||||
mov ebx, 1
|
||||
mov esi, hand_array
|
||||
calc_total:
|
||||
lodsd ; _
|
||||
lodsd ; bid
|
||||
test eax, eax
|
||||
jz calc_total_done
|
||||
mul ebx
|
||||
add [final_value], eax
|
||||
inc ebx
|
||||
jmp calc_total
|
||||
calc_total_done:
|
||||
|
||||
game_over:
|
||||
mov eax, [final_value]
|
||||
call print_dec
|
||||
jmp exit
|
||||
|
||||
[section .data]
|
||||
final_value: dd 0
|
||||
joker_values: times 8 db 0 ; we only use 5 but this makes zeroing easier
|
||||
counts: times 16 db 0 ; only use 14 or 13 but whatever
|
||||
fake_counts: times 16 db 0
|
||||
has_five: db 0
|
||||
has_four: db 0
|
||||
has_three: db 0
|
||||
has_two: db 0
|
||||
|
||||
file_lim: dd file.over - file
|
||||
file: incbin "input"
|
||||
.over:
|
||||
|
||||
[section .bss]
|
||||
hand_array: resd 4096
|
254
07/main_part1.s
254
07/main_part1.s
@ -1,254 +0,0 @@
|
||||
global _start
|
||||
[bits 32]
|
||||
[section .text]
|
||||
|
||||
%include "utils.s"
|
||||
|
||||
; for h in hands
|
||||
; ; score hands
|
||||
; tmp := 0
|
||||
; counts[15] := [0; 15]
|
||||
; for c in h
|
||||
; if c > '9'
|
||||
; if c = 'T' then score := 10
|
||||
; elif c = 'J' then score := 11
|
||||
; elif c = 'Q' then score := 12
|
||||
; elif c = 'K' then score := 13
|
||||
; elif c = 'A' then score := 14
|
||||
; else
|
||||
; score := c - '0'
|
||||
; end
|
||||
; tmp := (tmp * 14) + score
|
||||
; put in counts
|
||||
; end
|
||||
; ; check hand type
|
||||
; has_five := 0
|
||||
; has_four := 0
|
||||
; has_three := 0
|
||||
; has_two := 0
|
||||
; for n in counts
|
||||
; if n = 5 then inc has_five
|
||||
; if n = 4 then inc has_four
|
||||
; if n = 3 then inc has_three
|
||||
; if n = 2 then inc has_two
|
||||
; end
|
||||
; if has_five then tmp := tmp + 60,000,000
|
||||
; elif has_four then tmp := tmp + 50,000,000
|
||||
; elif has_three and has_two then tmp := tmp + 40,000,000
|
||||
; elif has_three then tmp := tmp + 30,000,000
|
||||
; elif has_two = 2 then tmp := tmp + 20,000,000
|
||||
; elif has_two = 1 then tmp := tmp + 10,000,000
|
||||
; ; store tmp in array
|
||||
; stosd tmp -> hand_array
|
||||
; stosd bid -> hand_array
|
||||
; end
|
||||
;
|
||||
; bubble sort hand_array
|
||||
;
|
||||
; calc total
|
||||
; rank := 1
|
||||
; for (_, bid) in hand_array
|
||||
; final_value += rank * bid
|
||||
; rank += 1
|
||||
; end
|
||||
;
|
||||
; done
|
||||
|
||||
_start:
|
||||
|
||||
mov esi, file
|
||||
mov edi, hand_array
|
||||
; for l in lines
|
||||
; ...
|
||||
; end
|
||||
for_in_lines:
|
||||
; check for end
|
||||
cmp esi, file.over
|
||||
jae for_in_lines_end
|
||||
; score hand
|
||||
; tmp := 0
|
||||
xor ebp, ebp ; tmp
|
||||
; counts[15] := [0; 15]
|
||||
push edi
|
||||
mov edi, counts
|
||||
mov ecx, 15
|
||||
xor eax, eax
|
||||
rep stosb
|
||||
pop edi
|
||||
|
||||
get_hand_score:
|
||||
; do 5 times
|
||||
; ...
|
||||
; end
|
||||
mov ecx, 5
|
||||
xor ebx, ebx ; char value
|
||||
.next_char:
|
||||
lodsb
|
||||
; if c > '9'
|
||||
cmp al, '9'
|
||||
jle .is_num
|
||||
mov edx, 10
|
||||
cmp al, 'T'
|
||||
cmove ebx, edx
|
||||
mov edx, 11
|
||||
cmp al, 'J'
|
||||
cmove ebx, edx
|
||||
mov edx, 12
|
||||
cmp al, 'Q'
|
||||
cmove ebx, edx
|
||||
mov edx, 13
|
||||
cmp al, 'K'
|
||||
cmove ebx, edx
|
||||
mov edx, 14
|
||||
cmp al, 'A'
|
||||
cmove ebx, edx
|
||||
jmp .add_to_tmp
|
||||
.is_num:
|
||||
; else val := c - '0'
|
||||
sub al, '0'
|
||||
movzx ebx, al
|
||||
; end
|
||||
.add_to_tmp:
|
||||
; tmp *= 14
|
||||
; tmp += score
|
||||
mov eax, ebp
|
||||
mov edx, 14
|
||||
mul edx
|
||||
add eax, ebx
|
||||
mov ebp, eax
|
||||
; put in counts
|
||||
inc byte [counts+ebx]
|
||||
loop .next_char
|
||||
|
||||
; check hand type
|
||||
mov byte [has_five], 0
|
||||
mov byte [has_four], 0
|
||||
mov byte [has_three], 0
|
||||
mov byte [has_two], 0
|
||||
; for n in counts
|
||||
mov ecx, 15
|
||||
push esi ; save line
|
||||
mov esi, counts
|
||||
check_counts:
|
||||
lodsb
|
||||
cmp al, 5
|
||||
jne .check_4
|
||||
inc byte [has_five]
|
||||
.check_4:
|
||||
cmp al, 4
|
||||
jne .check_3
|
||||
inc byte [has_four]
|
||||
.check_3:
|
||||
cmp al, 3
|
||||
jne .check_2
|
||||
inc byte [has_three]
|
||||
.check_2:
|
||||
cmp al, 2
|
||||
jne .check_cont
|
||||
inc byte [has_two]
|
||||
.check_cont:
|
||||
loop check_counts
|
||||
; end
|
||||
pop esi ; restore line
|
||||
|
||||
cmp byte [has_five], 0
|
||||
je .maybe_four
|
||||
add ebp, 60000000
|
||||
jmp .save
|
||||
.maybe_four:
|
||||
cmp byte [has_four], 0
|
||||
je .maybe_three
|
||||
add ebp, 50000000
|
||||
jmp .save
|
||||
.maybe_three:
|
||||
cmp byte [has_three], 0
|
||||
je .maybe_twos
|
||||
add ebp, 30000000
|
||||
.maybe_twos:
|
||||
mov cl, byte [has_two]
|
||||
cmp cl, 0
|
||||
je .save
|
||||
mov eax, 10000000/2
|
||||
shl eax, cl
|
||||
add ebp, eax
|
||||
.save:
|
||||
; store tmp & bid in array
|
||||
mov eax, ebp
|
||||
stosd
|
||||
inc esi ; skip space
|
||||
call dec_parse ; bid
|
||||
stosd
|
||||
|
||||
for_in_lines_cont:
|
||||
jmp for_in_lines
|
||||
for_in_lines_end:
|
||||
|
||||
; bubble sort hand_array
|
||||
bubble_sort:
|
||||
; get length (array is null terminated)
|
||||
mov esi, hand_array
|
||||
xor eax, eax
|
||||
get_len:
|
||||
cmp dword [esi+eax*8], 0
|
||||
je .done
|
||||
inc eax
|
||||
jmp get_len
|
||||
.done:
|
||||
mov ebp, eax ; n
|
||||
do_sort:
|
||||
xor edx, edx ; newn
|
||||
mov ecx, 1 ; i
|
||||
.inner:
|
||||
mov eax, [esi+ecx*8-8] ; A[i-1]
|
||||
cmp eax, [esi+ecx*8] ; A[i]
|
||||
jbe .inner_cont
|
||||
; swap elements
|
||||
xchg eax, [esi+ecx*8]
|
||||
mov [esi+ecx*8-8], eax
|
||||
mov eax, [esi+ecx*8-4] ; A[i-1] bid
|
||||
xchg eax, [esi+ecx*8+4] ; A[i] bid
|
||||
mov [esi+ecx*8-4], eax
|
||||
mov edx, ecx ; newn
|
||||
.inner_cont:
|
||||
inc ecx
|
||||
cmp ecx, ebp
|
||||
jb .inner
|
||||
mov ebp, edx ; n := newn
|
||||
cmp ebp, 1
|
||||
ja do_sort ; until n <= 1
|
||||
done_sort:
|
||||
|
||||
; calc total
|
||||
; rank := 1
|
||||
mov ebx, 1
|
||||
mov esi, hand_array
|
||||
calc_total:
|
||||
lodsd ; _
|
||||
lodsd ; bid
|
||||
test eax, eax
|
||||
jz calc_total_done
|
||||
mul ebx
|
||||
add [final_value], eax
|
||||
inc ebx
|
||||
jmp calc_total
|
||||
calc_total_done:
|
||||
|
||||
game_over:
|
||||
mov eax, [final_value]
|
||||
call print_dec
|
||||
jmp exit
|
||||
|
||||
[section .data]
|
||||
final_value: dd 0
|
||||
counts: times 15 db 0
|
||||
has_five: db 0
|
||||
has_four: db 0
|
||||
has_three: db 0
|
||||
has_two: db 0
|
||||
|
||||
file_lim: dd file.over - file
|
||||
file: incbin "input"
|
||||
.over:
|
||||
|
||||
[section .bss]
|
||||
hand_array: resd 4096
|
146
07/utils.s
146
07/utils.s
@ -1,146 +0,0 @@
|
||||
; call # val val2
|
||||
; int $0x80 eax eax edx -
|
||||
;
|
||||
; arg1 arg2 arg3 arg4 arg5 arg6 arg7
|
||||
; ebx ecx edx esi edi ebp -
|
||||
|
||||
exit:
|
||||
mov eax, 1 ; exit
|
||||
int 0x80
|
||||
|
||||
; filename in EBX
|
||||
; return handle in EBX
|
||||
; read only
|
||||
open_file:
|
||||
push eax
|
||||
push ecx
|
||||
mov eax, 5 ; open
|
||||
xor ecx, ecx ; read only
|
||||
int 0x80
|
||||
mov ebx, eax
|
||||
pop ecx
|
||||
pop eax
|
||||
ret
|
||||
|
||||
; file handle in EBX
|
||||
; buffer in ECX
|
||||
; count of bytes to read in EDX
|
||||
; return bytes actually read in EAX
|
||||
; exits on error
|
||||
read_file:
|
||||
mov eax, 3 ; read
|
||||
int 0x80
|
||||
test eax, eax
|
||||
js .err
|
||||
ret
|
||||
.err:
|
||||
mov eax, 4 ; write
|
||||
mov ebx, 1 ; stdout
|
||||
mov ecx, .err_str
|
||||
mov edx, 21
|
||||
int 0x80
|
||||
jmp exit
|
||||
.err_str: db `Could not read file.\n`
|
||||
|
||||
; string input in ESI
|
||||
; value in EAX
|
||||
; CF set if none, clear if some
|
||||
; ESI set past checked area
|
||||
dec_parse:
|
||||
push ebx
|
||||
push edx
|
||||
push edi
|
||||
xor eax, eax
|
||||
xor edi, edi
|
||||
mov ebx, 10 ; base
|
||||
lodsb
|
||||
sub al, '0'
|
||||
js .no_input
|
||||
cmp al, 9
|
||||
jle .got_char
|
||||
.no_input:
|
||||
stc ; set CF
|
||||
jmp .done
|
||||
.loop:
|
||||
xor eax,eax
|
||||
lodsb
|
||||
sub al, '0'
|
||||
js .dec_done
|
||||
cmp al, 9
|
||||
jg .dec_done
|
||||
.got_char:
|
||||
xchg edi,eax
|
||||
mul ebx
|
||||
add edi,eax
|
||||
jmp .loop
|
||||
.dec_done:
|
||||
clc ; clear CF
|
||||
.done:
|
||||
mov eax,edi
|
||||
pop edi
|
||||
pop edx
|
||||
pop ebx
|
||||
ret
|
||||
|
||||
; modifies no regs
|
||||
newline:
|
||||
pushad
|
||||
push 10
|
||||
mov eax, 4 ; write
|
||||
mov ebx, 1 ; stdout
|
||||
mov ecx, esp ; string
|
||||
mov edx, 1 ; length
|
||||
int 0x80
|
||||
add esp, 4
|
||||
popad
|
||||
ret
|
||||
; modifies no regs
|
||||
space:
|
||||
pushad
|
||||
push 9
|
||||
mov eax, 4 ; write
|
||||
mov ebx, 1 ; stdout
|
||||
mov ecx, esp ; string
|
||||
mov edx, 1 ; length
|
||||
int 0x80
|
||||
add esp, 4
|
||||
popad
|
||||
ret
|
||||
|
||||
; input in EAX, all regs unmodified
|
||||
print_dec:
|
||||
pushad ; save regs
|
||||
; max 4294967296 is 10 chars
|
||||
; round to nearest 32-bit boundary
|
||||
sub esp, 12
|
||||
; string in ECX, length in EDX
|
||||
lea ecx, [esp+11] ; last possible byte
|
||||
; check for 0
|
||||
test eax, eax
|
||||
jz .zero
|
||||
mov ebx, 10 ; base 10
|
||||
xor esi, esi ; counter
|
||||
.div_shit:
|
||||
xor edx, edx
|
||||
; divide
|
||||
div ebx
|
||||
dec ecx ; next char
|
||||
inc esi
|
||||
; store
|
||||
add dl, '0'
|
||||
mov byte [ecx], dl
|
||||
; check if done
|
||||
test eax, eax
|
||||
jnz .div_shit ; continue
|
||||
mov edx, esi ; counter in edx
|
||||
jmp .write
|
||||
.zero:
|
||||
mov byte [ecx], '0'
|
||||
mov edx, 1 ; length
|
||||
.write:
|
||||
mov eax, 4 ; write
|
||||
mov ebx, 1 ; stdout
|
||||
int 0x80
|
||||
add esp, 12 ; restore stack
|
||||
popad ; restore regs
|
||||
ret
|
Loading…
Reference in New Issue
Block a user