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printf() fixes: 1) Relative addresses 2) Stack alignment when calling itoa

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Kwarde
2025-07-01 11:11:59 +02:00
parent 20564bb785
commit 0de494bf51
1 changed files with 9 additions and 7 deletions
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16
src/console.asm
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@ -91,11 +91,11 @@ printf:
push r14 ;current index of printfBuff
push r15 ;where to return after flush
mov [printfArgs], rsi
mov [printfArgs+8], rdx
mov [printfArgs+16], rcx
mov [printfArgs+24], r8
mov [printfArgs+32], r9
mov [rel printfArgs], rsi
mov [rel printfArgs+8], rdx
mov [rel printfArgs+16], rcx
mov [rel printfArgs+24], r8
mov [rel printfArgs+32], r9
xor r10, r10
xor r14, r14
@ -147,7 +147,9 @@ printf:
push rdx
push r8
push r10
sub rsp, 8
call itoa
add rsp, 8
pop r10
pop r8
pop rdx
@ -171,9 +173,9 @@ printf:
mov rdi, qword [rbp + 16 + (r10-5)*8]
.charToStr:
mov [printfNBuff], dil
mov [rel printfNBuff], dil
mov dil, 0
mov [printfNBuff+1], dil
mov [rel printfNBuff+1], dil
lea rsi, [rel printfNBuff]
jmp .insertLoop