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This commit is contained in:
Roman Venediktov 2024-02-06 15:39:33 +01:00
parent b532e90ea0
commit db296f5259
7 changed files with 57 additions and 34 deletions
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20
runtime/printf.s
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@ -1,10 +1,10 @@
.section .text
.global Lprintf
.extern printf
.extern Bprintf
.global Lfprintf
.extern fprintf
.extern Bfprintf
.global Lsprintf
.extern Bsprintf
@ -26,22 +26,22 @@ Lprintf:
movq %rsp, %rax
# rdi --- format string
# r11 --- number of arguments except format string
loop:
Lprintf_loop:
movq $0, %r12
cmpq %r11, %r12
jz continue
jz Lprintf_continue
decq %r11
movq (%rax), %r10
testq $1, %r10
jz jmpCont
jz Lprintf_loop_end
# unbox value
sarq %r10
movq %r10, (%rax)
jmpCont:
Lprintf_loop_end:
addq $8, %rax
jmp loop
continue:
jmp Lprintf_loop
Lprintf_continue:
popq %rsi
popq %rdx
popq %rcx
@ -49,7 +49,7 @@ continue:
popq %r9
# restore return address
pushq %r14
jmp printf
jmp Bprintf
Lfprintf:
# save return address
@ -85,7 +85,7 @@ Lfprintf_continue:
popq %r9
# restore return address
pushq %r14
jmp fprintf
jmp Bfprintf
Lsprintf:
# save return address