diff options
| -rw-r--r-- | stdlib/main.asm | 104 |
1 files changed, 83 insertions, 21 deletions
diff --git a/stdlib/main.asm b/stdlib/main.asm index efa7ba0..61a6fac 100644 --- a/stdlib/main.asm +++ b/stdlib/main.asm @@ -14,37 +14,99 @@ name: dq value } +macro push8 value { + sub rsp, 1 + mov [rsp], value +} + +macro push16 value { + mov ax, value + push ax +} + +macro push32 value { + mov eax, value + push eax +} + +macro push64 value { + mov rax, value + push rax +} + +macro funBegin name { + name#^var_size = 0 +} + +macro funDefVar name, var_name, size { + name#^var_size = name#^var_size + size + name#^#var_name#^pos = name#^var_size +} + +macro funEntry name { +name: + if name#^var_size <> 0 + push rbp + mov rbp, rsp + sub rsp, name#^var_size + end if +} + +macro funEnd name { + if name#^var_size <> 0 + add rsp, name#^var_size + pop rbp + end if + ret +} + +macro funCallBegin id { + n^#id#^param_size = 0 +} + +macro funCallParam id, value, size { + push#size value + n^#id#^param_size = n^#id#^param_size + size +} + +macro funCall id, name { + call name + if n^#id#^param_size <> 0 + add rsp, n^#id#^param_size + end if +} + segment readable executable entry _start ; rdi = the number print_u64: -mov rcx, rsp -mov rax, rdi -mov rbx, 10 + mov rcx, rsp + mov rax, rdi + mov rbx, 10 .L: -xor rdx, rdx -div rbx -add dl, '0' -dec rcx -mov [rcx],dl -cmp rax, 0 -jnz .L + xor rdx, rdx + div rbx + add dl, '0' + dec rcx + mov [rcx],dl + cmp rax, 0 + jnz .L -mov rax, SYS_write -mov rdi, STDOUT -mov rsi, rcx + mov rax, SYS_write + mov rdi, STDOUT + mov rsi, rcx -mov rdx, rsp -sub rdx, rcx + mov rdx, rsp + sub rdx, rcx -syscall -ret + syscall + ret _start: -call main -mov rax, SYS_exit -xor rdi,rdi -syscall + call main + mov rax, SYS_exit + xor rdi,rdi + syscall |