adventofcode2023/18/main.s

%include "utils64.s"

global _start
[bits 64]
[section .text]

%define FILENAME "input"
;%define FILENAME "input_test"

_start:
mov rsi, file
mov rbp, 11_000_000_000  ; vert
mov rdi, 1 ; area
proc_line:
cmp rsi, file.over
jae .done
mov al, '#'
mov rcx, 32
xchg rdi, rsi
repne scasb
xchg rdi, rsi
call hex_parse
mov rbx, rax
and bl, 3
shr rax, 4
inc rsi ; \n
; process shit
cmp bl, 0
je .r
cmp bl, 1
je .d
cmp bl, 2
je .l
cmp bl, 3
je .u
.r:
add rdi, rax
mul rbp
add rdi, rax
jmp proc_line
.l:
mul rbp
sub rdi, rax
jmp proc_line
.d:
add rdi, rax
sub rbp, rax
jmp proc_line
.u:
add rbp, rax
jmp proc_line
.done:

hlt:
hlt     ; go get a debugger, answer in rdi
jmp hlt

[section .data]
final_value: dq 0
file: incbin FILENAME
.over:

[section .bss]

[section .rodata]