mirror of
https://github.com/samsonjs/sectorlisp.git
synced 2026-03-25 09:05:48 +00:00
76 lines
2.6 KiB
ArmAsm
76 lines
2.6 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
|
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2021 Justine Alexandra Roberts Tunney │
|
|
│ Some size optimisations by Peter Ferrie │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
|
|
// compliant brainfuck in 83 bytes
|
|
// boots from bios on pc w/ 128kb+
|
|
|
|
.code16
|
|
.globl _start
|
|
_start: mov $0x10000>>4,%di
|
|
push %di
|
|
pop %ds
|
|
push %di
|
|
pop %es
|
|
mov %si,%dx
|
|
Brain: xor %ax,%ax
|
|
cmp %dx,%si
|
|
jb Fuck
|
|
int $0x16
|
|
mov %al,(%si)
|
|
inc %dx
|
|
Fuck: lodsb
|
|
cbw
|
|
cmp $'>',%al
|
|
je Right
|
|
cmp $'<',%al
|
|
je Left
|
|
sub $'+',%al
|
|
je Inc
|
|
dec %ax
|
|
je Get
|
|
dec %ax
|
|
je Dec
|
|
dec %ax
|
|
je Put
|
|
cmp $']'-'.',%al
|
|
je Loop
|
|
cmp $'['-'.',%al
|
|
jne Brain
|
|
Do: push %si
|
|
Loop: pop %ax
|
|
cmpb %ah,(%di)
|
|
jz Brain
|
|
push %ax
|
|
xchg %ax,%si
|
|
jmp Brain
|
|
Inc: incb (%di)
|
|
.byte 0x80
|
|
Dec: decb (%di)
|
|
.byte 0x3C
|
|
Right: inc %di
|
|
.byte 0x84
|
|
Put: mov $0x0e,%ah
|
|
mov (%di),%al
|
|
int $0x10
|
|
jmp Brain
|
|
Get: int $0x16
|
|
stosb
|
|
Left: dec %di
|
|
jmp Brain
|