fastjmp_arm.asm

; SPDX-FileCopyrightText: 2019-2024 Connor McLaughlin <[e-mail]>
; SPDX-License-Identifier: CC-BY-NC-ND-4.0

#include "ksarm64.h"

  EXPORT fastjmp_set
  EXPORT fastjmp_jmp

  TEXTAREA

  ; void fastjmp_set(fastjmp_buf*)
  LEAF_ENTRY fastjmp_set
    mov x16, sp
    stp x16, x30, [x0]
    stp x19, x20, [x0, #16]
    stp x21, x22, [x0, #32]
    stp x23, x24, [x0, #48]
    stp x25, x26, [x0, #64]
    stp x27, x28, [x0, #80]
    str x29, [x0, #96]
    stp d8, d9, [x0, #112]
    stp d10, d11, [x0, #128]
    stp d12, d13, [x0, #144]
    stp d14, d15, [x0, #160]
    mov w0, wzr
    br x30
  LEAF_END

  ; void fastjmp_jmp(fastjmp_buf*, int)
  LEAF_ENTRY fastjmp_jmp
    ldp x16, x30, [x0]
    mov sp, x16
    ldp x19, x20, [x0, #16]
    ldp x21, x22, [x0, #32]
    ldp x23, x24, [x0, #48]
    ldp x25, x26, [x0, #64]
    ldp x27, x28, [x0, #80]
    ldr x29, [x0, #96]
    ldp d8, d9, [x0, #112]
    ldp d10, d11, [x0, #128]
    ldp d12, d13, [x0, #144]
    ldp d14, d15, [x0, #160]
    mov w0, w1
    br x30
  LEAF_END

  END