Duckstation/src/common/fastjmp_arm.asm
Stenzek 5b980dafa5 System: Refactor main loop
Reduces JIT exits.
Improves runahead performance.
2023-08-16 01:13:00 +10:00

48 lines
1 KiB
NASM

; SPDX-FileCopyrightText: 2021 Connor McLaughlin <stenzek@gmail.com>
; SPDX-License-Identifier: (GPL-3.0 OR 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