58 lines
1.3 KiB
ArmAsm
58 lines
1.3 KiB
ArmAsm
|
// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
|
||
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
||
|
|
|
||
|
|
// Differential kernel for the arm64 whole-vector moves between a general
|
||
|
|
// register and an arranged vector (VMOV/VDUP Rs, Vd.<T>), the two-operand
|
||
|
|
// accumulate spellings VADD/VSUB Vm, Vn, and the toolchain-reserved
|
||
|
|
// R18_PLATFORM register name. Every function is byte-compared against
|
||
|
|
// go tool asm.
|
||
|
|
|
||
|
|
#include "textflag.h"
|
||
|
|
|
||
|
|
// func gpIntoVector()
|
||
|
|
TEXT ·gpIntoVector(SB), NOSPLIT, $0-0
|
||
|
|
VMOV R1, V2.B8
|
||
|
|
VMOV R3, V4.B16
|
||
|
|
VMOV R5, V6.H4
|
||
|
|
VMOV R7, V8.H8
|
||
|
|
VMOV R9, V10.S2
|
||
|
|
VMOV R11, V12.S4
|
||
|
|
VMOV R13, V14.D2
|
||
|
|
VDUP R15, V16.B8
|
||
|
|
VDUP R17, V18.B16
|
||
|
|
VDUP R19, V20.H8
|
||
|
|
VDUP R21, V22.S4
|
||
|
|
VDUP R23, V24.D2
|
||
|
|
RET
|
||
|
|
|
||
|
|
// func simdAccumulate()
|
||
|
|
TEXT ·simdAccumulate(SB), NOSPLIT, $0-0
|
||
|
|
VADD V7, V8
|
||
|
|
VSUB V7, V8
|
||
|
|
VADD V1, V2
|
||
|
|
VSUB V30, V31
|
||
|
|
VADD V0.B16, V1.B16, V2.B16
|
||
|
|
VSUB V0.S4, V1.S4, V2.S4
|
||
|
|
RET
|
||
|
|
|
||
|
|
// func truncMove()
|
||
|
|
TEXT ·truncMove(SB), NOSPLIT, $0-0
|
||
|
|
MOVB R3, R4
|
||
|
|
MOVH R5, R6
|
||
|
|
MOVW R9, R10
|
||
|
|
MOVBU R3, R4
|
||
|
|
MOVHU R3, R4
|
||
|
|
MOVWU R3, R4
|
||
|
|
MOVD R3, R4
|
||
|
|
RET
|
||
|
|
|
||
|
|
// func platformRegister()
|
||
|
|
TEXT ·platformRegister(SB), NOSPLIT, $0-0
|
||
|
|
MOVD R18_PLATFORM, R3
|
||
|
|
MOVW R18_PLATFORM, R4
|
||
|
|
MOVD R3, R18_PLATFORM
|
||
|
|
MOVD 0x68(R18_PLATFORM), R5
|
||
|
|
MOVD R5, 0x68(R18_PLATFORM)
|
||
|
|
MOVW 8(R18_PLATFORM), R6
|
||
|
|
RET
|