CURRENT PATH:
/
opt
/
golang
/
1.22.0
/
src
/
runtime
/
internal
/
atomic
/
KEMBALI
|
HOME
Upload File Local:
Upload
Upload via URL:
Download
Dir Baru
File Baru
Editing:
atomic_arm64.s
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. #include "go_asm.h" #include "textflag.h" TEXT ·Casint32(SB), NOSPLIT, $0-17 B ·Cas(SB) TEXT ·Casint64(SB), NOSPLIT, $0-25 B ·Cas64(SB) TEXT ·Casuintptr(SB), NOSPLIT, $0-25 B ·Cas64(SB) TEXT ·CasRel(SB), NOSPLIT, $0-17 B ·Cas(SB) TEXT ·Loadint32(SB), NOSPLIT, $0-12 B ·Load(SB) TEXT ·Loadint64(SB), NOSPLIT, $0-16 B ·Load64(SB) TEXT ·Loaduintptr(SB), NOSPLIT, $0-16 B ·Load64(SB) TEXT ·Loaduint(SB), NOSPLIT, $0-16 B ·Load64(SB) TEXT ·Storeint32(SB), NOSPLIT, $0-12 B ·Store(SB) TEXT ·Storeint64(SB), NOSPLIT, $0-16 B ·Store64(SB) TEXT ·Storeuintptr(SB), NOSPLIT, $0-16 B ·Store64(SB) TEXT ·Xaddint32(SB), NOSPLIT, $0-20 B ·Xadd(SB) TEXT ·Xaddint64(SB), NOSPLIT, $0-24 B ·Xadd64(SB) TEXT ·Xadduintptr(SB), NOSPLIT, $0-24 B ·Xadd64(SB) TEXT ·Casp1(SB), NOSPLIT, $0-25 B ·Cas64(SB) // uint32 ·Load(uint32 volatile* addr) TEXT ·Load(SB),NOSPLIT,$0-12 MOVD ptr+0(FP), R0 LDARW (R0), R0 MOVW R0, ret+8(FP) RET // uint8 ·Load8(uint8 volatile* addr) TEXT ·Load8(SB),NOSPLIT,$0-9 MOVD ptr+0(FP), R0 LDARB (R0), R0 MOVB R0, ret+8(FP) RET // uint64 ·Load64(uint64 volatile* addr) TEXT ·Load64(SB),NOSPLIT,$0-16 MOVD ptr+0(FP), R0 LDAR (R0), R0 MOVD R0, ret+8(FP) RET // void *·Loadp(void *volatile *addr) TEXT ·Loadp(SB),NOSPLIT,$0-16 MOVD ptr+0(FP), R0 LDAR (R0), R0 MOVD R0, ret+8(FP) RET // uint32 ·LoadAcq(uint32 volatile* addr) TEXT ·LoadAcq(SB),NOSPLIT,$0-12 B ·Load(SB) // uint64 ·LoadAcquintptr(uint64 volatile* addr) TEXT ·LoadAcq64(SB),NOSPLIT,$0-16 B ·Load64(SB) // uintptr ·LoadAcq64(uintptr volatile* addr) TEXT ·LoadAcquintptr(SB),NOSPLIT,$0-16 B ·Load64(SB) TEXT ·StorepNoWB(SB), NOSPLIT, $0-16 B ·Store64(SB) TEXT ·StoreRel(SB), NOSPLIT, $0-12 B ·Store(SB) TEXT ·StoreRel64(SB), NOSPLIT, $0-16 B ·Store64(SB) TEXT ·StoreReluintptr(SB), NOSPLIT, $0-16 B ·Store64(SB) TEXT ·Store(SB), NOSPLIT, $0-12 MOVD ptr+0(FP), R0 MOVW val+8(FP), R1 STLRW R1, (R0) RET TEXT ·Store8(SB), NOSPLIT, $0-9 MOVD ptr+0(FP), R0 MOVB val+8(FP), R1 STLRB R1, (R0) RET TEXT ·Store64(SB), NOSPLIT, $0-16 MOVD ptr+0(FP), R0 MOVD val+8(FP), R1 STLR R1, (R0) RET // uint32 Xchg(ptr *uint32, new uint32) // Atomically: // old := *ptr; // *ptr = new; // return old; TEXT ·Xchg(SB), NOSPLIT, $0-20 MOVD ptr+0(FP), R0 MOVW new+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop SWPALW R1, (R0), R2 MOVW R2, ret+16(FP) RET load_store_loop: LDAXRW (R0), R2 STLXRW R1, (R0), R3 CBNZ R3, load_store_loop MOVW R2, ret+16(FP) RET // uint64 Xchg64(ptr *uint64, new uint64) // Atomically: // old := *ptr; // *ptr = new; // return old; TEXT ·Xchg64(SB), NOSPLIT, $0-24 MOVD ptr+0(FP), R0 MOVD new+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop SWPALD R1, (R0), R2 MOVD R2, ret+16(FP) RET load_store_loop: LDAXR (R0), R2 STLXR R1, (R0), R3 CBNZ R3, load_store_loop MOVD R2, ret+16(FP) RET // bool Cas(uint32 *ptr, uint32 old, uint32 new) // Atomically: // if(*val == old){ // *val = new; // return 1; // } else // return 0; TEXT ·Cas(SB), NOSPLIT, $0-17 MOVD ptr+0(FP), R0 MOVW old+8(FP), R1 MOVW new+12(FP), R2 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop MOVD R1, R3 CASALW R3, (R0), R2 CMP R1, R3 CSET EQ, R0 MOVB R0, ret+16(FP) RET load_store_loop: LDAXRW (R0), R3 CMPW R1, R3 BNE ok STLXRW R2, (R0), R3 CBNZ R3, load_store_loop ok: CSET EQ, R0 MOVB R0, ret+16(FP) RET // bool ·Cas64(uint64 *ptr, uint64 old, uint64 new) // Atomically: // if(*val == old){ // *val = new; // return 1; // } else { // return 0; // } TEXT ·Cas64(SB), NOSPLIT, $0-25 MOVD ptr+0(FP), R0 MOVD old+8(FP), R1 MOVD new+16(FP), R2 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop MOVD R1, R3 CASALD R3, (R0), R2 CMP R1, R3 CSET EQ, R0 MOVB R0, ret+24(FP) RET load_store_loop: LDAXR (R0), R3 CMP R1, R3 BNE ok STLXR R2, (R0), R3 CBNZ R3, load_store_loop ok: CSET EQ, R0 MOVB R0, ret+24(FP) RET // uint32 xadd(uint32 volatile *ptr, int32 delta) // Atomically: // *val += delta; // return *val; TEXT ·Xadd(SB), NOSPLIT, $0-20 MOVD ptr+0(FP), R0 MOVW delta+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop LDADDALW R1, (R0), R2 ADD R1, R2 MOVW R2, ret+16(FP) RET load_store_loop: LDAXRW (R0), R2 ADDW R2, R1, R2 STLXRW R2, (R0), R3 CBNZ R3, load_store_loop MOVW R2, ret+16(FP) RET // uint64 Xadd64(uint64 volatile *ptr, int64 delta) // Atomically: // *val += delta; // return *val; TEXT ·Xadd64(SB), NOSPLIT, $0-24 MOVD ptr+0(FP), R0 MOVD delta+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop LDADDALD R1, (R0), R2 ADD R1, R2 MOVD R2, ret+16(FP) RET load_store_loop: LDAXR (R0), R2 ADD R2, R1, R2 STLXR R2, (R0), R3 CBNZ R3, load_store_loop MOVD R2, ret+16(FP) RET TEXT ·Xchgint32(SB), NOSPLIT, $0-20 B ·Xchg(SB) TEXT ·Xchgint64(SB), NOSPLIT, $0-24 B ·Xchg64(SB) TEXT ·Xchguintptr(SB), NOSPLIT, $0-24 B ·Xchg64(SB) TEXT ·And8(SB), NOSPLIT, $0-9 MOVD ptr+0(FP), R0 MOVB val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop MVN R1, R2 LDCLRALB R2, (R0), R3 RET load_store_loop: LDAXRB (R0), R2 AND R1, R2 STLXRB R2, (R0), R3 CBNZ R3, load_store_loop RET TEXT ·Or8(SB), NOSPLIT, $0-9 MOVD ptr+0(FP), R0 MOVB val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop LDORALB R1, (R0), R2 RET load_store_loop: LDAXRB (R0), R2 ORR R1, R2 STLXRB R2, (R0), R3 CBNZ R3, load_store_loop RET // func And(addr *uint32, v uint32) TEXT ·And(SB), NOSPLIT, $0-12 MOVD ptr+0(FP), R0 MOVW val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop MVN R1, R2 LDCLRALW R2, (R0), R3 RET load_store_loop: LDAXRW (R0), R2 AND R1, R2 STLXRW R2, (R0), R3 CBNZ R3, load_store_loop RET // func Or(addr *uint32, v uint32) TEXT ·Or(SB), NOSPLIT, $0-12 MOVD ptr+0(FP), R0 MOVW val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop LDORALW R1, (R0), R2 RET load_store_loop: LDAXRW (R0), R2 ORR R1, R2 STLXRW R2, (R0), R3 CBNZ R3, load_store_loop RET // func Or32(addr *uint32, v uint32) old uint32 TEXT ·Or32(SB), NOSPLIT, $0-20 MOVD ptr+0(FP), R0 MOVW val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop LDORALW R1, (R0), R2 MOVD R2, ret+16(FP) RET load_store_loop: LDAXRW (R0), R2 ORR R1, R2, R3 STLXRW R3, (R0), R4 CBNZ R4, load_store_loop MOVD R2, ret+16(FP) RET // func And32(addr *uint32, v uint32) old uint32 TEXT ·And32(SB), NOSPLIT, $0-20 MOVD ptr+0(FP), R0 MOVW val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop MVN R1, R2 LDCLRALW R2, (R0), R3 MOVD R3, ret+16(FP) RET load_store_loop: LDAXRW (R0), R2 AND R1, R2, R3 STLXRW R3, (R0), R4 CBNZ R4, load_store_loop MOVD R2, ret+16(FP) RET // func Or64(addr *uint64, v uint64) old uint64 TEXT ·Or64(SB), NOSPLIT, $0-24 MOVD ptr+0(FP), R0 MOVD val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop LDORALD R1, (R0), R2 MOVD R2, ret+16(FP) RET load_store_loop: LDAXR (R0), R2 ORR R1, R2, R3 STLXR R3, (R0), R4 CBNZ R4, load_store_loop MOVD R2, ret+16(FP) RET // func And64(addr *uint64, v uint64) old uint64 TEXT ·And64(SB), NOSPLIT, $0-24 MOVD ptr+0(FP), R0 MOVD val+8(FP), R1 MOVBU internal∕cpu·ARM64+const_offsetARM64HasATOMICS(SB), R4 CBZ R4, load_store_loop MVN R1, R2 LDCLRALD R2, (R0), R3 MOVD R3, ret+16(FP) RET load_store_loop: LDAXR (R0), R2 AND R1, R2, R3 STLXR R3, (R0), R4 CBNZ R4, load_store_loop MOVD R2, ret+16(FP) RET // func Anduintptr(addr *uintptr, v uintptr) old uintptr TEXT ·Anduintptr(SB), NOSPLIT, $0-24 B ·And64(SB) // func Oruintptr(addr *uintptr, v uintptr) old uintptr TEXT ·Oruintptr(SB), NOSPLIT, $0-24 B ·Or64(SB)
SIMPAN
BATAL