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authorKatie Hockman <katie@golang.org>2020-12-14 10:03:05 -0500
committerKatie Hockman <katie@golang.org>2020-12-14 10:06:13 -0500
commit0345ede87ee12698988973884cfc0fd3d499dffd (patch)
tree7123cff141ee5661208d2f5f437b8f5252ac7f6a /src/internal/cpu/cpu_arm64.s
parent4651d6b267818b0e0d128a5443289717c4bb8cbc (diff)
parent0a02371b0576964e81c3b40d328db9a3ef3b031b (diff)
downloadgo-0345ede87ee12698988973884cfc0fd3d499dffd.tar.xz
[dev.fuzz] all: merge master into dev.fuzz
Change-Id: I5d8c8329ccc9d747bd81ade6b1cb7cb8ae2e94b2
Diffstat (limited to 'src/internal/cpu/cpu_arm64.s')
-rw-r--r--src/internal/cpu/cpu_arm64.s18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/internal/cpu/cpu_arm64.s b/src/internal/cpu/cpu_arm64.s
new file mode 100644
index 0000000000..d6e7f44373
--- /dev/null
+++ b/src/internal/cpu/cpu_arm64.s
@@ -0,0 +1,18 @@
+// Copyright 2020 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 "textflag.h"
+
+// func getisar0() uint64
+TEXT ·getisar0(SB),NOSPLIT,$0
+ // get Instruction Set Attributes 0 into R0
+ MRS ID_AA64ISAR0_EL1, R0
+ MOVD R0, ret+0(FP)
+ RET
+
+// func getMIDR() uint64
+TEXT ·getMIDR(SB), NOSPLIT, $0-8
+ MRS MIDR_EL1, R0
+ MOVD R0, ret+0(FP)
+ RET