summaryrefslogtreecommitdiffstats
path: root/src/internal/bytealg/indexbyte_mipsx.s
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
commit73df946d56c74384511a194dd01dbe099584fd1a (patch)
treefd0bcea490dd81327ddfbb31e215439672c9a068 /src/internal/bytealg/indexbyte_mipsx.s
parentInitial commit. (diff)
downloadgolang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz
golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/internal/bytealg/indexbyte_mipsx.s')
-rw-r--r--src/internal/bytealg/indexbyte_mipsx.s52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/internal/bytealg/indexbyte_mipsx.s b/src/internal/bytealg/indexbyte_mipsx.s
new file mode 100644
index 0000000..e44440b
--- /dev/null
+++ b/src/internal/bytealg/indexbyte_mipsx.s
@@ -0,0 +1,52 @@
+// Copyright 2018 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.
+
+// +build mips mipsle
+
+#include "go_asm.h"
+#include "textflag.h"
+
+TEXT ·IndexByte(SB),NOSPLIT,$0-20
+ MOVW b_base+0(FP), R1
+ MOVW b_len+4(FP), R2
+ MOVBU c+12(FP), R3 // byte to find
+ ADDU $1, R1, R4 // store base+1 for later
+ ADDU R1, R2 // end
+
+loop:
+ BEQ R1, R2, notfound
+ MOVBU (R1), R5
+ ADDU $1, R1
+ BNE R3, R5, loop
+
+ SUBU R4, R1 // R1 will be one beyond the position we want so remove (base+1)
+ MOVW R1, ret+16(FP)
+ RET
+
+notfound:
+ MOVW $-1, R1
+ MOVW R1, ret+16(FP)
+ RET
+
+TEXT ·IndexByteString(SB),NOSPLIT,$0-16
+ MOVW s_base+0(FP), R1
+ MOVW s_len+4(FP), R2
+ MOVBU c+8(FP), R3 // byte to find
+ ADDU $1, R1, R4 // store base+1 for later
+ ADDU R1, R2 // end
+
+loop:
+ BEQ R1, R2, notfound
+ MOVBU (R1), R5
+ ADDU $1, R1
+ BNE R3, R5, loop
+
+ SUBU R4, R1 // remove (base+1)
+ MOVW R1, ret+12(FP)
+ RET
+
+notfound:
+ MOVW $-1, R1
+ MOVW R1, ret+12(FP)
+ RET