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authorCharles.Forsyth <devnull@localhost>2006-12-22 17:07:39 +0000
committerCharles.Forsyth <devnull@localhost>2006-12-22 17:07:39 +0000
commit37da2899f40661e3e9631e497da8dc59b971cbd0 (patch)
treecbc6d4680e347d906f5fa7fca73214418741df72 /libkern/strchr-68000.s
parent54bc8ff236ac10b3eaa928fd6bcfc0cdb2ba46ae (diff)
20060303a
Diffstat (limited to 'libkern/strchr-68000.s')
-rw-r--r--libkern/strchr-68000.s27
1 files changed, 27 insertions, 0 deletions
diff --git a/libkern/strchr-68000.s b/libkern/strchr-68000.s
new file mode 100644
index 00000000..a5d4be2c
--- /dev/null
+++ b/libkern/strchr-68000.s
@@ -0,0 +1,27 @@
+ TEXT strchr(SB), $0
+
+ MOVL s+0(FP), A0
+ MOVB c+7(FP), R2
+ BEQ null
+
+l:
+ MOVB (A0)+, R1
+ BEQ out
+ CMPB R1, R2
+ BNE l
+
+ MOVL A0, R0
+ ADDL $-1, R0
+ RTS
+
+out:
+ CLRL R0
+ RTS
+
+null:
+ TSTB (A0)+
+ BNE null
+
+ MOVL A0, R0
+ ADDL $-1, R0
+ RTS