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-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