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authorBobby Bingham <koorogi@koorogi.info>2013-10-05 05:13:18 -0500
committerBobby Bingham <koorogi@koorogi.info>2014-02-23 16:15:54 -0600
commit3a3c813e08d808224c12fd0e9104aeff7c45c9a7 (patch)
tree508b28c42438615d711afcb9b44d7b0e0842f28d /src/unistd
parentd05aaedaabd4f5472c233dbbd1ff4bb9c9c99794 (diff)
downloadmusl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.tar.gz
superh port
Diffstat (limited to 'src/unistd')
-rw-r--r--src/unistd/superh/pipe.s27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/unistd/superh/pipe.s b/src/unistd/superh/pipe.s
new file mode 100644
index 00000000..d865ae3a
--- /dev/null
+++ b/src/unistd/superh/pipe.s
@@ -0,0 +1,27 @@
+.global pipe
+.type pipe, @function
+pipe:
+ mov #42, r3
+ trapa #17
+
+ ! work around hardware bug
+ or r0, r0
+ or r0, r0
+ or r0, r0
+ or r0, r0
+ or r0, r0
+
+ cmp/pz r0
+ bt 1f
+
+ mov.l L1, r1
+ braf r1
+ mov r0, r4
+
+1: mov.l r0, @(0,r4)
+ mov.l r1, @(4,r4)
+ rts
+ mov #0, r0
+
+.align 2
+L1: .long __syscall_ret@PLT-(1b-.)