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| author | Bobby Bingham <koorogi@koorogi.info> | 2013-10-05 05:13:18 -0500 |
|---|---|---|
| committer | Bobby Bingham <koorogi@koorogi.info> | 2014-02-23 16:15:54 -0600 |
| commit | 3a3c813e08d808224c12fd0e9104aeff7c45c9a7 (patch) | |
| tree | 508b28c42438615d711afcb9b44d7b0e0842f28d /src/unistd | |
| parent | d05aaedaabd4f5472c233dbbd1ff4bb9c9c99794 (diff) | |
| download | musl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.tar.gz musl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.tar.xz musl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.zip | |
superh port
Diffstat (limited to 'src/unistd')
| -rw-r--r-- | src/unistd/superh/pipe.s | 27 |
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-.) |