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author | Mystery Man <unknown@mandriva.org> | 2003-05-06 13:11:49 +0000 |
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committer | Mystery Man <unknown@mandriva.org> | 2003-05-06 13:11:49 +0000 |
commit | 3f5d21d90abbd16f16ab69aec1e1a1853a93fd18 (patch) | |
tree | 3d9f5a32303a8d97b4b457949e64bb42b4850ea9 /mdk-stage1/dietlibc/alpha/__testandset.S | |
parent | 327bd24f8e4291bd1882de1990dd7339f781a9cb (diff) | |
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This commit was manufactured by cvs2svn to create tag 'R9_0-AMD64'.R9_0-AMD64
Diffstat (limited to 'mdk-stage1/dietlibc/alpha/__testandset.S')
-rw-r--r-- | mdk-stage1/dietlibc/alpha/__testandset.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/alpha/__testandset.S b/mdk-stage1/dietlibc/alpha/__testandset.S new file mode 100644 index 000000000..c5ef81241 --- /dev/null +++ b/mdk-stage1/dietlibc/alpha/__testandset.S @@ -0,0 +1,11 @@ +.text +.align 2 +.global __testandsets +.type __testandsets,@function +__testandset: + ldq_l $0, 0($16) /* load lock */ + bne $0,1f /* ok there is a lock... */ + lda $0, 1($31) /* load a 1 to register 0 */ + stq_c $0, 0($16) /* write lock is locked :) */ + beq $0,__testandset /* oops someone changed MY lock */ +1: ret $31, ($26), 0x01 /* return */ |