From 18269c0fd4db9bec2668f895f21d742486ccb90f Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Wed, 3 Dec 2008 03:07:00 -0800 Subject: sparc: prepare lib/ for unification Identical named files renamed to _32.S Refactored Makefile to prepare for unification. Linking order was altered slightly - but this is a lib.a file so it should not matter. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc/lib/strncmp_32.S | 118 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 arch/sparc/lib/strncmp_32.S (limited to 'arch/sparc/lib/strncmp_32.S') diff --git a/arch/sparc/lib/strncmp_32.S b/arch/sparc/lib/strncmp_32.S new file mode 100644 index 000000000000..494ec664537a --- /dev/null +++ b/arch/sparc/lib/strncmp_32.S @@ -0,0 +1,118 @@ +/* + * strncmp.S: Hand optimized Sparc assembly of GCC output from GNU libc + * generic strncmp routine. + */ + + .text + .align 4 + .global __strncmp, strncmp +__strncmp: +strncmp: + mov %o0, %g3 + mov 0, %o3 + + cmp %o2, 3 + ble 7f + mov 0, %g2 + + sra %o2, 2, %o4 + ldub [%g3], %o3 + +0: + ldub [%o1], %g2 + add %g3, 1, %g3 + and %o3, 0xff, %o0 + + cmp %o0, 0 + be 8f + add %o1, 1, %o1 + + cmp %o0, %g2 + be,a 1f + ldub [%g3], %o3 + + retl + sub %o0, %g2, %o0 + +1: + ldub [%o1], %g2 + add %g3,1, %g3 + and %o3, 0xff, %o0 + + cmp %o0, 0 + be 8f + add %o1, 1, %o1 + + cmp %o0, %g2 + be,a 1f + ldub [%g3], %o3 + + retl + sub %o0, %g2, %o0 + +1: + ldub [%o1], %g2 + add %g3, 1, %g3 + and %o3, 0xff, %o0 + + cmp %o0, 0 + be 8f + add %o1, 1, %o1 + + cmp %o0, %g2 + be,a 1f + ldub [%g3], %o3 + + retl + sub %o0, %g2, %o0 + +1: + ldub [%o1], %g2 + add %g3, 1, %g3 + and %o3, 0xff, %o0 + + cmp %o0, 0 + be 8f + add %o1, 1, %o1 + + cmp %o0, %g2 + be 1f + add %o4, -1, %o4 + + retl + sub %o0, %g2, %o0 + +1: + + cmp %o4, 0 + bg,a 0b + ldub [%g3], %o3 + + b 7f + and %o2, 3, %o2 + +9: + ldub [%o1], %g2 + add %g3, 1, %g3 + and %o3, 0xff, %o0 + + cmp %o0, 0 + be 8f + add %o1, 1, %o1 + + cmp %o0, %g2 + be 7f + add %o2, -1, %o2 + +8: + retl + sub %o0, %g2, %o0 + +7: + cmp %o2, 0 + bg,a 9b + ldub [%g3], %o3 + + and %g2, 0xff, %o0 + retl + sub %o3, %o0, %o0 -- cgit v1.2.3