diff options
Diffstat (limited to 'runtime/arm/i64_smod.S')
| -rw-r--r-- | runtime/arm/i64_smod.S | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/runtime/arm/i64_smod.S b/runtime/arm/i64_smod.S index b109ecc3..34c33c1c 100644 --- a/runtime/arm/i64_smod.S +++ b/runtime/arm/i64_smod.S @@ -17,7 +17,7 @@ @ * Neither the name of the <organization> nor the @ names of its contributors may be used to endorse or promote products @ derived from this software without specific prior written permission. -@ +@ @ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS @ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT @ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR @@ -37,25 +37,25 @@ #include "sysdeps.h" @@@ Signed modulus - + FUNCTION(__i64_smod) push {r4, r5, r6, r7, r8, r10, lr} - ASR r4, r1, #31 @ r4 = sign of N - ASR r5, r3, #31 @ r5 = sign of D + ASR r4, Reg0HI, #31 @ r4 = sign of N + ASR r5, Reg1HI, #31 @ r5 = sign of D MOV r10, r4 @ r10 = sign of result - EOR r0, r0, r4 @ take absolute value of N - EOR r1, r1, r4 @ N = (N ^ (N >>s 31)) - (N >>s 31) - subs r0, r0, r4 - sbc r1, r1, r4 - EOR r2, r2, r5 @ take absolute value of D - EOR r3, r3, r5 - subs r2, r2, r5 - sbc r3, r3, r5 + EOR Reg0LO, Reg0LO, r4 @ take absolute value of N + EOR Reg0HI, Reg0HI, r4 @ N = (N ^ (N >>s 31)) - (N >>s 31) + subs Reg0LO, Reg0LO, r4 + sbc Reg0HI, Reg0HI, r4 + EOR Reg1LO, Reg1LO, r5 @ take absolute value of D + EOR Reg1HI, Reg1HI, r5 + subs Reg1LO, Reg1LO, r5 + sbc Reg1HI, Reg1HI, r5 bl __i64_udivmod @ do unsigned division - EOR r0, r0, r10 @ apply expected sign - EOR r1, r1, r10 - subs r0, r0, r10 - sbc r1, r1, r10 + EOR Reg0LO, Reg0LO, r10 @ apply expected sign + EOR Reg0HI, Reg0HI, r10 + subs Reg0LO, Reg0LO, r10 + sbc Reg0HI, Reg0HI, r10 pop {r4, r5, r6, r7, r8, r10, lr} bx lr ENDFUNCTION(__i64_smod) |