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authorAurelien Jarno <aurelien@aurel32.net>2013-01-01 18:02:23 +0100
committerAurelien Jarno <aurelien@aurel32.net>2013-01-31 23:30:16 +0100
commit0a16c79cc4087838ae5f2bc9554d91db2cbb2503 (patch)
treec04384a73480354248229b3bb8f3adbe7d547c7a /target-mips/dsp_helper.c
parent75d012ac7f5c92ac5ee2c1dee8c7a7fbeb724e3c (diff)
downloadqemu-arm-0a16c79cc4087838ae5f2bc9554d91db2cbb2503.tar.gz
target-mips: use DSP unions for reduction add instructions
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-mips/dsp_helper.c')
-rw-r--r--target-mips/dsp_helper.c30
1 files changed, 14 insertions, 16 deletions
diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c
index bcc3885601..f5de2ca8e5 100644
--- a/target-mips/dsp_helper.c
+++ b/target-mips/dsp_helper.c
@@ -1352,31 +1352,29 @@ target_ulong helper_modsub(target_ulong rs, target_ulong rt)
target_ulong helper_raddu_w_qb(target_ulong rs)
{
- uint8_t rs3, rs2, rs1, rs0;
- uint16_t temp;
-
- MIPSDSP_SPLIT32_8(rs, rs3, rs2, rs1, rs0);
-
- temp = (uint16_t)rs3 + (uint16_t)rs2 + (uint16_t)rs1 + (uint16_t)rs0;
+ target_ulong ret = 0;
+ DSP32Value ds;
+ unsigned int i;
- return (target_ulong)temp;
+ ds.uw[0] = rs;
+ for (i = 0; i < 4; i++) {
+ ret += ds.ub[i];
+ }
+ return ret;
}
#if defined(TARGET_MIPS64)
target_ulong helper_raddu_l_ob(target_ulong rs)
{
- int i;
- uint16_t rs_t[8];
- uint64_t temp;
-
- temp = 0;
+ target_ulong ret = 0;
+ DSP64Value ds;
+ unsigned int i;
+ ds.ul[0] = rs;
for (i = 0; i < 8; i++) {
- rs_t[i] = (rs >> (8 * i)) & MIPSDSP_Q0;
- temp += (uint64_t)rs_t[i];
+ ret += ds.ub[i];
}
-
- return temp;
+ return ret;
}
#endif