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[Qemu-devel] [PATCH v2 7/8] target-mips: use DSP unions for reduction ad
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 7/8] target-mips: use DSP unions for reduction add instructions |
Date: |
Wed, 9 Jan 2013 16:27:44 +0100 |
Signed-off-by: Aurelien Jarno <address@hidden>
---
target-mips/dsp_helper.c | 32 +++++++++++++++-----------------
1 file changed, 15 insertions(+), 17 deletions(-)
diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c
index 1bc77a2..ea7a99f 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;
- for (i = 0; i < 8; i++) {
- rs_t[i] = (rs >> (8 * i)) & MIPSDSP_Q0;
- temp += (uint64_t)rs_t[i];
+ ds.ul[0] = rs;
+ for (i = 0 ; i < 8 ; i++) {
+ ret += ds.ub[i];
}
-
- return temp;
+ return ret;
}
#endif
--
1.7.10.4
- [Qemu-devel] [PATCH v2 0/8] target-mips: DSP ASE fixes and cleanup, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 3/8] target-mips: generate a reserved instruction exception on CPU without DSP, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 1/8] target-mips: fix DSP loads with rd = 0, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 4/8] target-mips: add unions to access DSP elements, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 7/8] target-mips: use DSP unions for reduction add instructions,
Aurelien Jarno <=
- [Qemu-devel] [PATCH v2 8/8] target-mips: implement DSP (d)append sub-class with TCG, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 5/8] target-mips: use DSP unions for binary DSP operators, Aurelien Jarno, 2013/01/09
[Qemu-devel] [PATCH v2 6/8] target-mips: use DSP unions for unary DSP operators, Aurelien Jarno, 2013/01/09