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[Qemu-devel] [PATCH 1/2] target-arm: Refactor handling of VQDMULL
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 1/2] target-arm: Refactor handling of VQDMULL |
Date: |
Fri, 11 Feb 2011 12:26:47 +0000 |
Refactor the handling of VQDMULL so that it is dealt with in
its own if() case rather than together with the accumulating
instructions.
Signed-off-by: Peter Maydell <address@hidden>
---
target-arm/translate.c | 16 ++++++----------
1 files changed, 6 insertions(+), 10 deletions(-)
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 3087a5d..cf5c3f0 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -5129,16 +5129,16 @@ static int disas_neon_data_insn(CPUState * env,
DisasContext *s, uint32_t insn)
default: /* 15 is RESERVED. */
return 1;
}
- if (op == 5 || op == 13 || (op >= 8 && op <= 11)) {
+ if (op == 13) {
+ /* VQDMULL */
+ gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
+ neon_store_reg64(cpu_V0, rd + pass);
+ } else if (op == 5 || (op >= 8 && op <= 11)) {
/* Accumulate. */
if (op == 10 || op == 11) {
gen_neon_negl(cpu_V0, size);
}
-
- if (op != 13) {
- neon_load_reg64(cpu_V1, rd + pass);
- }
-
+ neon_load_reg64(cpu_V1, rd + pass);
switch (op) {
case 5: case 8: case 10: /* VABAL, VMLAL, VMLSL */
gen_neon_addl(size);
@@ -5147,10 +5147,6 @@ static int disas_neon_data_insn(CPUState * env,
DisasContext *s, uint32_t insn)
gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
gen_neon_addl_saturate(cpu_V0, cpu_V1, size);
break;
- /* Fall through. */
- case 13: /* VQDMULL */
- gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
- break;
default:
abort();
}
--
1.7.1