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[Qemu-devel] [PATCH 08/13] alpha: Expand msk*l inline.
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 08/13] alpha: Expand msk*l inline. |
Date: |
Fri, 11 Dec 2009 11:51:45 -0800 |
Similar in difficulty to ext*l, already expanded.
Signed-off-by: Richard Henderson <address@hidden>
---
target-alpha/helper.h | 4 ----
target-alpha/op_helper.c | 20 --------------------
target-alpha/translate.c | 38 ++++++++++++++++++++++++++++++--------
3 files changed, 30 insertions(+), 32 deletions(-)
diff --git a/target-alpha/helper.h b/target-alpha/helper.h
index 8004aa1..8db73b0 100644
--- a/target-alpha/helper.h
+++ b/target-alpha/helper.h
@@ -17,12 +17,8 @@ DEF_HELPER_1(ctpop, i64, i64)
DEF_HELPER_1(ctlz, i64, i64)
DEF_HELPER_1(cttz, i64, i64)
-DEF_HELPER_2(mskbl, i64, i64, i64)
-DEF_HELPER_2(mskwl, i64, i64, i64)
-DEF_HELPER_2(mskll, i64, i64, i64)
DEF_HELPER_2(zap, i64, i64, i64)
DEF_HELPER_2(zapnot, i64, i64, i64)
-DEF_HELPER_2(mskql, i64, i64, i64)
DEF_HELPER_2(mskwh, i64, i64, i64)
DEF_HELPER_2(inswh, i64, i64, i64)
DEF_HELPER_2(msklh, i64, i64, i64)
diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c
index d2e43a5..591adbd 100644
--- a/target-alpha/op_helper.c
+++ b/target-alpha/op_helper.c
@@ -175,21 +175,6 @@ static inline uint64_t byte_zap(uint64_t op, uint8_t mskb)
return op & ~mask;
}
-uint64_t helper_mskbl(uint64_t val, uint64_t mask)
-{
- return byte_zap(val, 0x01 << (mask & 7));
-}
-
-uint64_t helper_mskwl(uint64_t val, uint64_t mask)
-{
- return byte_zap(val, 0x03 << (mask & 7));
-}
-
-uint64_t helper_mskll(uint64_t val, uint64_t mask)
-{
- return byte_zap(val, 0x0F << (mask & 7));
-}
-
uint64_t helper_zap(uint64_t val, uint64_t mask)
{
return byte_zap(val, mask);
@@ -200,11 +185,6 @@ uint64_t helper_zapnot(uint64_t val, uint64_t mask)
return byte_zap(val, ~mask);
}
-uint64_t helper_mskql(uint64_t val, uint64_t mask)
-{
- return byte_zap(val, 0xFF << (mask & 7));
-}
-
uint64_t helper_mskwh(uint64_t val, uint64_t mask)
{
return byte_zap(val, (0x03 << (mask & 7)) >> 8);
diff --git a/target-alpha/translate.c b/target-alpha/translate.c
index 631b31f..3e50d27 100644
--- a/target-alpha/translate.c
+++ b/target-alpha/translate.c
@@ -655,6 +655,32 @@ static inline void gen_ins_l(int ra, int rb, int rc, int
islit,
}
}
+/* MSKBL, MSKWL, MSKLL, MSKQL */
+static inline void gen_msk_l(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
+{
+ if (unlikely(rc == 31))
+ return;
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else if (islit) {
+ gen_zapnoti (cpu_ir[rc], cpu_ir[ra], ~(byte_mask << (lit & 7)));
+ } else {
+ TCGv shift = tcg_temp_new();
+ TCGv mask = tcg_temp_new();
+
+ tcg_gen_andi_i64(shift, cpu_ir[rb], 7);
+ tcg_gen_shli_i64(shift, shift, 3);
+ tcg_gen_movi_i64(mask, zapnot_mask (byte_mask));
+ tcg_gen_shl_i64(mask, mask, shift);
+
+ tcg_gen_andc_i64(cpu_ir[rc], cpu_ir[ra], mask);
+
+ tcg_temp_free(mask);
+ tcg_temp_free(shift);
+ }
+}
+
/* Code to call arith3 helpers */
#define ARITH3(name) \
static inline void glue(gen_, name)(int ra, int rb, int rc, int islit,\
@@ -686,10 +712,6 @@ ARITH3(addlv)
ARITH3(sublv)
ARITH3(addqv)
ARITH3(subqv)
-ARITH3(mskbl)
-ARITH3(mskwl)
-ARITH3(mskll)
-ARITH3(mskql)
ARITH3(mskwh)
ARITH3(inswh)
ARITH3(msklh)
@@ -1314,7 +1336,7 @@ static inline int translate_one(DisasContext *ctx,
uint32_t insn)
switch (fn7) {
case 0x02:
/* MSKBL */
- gen_mskbl(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0x01);
break;
case 0x06:
/* EXTBL */
@@ -1326,7 +1348,7 @@ static inline int translate_one(DisasContext *ctx,
uint32_t insn)
break;
case 0x12:
/* MSKWL */
- gen_mskwl(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0x03);
break;
case 0x16:
/* EXTWL */
@@ -1338,7 +1360,7 @@ static inline int translate_one(DisasContext *ctx,
uint32_t insn)
break;
case 0x22:
/* MSKLL */
- gen_mskll(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x26:
/* EXTLL */
@@ -1358,7 +1380,7 @@ static inline int translate_one(DisasContext *ctx,
uint32_t insn)
break;
case 0x32:
/* MSKQL */
- gen_mskql(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0xff);
break;
case 0x34:
/* SRL */
- [Qemu-devel] [PATCH 01/13] alpha: Implement missing MVI instructions., (continued)
- [Qemu-devel] [PATCH 01/13] alpha: Implement missing MVI instructions., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 03/13] alpha: Expand zap/zapnot with immediate inline., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 09/13] alpha: Expand msk*h inline., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 11/13] alpha: Fix FMOV., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 06/13] alpha: Implement RD/WRUNIQUE in the translator, Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 10/13] alpha: Expand ins*h inline., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 05/13] alpha: Fix fbcond branch offset., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 13/13] alpha: Implement fp branch/cmov inline., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 07/13] alpha: Expand ins*l inline., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 04/13] alpha: Rewrite gen_ext_[hl] in terms of zapnot., Richard Henderson, 2009/12/11
- [Qemu-devel] [PATCH 08/13] alpha: Expand msk*l inline.,
Richard Henderson <=
- [Qemu-devel] [PATCH 12/13] alpha: Fix double log_cpu_state., Richard Henderson, 2009/12/11