aboutsummaryrefslogtreecommitdiff
path: root/target-alpha
diff options
context:
space:
mode:
authorRichard Henderson <rth@twiddle.net>2009-12-11 11:51:45 -0800
committerAurelien Jarno <aurelien@aurel32.net>2009-12-13 21:36:21 +0100
commit14ab16342990d7400da5d889f3594bd498fa2e31 (patch)
tree19e8bb6f1365bb469529971f2fa0d9d34ebf02e8 /target-alpha
parent248c42f3939368e4b799947bdd31a36ff949e11a (diff)
downloadqemu-14ab16342990d7400da5d889f3594bd498fa2e31.zip
qemu-14ab16342990d7400da5d889f3594bd498fa2e31.tar.gz
qemu-14ab16342990d7400da5d889f3594bd498fa2e31.tar.bz2
target-alpha: Expand msk*l inline.
Similar in difficulty to ext*l, already expanded. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-alpha')
-rw-r--r--target-alpha/helper.h4
-rw-r--r--target-alpha/op_helper.c20
-rw-r--r--target-alpha/translate.c38
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 5cb6203..ebab95d 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 */