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[Qemu-devel] [PATCH 071/126] target-s390: Convert FP DIVIDE
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 071/126] target-s390: Convert FP DIVIDE |
Date: |
Sun, 9 Sep 2012 14:05:29 -0700 |
Signed-off-by: Richard Henderson <address@hidden>
---
target-s390x/fpu_helper.c | 68 ++++++++++++++--------------------------------
target-s390x/helper.h | 8 ++----
target-s390x/insn-data.def | 5 ++++
target-s390x/translate.c | 41 +++++++++++++---------------
4 files changed, 47 insertions(+), 75 deletions(-)
diff --git a/target-s390x/fpu_helper.c b/target-s390x/fpu_helper.c
index 4dac096..aca3b77 100644
--- a/target-s390x/fpu_helper.c
+++ b/target-s390x/fpu_helper.c
@@ -240,28 +240,31 @@ uint64_t HELPER(sxb)(CPUS390XState *env, uint64_t ah,
uint64_t al,
return RET128(ret);
}
-/* 32-bit FP division RR */
-void HELPER(debr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
+/* 32-bit FP division */
+uint64_t HELPER(deb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
{
- env->fregs[f1].l.upper = float32_div(env->fregs[f1].l.upper,
- env->fregs[f2].l.upper,
- &env->fpu_status);
+ float32 ret = float32_div(f1, f2, &env->fpu_status);
+ handle_exceptions(env, GETPC());
+ return ret;
}
-/* 128-bit FP division RR */
-void HELPER(dxbr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
+/* 64-bit FP division */
+uint64_t HELPER(ddb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
{
- CPU_QuadU v1;
- CPU_QuadU v2;
- CPU_QuadU res;
+ float64 ret = float64_div(f1, f2, &env->fpu_status);
+ handle_exceptions(env, GETPC());
+ return ret;
+}
- v1.ll.upper = env->fregs[f1].ll;
- v1.ll.lower = env->fregs[f1 + 2].ll;
- v2.ll.upper = env->fregs[f2].ll;
- v2.ll.lower = env->fregs[f2 + 2].ll;
- res.q = float128_div(v1.q, v2.q, &env->fpu_status);
- env->fregs[f1].ll = res.ll.upper;
- env->fregs[f1 + 2].ll = res.ll.lower;
+/* 128-bit FP division */
+uint64_t HELPER(dxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
+ uint64_t bh, uint64_t bl)
+{
+ float128 ret = float128_div(make_float128(ah, al),
+ make_float128(bh, bl),
+ &env->fpu_status);
+ handle_exceptions(env, GETPC());
+ return RET128(ret);
}
/* 64-bit FP multiplication RR */
@@ -400,18 +403,6 @@ uint32_t HELPER(lcxbr)(CPUS390XState *env, uint32_t f1,
uint32_t f2)
return set_cc_nz_f128(x1.q);
}
-/* 32-bit FP division RM */
-void HELPER(deb)(CPUS390XState *env, uint32_t f1, uint32_t val)
-{
- float32 v1 = env->fregs[f1].l.upper;
- CPU_FloatU v2;
-
- v2.l = val;
- HELPER_LOG("%s: dividing 0x%d from f%d by 0x%d\n", __func__,
- v1, f1, v2.f);
- env->fregs[f1].l.upper = float32_div(v1, v2.f, &env->fpu_status);
-}
-
/* 32-bit FP multiplication RM */
void HELPER(meeb)(CPUS390XState *env, uint32_t f1, uint32_t val)
{
@@ -463,18 +454,6 @@ void HELPER(mdb)(CPUS390XState *env, uint32_t f1, uint64_t
a2)
env->fregs[f1].d = float64_mul(v1, v2.d, &env->fpu_status);
}
-/* 64-bit FP division RM */
-void HELPER(ddb)(CPUS390XState *env, uint32_t f1, uint64_t a2)
-{
- float64 v1 = env->fregs[f1].d;
- CPU_DoubleU v2;
-
- v2.ll = cpu_ldq_data(env, a2);
- HELPER_LOG("%s: dividing 0x%lx from f%d by 0x%ld\n", __func__,
- v1, f1, v2.d);
- env->fregs[f1].d = float64_div(v1, v2.d, &env->fpu_status);
-}
-
static void set_round_mode(CPUS390XState *env, int m3)
{
switch (m3) {
@@ -612,13 +591,6 @@ void HELPER(meebr)(CPUS390XState *env, uint32_t f1,
uint32_t f2)
&env->fpu_status);
}
-/* 64-bit FP division RR */
-void HELPER(ddbr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
-{
- env->fregs[f1].d = float64_div(env->fregs[f1].d, env->fregs[f2].d,
- &env->fpu_status);
-}
-
/* 64-bit FP multiply and add RM */
void HELPER(madb)(CPUS390XState *env, uint32_t f1, uint64_t a2, uint32_t f3)
{
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index b3f5a40..b0b4809 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -53,8 +53,9 @@ DEF_HELPER_5(axb, i64, env, i64, i64, i64, i64)
DEF_HELPER_3(seb, i64, env, i64, i64)
DEF_HELPER_3(sdb, i64, env, i64, i64)
DEF_HELPER_5(sxb, i64, env, i64, i64, i64, i64)
-DEF_HELPER_3(debr, void, env, i32, i32)
-DEF_HELPER_3(dxbr, void, env, i32, i32)
+DEF_HELPER_3(deb, i64, env, i64, i64)
+DEF_HELPER_3(ddb, i64, env, i64, i64)
+DEF_HELPER_5(dxb, i64, env, i64, i64, i64, i64)
DEF_HELPER_3(mdbr, void, env, i32, i32)
DEF_HELPER_3(mxbr, void, env, i32, i32)
DEF_HELPER_2(ldeb, i64, env, i64)
@@ -69,10 +70,8 @@ DEF_HELPER_3(lpxbr, i32, env, i32, i32)
DEF_HELPER_3(lcebr, i32, env, i32, i32)
DEF_HELPER_3(lcdbr, i32, env, i32, i32)
DEF_HELPER_3(lcxbr, i32, env, i32, i32)
-DEF_HELPER_3(deb, void, env, i32, i32)
DEF_HELPER_3(meeb, void, env, i32, i32)
DEF_HELPER_3(mdb, void, env, i32, i64)
-DEF_HELPER_3(ddb, void, env, i32, i64)
DEF_HELPER_FLAGS_3(ceb, TCG_CALL_PURE, i32, env, i64, i64)
DEF_HELPER_FLAGS_3(cdb, TCG_CALL_PURE, i32, env, i64, i64)
DEF_HELPER_FLAGS_5(cxb, TCG_CALL_PURE, i32, env, i64, i64, i64, i64)
@@ -86,7 +85,6 @@ DEF_HELPER_4(cfebr, i32, env, i32, i32, i32)
DEF_HELPER_4(cfdbr, i32, env, i32, i32, i32)
DEF_HELPER_4(cfxbr, i32, env, i32, i32, i32)
DEF_HELPER_3(meebr, void, env, i32, i32)
-DEF_HELPER_3(ddbr, void, env, i32, i32)
DEF_HELPER_4(madb, void, env, i32, i64, i32)
DEF_HELPER_4(maebr, void, env, i32, i32, i32)
DEF_HELPER_4(madbr, void, env, i32, i32, i32)
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index 9b02904..d6e0a6e 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -167,6 +167,11 @@
/* DIVIDE */
C(0x1d00, DR, RR_a, Z, r1_P32, r2_32s, new_P, r1_P32, divs32, 0)
C(0x5d00, D, RX_a, Z, r1_P32, m2_32s, new_P, r1_P32, divs32, 0)
+ C(0xb30d, DEBR, RRE, Z, e1, e2, new, e1, deb, 0)
+ C(0xb31d, DDBR, RRE, Z, f1_o, f2_o, f1, 0, ddb, 0)
+ C(0xb34d, DXBR, RRE, Z, 0, x2_o, x1, 0, dxb, 0)
+ C(0xed0d, DEB, RXE, Z, e1, m2_32u, new, e1, deb, 0)
+ C(0xed1d, DDB, RXE, Z, f1_o, m2_64, f1, 0, ddb, 0)
/* DIVIDE LOGICAL */
C(0xb997, DLR, RRE, Z, r1_P32, r2_32u, new_P, r1_P32, divu32, 0)
C(0xe397, DL, RXY_a, Z, r1_P32, m2_32u, new_P, r1_P32, divu32, 0)
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index 2ed8b2c..7f02261 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -993,15 +993,6 @@ static void disas_ed(DisasContext *s, int op, int r1, int
x2, int b2, int d2,
addr = get_address(s, x2, b2, d2);
tmp_r1 = tcg_const_i32(r1);
switch (op) {
- case 0xd: /* DEB R1,D2(X2,B2) [RXE] */
- tmp = tcg_temp_new_i64();
- tmp32 = tcg_temp_new_i32();
- tcg_gen_qemu_ld32u(tmp, addr, get_mem_index(s));
- tcg_gen_trunc_i64_i32(tmp32, tmp);
- gen_helper_deb(cpu_env, tmp_r1, tmp32);
- tcg_temp_free_i64(tmp);
- tcg_temp_free_i32(tmp32);
- break;
case 0x10: /* TCEB R1,D2(X2,B2) [RXE] */
potential_page_fault(s);
gen_helper_tceb(cc_op, cpu_env, tmp_r1, addr);
@@ -1030,10 +1021,6 @@ static void disas_ed(DisasContext *s, int op, int r1,
int x2, int b2, int d2,
potential_page_fault(s);
gen_helper_mdb(cpu_env, tmp_r1, addr);
break;
- case 0x1d: /* DDB R1,D2(X2,B2) [RXE] */
- potential_page_fault(s);
- gen_helper_ddb(cpu_env, tmp_r1, addr);
- break;
case 0x1e: /* MADB R1,R3,D2(X2,B2) [RXF] */
/* for RXF insns, r1 is R3 and r1b is R1 */
tmp32 = tcg_const_i32(r1b);
@@ -1452,9 +1439,6 @@ static void disas_b3(DisasContext *s, int op, int m3, int
r1, int r2)
case 0x3: /* LCEBR R1,R2 [RRE] */
FP_HELPER_CC(lcebr);
break;
- case 0xd: /* DEBR R1,R2 [RRE] */
- FP_HELPER(debr);
- break;
case 0x10: /* LPDBR R1,R2 [RRE] */
FP_HELPER_CC(lpdbr);
break;
@@ -1470,9 +1454,6 @@ static void disas_b3(DisasContext *s, int op, int m3, int
r1, int r2)
case 0x1c: /* MDBR R1,R2 [RRE] */
FP_HELPER(mdbr);
break;
- case 0x1d: /* DDBR R1,R2 [RRE] */
- FP_HELPER(ddbr);
- break;
case 0xe: /* MAEBR R1,R3,R2 [RRF] */
case 0x1e: /* MADBR R1,R3,R2 [RRF] */
case 0x1f: /* MSDBR R1,R3,R2 [RRF] */
@@ -1506,9 +1487,6 @@ static void disas_b3(DisasContext *s, int op, int m3, int
r1, int r2)
case 0x4c: /* MXBR R1,R2 [RRE] */
FP_HELPER(mxbr);
break;
- case 0x4d: /* DXBR R1,R2 [RRE] */
- FP_HELPER(dxbr);
- break;
case 0x65: /* LXR R1,R2 [RRE] */
tmp = load_freg(r2);
store_freg(r1, tmp);
@@ -2379,6 +2357,25 @@ static ExitStatus op_divu64(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_deb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_deb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ddb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_ddb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_dxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_dxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
static ExitStatus op_efpc(DisasContext *s, DisasOps *o)
{
tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, fpc));
--
1.7.11.4
- Re: [Qemu-devel] [PATCH 053/126] target-s390: Convert MVC, (continued)
- [Qemu-devel] [PATCH 057/126] target-s390: Convert LRA, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 055/126] target-s390: Convert CLC, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 056/126] target-s390: Convert MVCP, MVCS, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 054/126] target-s390: Convert NC, XC, OC, TR, UNPK, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 068/126] target-s390: Convert LLGT, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 070/126] target-s390: Convert FP SUBTRACT, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 058/126] target-s390: Convert SIGP, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 060/126] target-s390: Convert LCTL, STCTL, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 059/126] target-s390: Convert EFPC, STFPC, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 071/126] target-s390: Convert FP DIVIDE,
Richard Henderson <=
- [Qemu-devel] [PATCH 088/126] target-s390: Convert STIDP, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 086/126] target-s390: Convert CLST, MVST, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 087/126] target-s390: Convert SRST, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 089/126] target-s390: Convert SCK, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 096/126] target-s390: Convert STAP, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 098/126] target-s390: Convert ISKE, Richard Henderson, 2012/09/09
- [Qemu-devel] [PATCH 097/126] target-s390: Convert IPTE, Richard Henderson, 2012/09/09