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[Qemu-devel] [PATCH 29/35] tcg-s390: Tidy user qemu_ld/st.
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 29/35] tcg-s390: Tidy user qemu_ld/st. |
Date: |
Fri, 4 Jun 2010 12:14:37 -0700 |
Create a tcg_prepare_user_ldst to prep the host address to
be used to implement the guest memory operation.
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/s390/tcg-target.c | 33 +++++++++++++++++++++------------
1 files changed, 21 insertions(+), 12 deletions(-)
diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c
index b73515d..ef1f69e 100644
--- a/tcg/s390/tcg-target.c
+++ b/tcg/s390/tcg-target.c
@@ -1313,6 +1313,17 @@ static void tcg_finish_qemu_ldst(TCGContext* s, uint16_t
*label2_ptr)
*(label2_ptr + 1) = ((unsigned long)s->code_ptr -
(unsigned long)label2_ptr) >> 1;
}
+#else
+static void tcg_prepare_user_ldst(TCGContext *s, TCGReg *addr_reg,
+ TCGReg *index_reg, tcg_target_long *disp)
+{
+ *index_reg = TCG_REG_NONE;
+ *disp = 0;
+ if (TARGET_LONG_BITS == 32) {
+ tgen_ext32u(s, TCG_TMP0, *addr_reg);
+ *addr_reg = TCG_TMP0;
+ }
+}
#endif /* CONFIG_SOFTMMU */
/* load data with address translation (if applicable)
@@ -1323,6 +1334,9 @@ static void tcg_out_qemu_ld(TCGContext* s, const TCGArg*
args, int opc)
#if defined(CONFIG_SOFTMMU)
int mem_index;
uint16_t *label2_ptr;
+#else
+ TCGReg index_reg;
+ tcg_target_long disp;
#endif
data_reg = *args++;
@@ -1338,12 +1352,8 @@ static void tcg_out_qemu_ld(TCGContext* s, const TCGArg*
args, int opc)
tcg_finish_qemu_ldst(s, label2_ptr);
#else
- if (TARGET_LONG_BITS == 32) {
- tgen_ext32u(s, TCG_TMP0, addr_reg);
- tcg_out_qemu_ld_direct(s, opc, data_reg, TCG_TMP0, TCG_REG_NONE, 0);
- } else {
- tcg_out_qemu_ld_direct(s, opc, data_reg, addr_reg, TCG_REG_NONE, 0);
- }
+ tcg_prepare_user_ldst(s, &addr_reg, &index_reg, &disp);
+ tcg_out_qemu_ld_direct(s, opc, data_reg, addr_reg, index_reg, disp);
#endif
}
@@ -1353,6 +1363,9 @@ static void tcg_out_qemu_st(TCGContext* s, const TCGArg*
args, int opc)
#if defined(CONFIG_SOFTMMU)
int mem_index;
uint16_t *label2_ptr;
+#else
+ TCGReg index_reg;
+ tcg_target_long disp;
#endif
data_reg = *args++;
@@ -1368,12 +1381,8 @@ static void tcg_out_qemu_st(TCGContext* s, const TCGArg*
args, int opc)
tcg_finish_qemu_ldst(s, label2_ptr);
#else
- if (TARGET_LONG_BITS == 32) {
- tgen_ext32u(s, TCG_TMP0, addr_reg);
- tcg_out_qemu_st_direct(s, opc, data_reg, TCG_TMP0, TCG_REG_NONE, 0);
- } else {
- tcg_out_qemu_st_direct(s, opc, data_reg, addr_reg, TCG_REG_NONE, 0);
- }
+ tcg_prepare_user_ldst(s, &addr_reg, &index_reg, &disp);
+ tcg_out_qemu_st_direct(s, opc, data_reg, addr_reg, index_reg, disp);
#endif
}
--
1.7.0.1
- [Qemu-devel] [PATCH 20/35] tcg-s390: Use LOAD COMPLIMENT for negate., (continued)
- [Qemu-devel] [PATCH 20/35] tcg-s390: Use LOAD COMPLIMENT for negate., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 21/35] tcg-s390: Use the ADD IMMEDIATE instructions., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 22/35] tcg-s390: Use the AND IMMEDIATE instructions., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 23/35] tcg-s390: Use the OR IMMEDIATE instructions., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 24/35] tcg-s390: Use the XOR IMMEDIATE instructions., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 25/35] tcg-s390: Use the MULTIPLY IMMEDIATE instructions., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 26/35] tcg-s390: Tidy goto_tb., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 27/35] tcg-s390: Rearrange qemu_ld/st to avoid register copy., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 28/35] tcg-s390: Tidy tcg_prepare_qemu_ldst., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 29/35] tcg-s390: Tidy user qemu_ld/st.,
Richard Henderson <=
- [Qemu-devel] [PATCH 30/35] tcg-s390: Implement GUEST_BASE., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 31/35] tcg-s390: Use 16-bit branches for forward jumps., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 33/35] tcg-s390: Use the COMPARE IMMEDIATE instrucions for compares., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 34/35] tcg-s390: Use COMPARE AND BRANCH instructions., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 32/35] tcg-s390: Use the LOAD AND TEST instruction for compares., Richard Henderson, 2010/06/04
- [Qemu-devel] [PATCH 35/35] tcg-s390: Enable compile in 32-bit mode., Richard Henderson, 2010/06/04
- [Qemu-devel] Re: [PATCH 00/35] S390 TCG target, version 2, Alexander Graf, 2010/06/08