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authorTom Musta <tommusta@gmail.com>2014-02-10 11:27:01 -0600
committerAlexander Graf <agraf@suse.de>2014-03-05 03:06:51 +0100
commit27b95bfe624af1ddfaf63c07f3f0a63049b8c9fc (patch)
treea1b4195e22a9f45510df8bdb1964d440ddafbc09 /target-ppc
parent9c294d5ab3eac0e600fa510becfa677d87b088bf (diff)
target-ppc: Add Store Quadword Conditional
This patch adds the Store Quadword Conditionl (stqcx.) instruction which is introduced in Power ISA 2.07. Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: fix compile error when !TARGET_PPC64] Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/translate.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 13c9802681..5839b6c5dd 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -3329,6 +3329,20 @@ static void gen_conditional_store(DisasContext *ctx, TCGv EA,
gen_qemu_st32(ctx, cpu_gpr[reg], EA);
} else if (size == 2) {
gen_qemu_st16(ctx, cpu_gpr[reg], EA);
+#if defined(TARGET_PPC64)
+ } else if (size == 16) {
+ TCGv gpr1, gpr2;
+ if (unlikely(ctx->le_mode)) {
+ gpr1 = cpu_gpr[reg+1];
+ gpr2 = cpu_gpr[reg];
+ } else {
+ gpr1 = cpu_gpr[reg];
+ gpr2 = cpu_gpr[reg+1];
+ }
+ gen_qemu_st64(ctx, gpr1, EA);
+ gen_addr_add(ctx, EA, EA, 8);
+ gen_qemu_st64(ctx, gpr2, EA);
+#endif
} else {
gen_qemu_st8(ctx, cpu_gpr[reg], EA);
}
@@ -3341,6 +3355,11 @@ static void gen_conditional_store(DisasContext *ctx, TCGv EA,
static void gen_##name(DisasContext *ctx) \
{ \
TCGv t0; \
+ if (unlikely((len == 16) && (rD(ctx->opcode) & 1))) { \
+ gen_inval_exception(ctx, \
+ POWERPC_EXCP_INVAL_INVAL); \
+ return; \
+ } \
gen_set_access_type(ctx, ACCESS_RES); \
t0 = tcg_temp_local_new(); \
gen_addr_reg_index(ctx, t0); \
@@ -3397,6 +3416,7 @@ static void gen_lqarx(DisasContext *ctx)
/* stdcx. */
STCX(stdcx_, 8);
+STCX(stqcx_, 16);
#endif /* defined(TARGET_PPC64) */
/* sync */
@@ -9661,6 +9681,7 @@ GEN_HANDLER2(stwcx_, "stwcx.", 0x1F, 0x16, 0x04, 0x00000000, PPC_RES),
GEN_HANDLER(ldarx, 0x1F, 0x14, 0x02, 0x00000000, PPC_64B),
GEN_HANDLER_E(lqarx, 0x1F, 0x14, 0x08, 0, PPC_NONE, PPC2_LSQ_ISA207),
GEN_HANDLER2(stdcx_, "stdcx.", 0x1F, 0x16, 0x06, 0x00000000, PPC_64B),
+GEN_HANDLER_E(stqcx_, 0x1F, 0x16, 0x05, 0, PPC_NONE, PPC2_LSQ_ISA207),
#endif
GEN_HANDLER(sync, 0x1F, 0x16, 0x12, 0x039FF801, PPC_MEM_SYNC),
GEN_HANDLER(wait, 0x1F, 0x1E, 0x01, 0x03FFF801, PPC_WAIT),