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[Qemu-ppc] [PATCH 07/13] target-ppc: implement xxextractuw instruction
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From: |
Nikunj A Dadhania |
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Subject: |
[Qemu-ppc] [PATCH 07/13] target-ppc: implement xxextractuw instruction |
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Date: |
Mon, 5 Dec 2016 16:55:24 +0530 |
xxextractuw: VSX Vector Extract Unsigned Word
Signed-off-by: Nikunj A Dadhania <address@hidden>
---
target-ppc/helper.h | 1 +
target-ppc/int_helper.c | 33 +++++++++++++++++++++++++++++++++
target-ppc/translate/vsx-impl.inc.c | 22 ++++++++++++++++++++++
target-ppc/translate/vsx-ops.inc.c | 5 +++++
4 files changed, 61 insertions(+)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 91bdfc3..940f81c 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -536,6 +536,7 @@ DEF_HELPER_2(xvrspic, void, env, i32)
DEF_HELPER_2(xvrspim, void, env, i32)
DEF_HELPER_2(xvrspip, void, env, i32)
DEF_HELPER_2(xvrspiz, void, env, i32)
+DEF_HELPER_4(xxextractuw, void, env, tl, tl, i32)
DEF_HELPER_2(efscfsi, i32, env, i32)
DEF_HELPER_2(efscfui, i32, env, i32)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 7030f61..d7f50bd 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -2033,6 +2033,39 @@ VEXTRACT(uw, u32)
VEXTRACT(d, u64)
#undef VEXTRACT
+#if defined(HOST_WORDS_BIGENDIAN)
+#define XXEXTRACT(name, element) \
+void helper_##name(CPUPPCState *env, target_ulong xtn, \
+ target_ulong xbn, uint32_t index) \
+{ \
+ ppc_vsr_t xt, xb; \
+ uint32_t es = sizeof(xt.element[0]); \
+ \
+ getVSR(xbn, &xb, env); \
+ memmove(&xt.u8[8 - es], &xb.u8[index], es); \
+ memset(&xt.u8[8], 0, 8); \
+ memset(&xt.u8[0], 0, 8 - es); \
+ putVSR(xtn, &xt, env); \
+}
+#else
+#define XXEXTRACT(name, element) \
+void helper_##name(CPUPPCState *env, target_ulong xtn, \
+ target_ulong xbn, uint32_t index) \
+{ \
+ ppc_vsr_t xt, xb; \
+ uint32_t es = sizeof(xt.element[0]); \
+ uint32_t s = (16 - index) - es; \
+ \
+ getVSR(xbn, &xb, env); \
+ memmove(&xt.u8[8], &xb.u8[s], es); \
+ memset(&xt.u8[0], 0, 8); \
+ memset(&xt.u8[8 + es], 0, 8 - es); \
+ putVSR(xtn, &xt, env); \
+}
+#endif
+XXEXTRACT(xxextractuw, u32)
+#undef XXEXTRACT
+
#define VEXT_SIGNED(name, element, mask, cast, recast) \
void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \
{ \
diff --git a/target-ppc/translate/vsx-impl.inc.c
b/target-ppc/translate/vsx-impl.inc.c
index d2d931c..e978b7e 100644
--- a/target-ppc/translate/vsx-impl.inc.c
+++ b/target-ppc/translate/vsx-impl.inc.c
@@ -1127,6 +1127,28 @@ static void gen_xxsldwi(DisasContext *ctx)
tcg_temp_free_i64(xtl);
}
+#define VSX_EXTRACT(name) \
+static void gen_##name(DisasContext *ctx) \
+{ \
+ TCGv xt, xb; \
+ TCGv_i32 t0 = tcg_temp_new_i32(); \
+ uint8_t uimm = UIMM4(ctx->opcode); \
+ \
+ if (unlikely(!ctx->vsx_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_VSXU); \
+ return; \
+ } \
+ xt = tcg_const_tl(xT(ctx->opcode)); \
+ xb = tcg_const_tl(xB(ctx->opcode)); \
+ tcg_gen_movi_i32(t0, uimm); \
+ gen_helper_##name(cpu_env, xt, xb, t0); \
+ tcg_temp_free(xb); \
+ tcg_temp_free(xt); \
+ tcg_temp_free_i32(t0); \
+}
+
+VSX_EXTRACT(xxextractuw)
+
#undef GEN_XX2FORM
#undef GEN_XX3FORM
#undef GEN_XX2IFORM
diff --git a/target-ppc/translate/vsx-ops.inc.c
b/target-ppc/translate/vsx-ops.inc.c
index f315580..1f35365 100644
--- a/target-ppc/translate/vsx-ops.inc.c
+++ b/target-ppc/translate/vsx-ops.inc.c
@@ -45,6 +45,10 @@ GEN_HANDLER2_E(name, #name, 0x3C, opc2 | 1, opc3, 0,
PPC_NONE, fl2)
GEN_HANDLER2_E(name, #name, 0x3C, opc2 | 0, opc3, 0, PPC_NONE, fl2), \
GEN_HANDLER2_E(name, #name, 0x3C, opc2 | 1, opc3, 0, PPC_NONE, fl2)
+#define GEN_XX2FORM_EXT(name, opc2, opc3, fl2) \
+GEN_HANDLER2_E(name, #name, 0x3C, opc2 | 0, opc3, 0x00100000, PPC_NONE, fl2), \
+GEN_HANDLER2_E(name, #name, 0x3C, opc2 | 1, opc3, 0x00100000, PPC_NONE, fl2)
+
#define GEN_XX2FORM_EO(name, opc2, opc3, opc4, fl2) \
GEN_HANDLER2_E_2(name, #name, 0x3C, opc2 | 0, opc3, opc4, 0, PPC_NONE, fl2), \
GEN_HANDLER2_E_2(name, #name, 0x3C, opc2 | 1, opc3, opc4, 0, PPC_NONE, fl2)
@@ -267,6 +271,7 @@ GEN_XX3FORM(xxmrglw, 0x08, 0x06, PPC2_VSX),
GEN_XX2FORM(xxspltw, 0x08, 0x0A, PPC2_VSX),
GEN_XX1FORM(xxspltib, 0x08, 0x0B, PPC2_ISA300),
GEN_XX3FORM_DM(xxsldwi, 0x08, 0x00),
+GEN_XX2FORM_EXT(xxextractuw, 0x0A, 0x0A, PPC2_ISA300),
#define GEN_XXSEL_ROW(opc3) \
GEN_HANDLER2_E(xxsel, "xxsel", 0x3C, 0x18, opc3, 0, PPC_NONE, PPC2_VSX), \
--
2.7.4
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 03/13] target-ppc: implement lxvl instruction, (continued)
- [Qemu-ppc] [PATCH 04/13] target-ppc: implement lxvll instruction, Nikunj A Dadhania, 2016/12/05
- [Qemu-ppc] [PATCH 05/13] target-ppc: implement stxvl instruction, Nikunj A Dadhania, 2016/12/05
- [Qemu-ppc] [PATCH 07/13] target-ppc: implement xxextractuw instruction,
Nikunj A Dadhania <=
- [Qemu-ppc] [PATCH 09/13] target-ppc: implement stop instruction, Nikunj A Dadhania, 2016/12/05
- [Qemu-ppc] [PATCH 06/13] target-ppc: implement stxvll instructions, Nikunj A Dadhania, 2016/12/05
- [Qemu-ppc] [PATCH 08/13] target-ppc: implement xxinsertw instruction, Nikunj A Dadhania, 2016/12/05
- [Qemu-ppc] [PATCH 10/13] target-ppc: implement xsabsqp/xsnabsqp instruction, Nikunj A Dadhania, 2016/12/05
- [Qemu-ppc] [PATCH 11/13] target-ppc: implement xsnegqp instruction, Nikunj A Dadhania, 2016/12/05