[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 03/13] target-ppc: implement lxvl instruction
From: |
Nikunj A Dadhania |
Subject: |
[Qemu-devel] [PATCH 03/13] target-ppc: implement lxvl instruction |
Date: |
Mon, 5 Dec 2016 16:55:20 +0530 |
lxvl: Load VSX Vector with Length
Little/Big-endian Storage:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|FF|FF|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
Loading 14 bytes results in:
Vector (8-bit elements) in BE:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|00|00|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
Vector (8-bit elements) in LE:
+--+--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|00|00|“T”|“S”|“E”|“T”|“ ”|“a”|“ ”|“s”|“i”|“ ”|“s”|“i”|"h"|"T"|
+--+--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
Signed-off-by: Nikunj A Dadhania <address@hidden>
---
target-ppc/helper.h | 1 +
target-ppc/mem_helper.c | 25 +++++++++++++++++++++++++
target-ppc/translate/vsx-impl.inc.c | 27 +++++++++++++++++++++++++++
target-ppc/translate/vsx-ops.inc.c | 1 +
4 files changed, 54 insertions(+)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index bc39efb..d9ccafd 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -317,6 +317,7 @@ DEF_HELPER_3(lvewx, void, env, avr, tl)
DEF_HELPER_3(stvebx, void, env, avr, tl)
DEF_HELPER_3(stvehx, void, env, avr, tl)
DEF_HELPER_3(stvewx, void, env, avr, tl)
+DEF_HELPER_4(lxvl, void, env, tl, tl, tl)
DEF_HELPER_4(vsumsws, void, env, avr, avr, avr)
DEF_HELPER_4(vsum2sws, void, env, avr, avr, avr)
DEF_HELPER_4(vsum4sbs, void, env, avr, avr, avr)
diff --git a/target-ppc/mem_helper.c b/target-ppc/mem_helper.c
index 1ab8a6e..0a8ff54 100644
--- a/target-ppc/mem_helper.c
+++ b/target-ppc/mem_helper.c
@@ -24,6 +24,7 @@
#include "helper_regs.h"
#include "exec/cpu_ldst.h"
+#include "internal.h"
//#define DEBUG_OP
@@ -284,6 +285,30 @@ STVE(stvewx, cpu_stl_data_ra, bswap32, u32)
#undef I
#undef LVE
+void helper_lxvl(CPUPPCState *env, target_ulong addr,
+ target_ulong xt_num, target_ulong rb)
+{
+ ppc_vsr_t xt;
+
+ getVSR(xt_num, &xt, env);
+ if (unlikely((rb & 0xFF) == 0)) {
+ xt.s128 = int128_make128(0, 0);
+ } else {
+ target_ulong end = ((rb & 0xFF) * 8) - 1;
+ if (msr_le) {
+ xt.u64[HI_IDX] = bswap64(cpu_ldq_data_ra(env, addr, GETPC()));
+ addr = addr_add(env, addr, 8);
+ xt.u64[LO_IDX] = bswap64(cpu_ldq_data_ra(env, addr, GETPC()));
+ } else {
+ xt.u64[HI_IDX] = cpu_ldq_data_ra(env, addr, GETPC());
+ addr = addr_add(env, addr, 8);
+ xt.u64[LO_IDX] = cpu_ldq_data_ra(env, addr, GETPC());
+ }
+ xt.s128 = int128_and(xt.s128, mask_u128(0, end));
+ }
+ putVSR(xt_num, &xt, env);
+}
+
#undef HI_IDX
#undef LO_IDX
diff --git a/target-ppc/translate/vsx-impl.inc.c
b/target-ppc/translate/vsx-impl.inc.c
index 2fbdbd2..e53f91e 100644
--- a/target-ppc/translate/vsx-impl.inc.c
+++ b/target-ppc/translate/vsx-impl.inc.c
@@ -240,6 +240,33 @@ VSX_VECTOR_LOAD_STORE(stxv, st_i64, 0)
VSX_VECTOR_LOAD_STORE(lxvx, ld_i64, 1)
VSX_VECTOR_LOAD_STORE(stxvx, st_i64, 1)
+#define VSX_VECTOR_LOAD_STORE_LENGTH(name) \
+static void gen_##name(DisasContext *ctx) \
+{ \
+ TCGv EA, xt; \
+ \
+ if (xT(ctx->opcode) < 32) { \
+ if (unlikely(!ctx->vsx_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_VSXU); \
+ return; \
+ } \
+ } else { \
+ if (unlikely(!ctx->altivec_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_VPU); \
+ return; \
+ } \
+ } \
+ EA = tcg_temp_new(); \
+ xt = tcg_const_tl(xT(ctx->opcode)); \
+ gen_set_access_type(ctx, ACCESS_INT); \
+ gen_addr_register(ctx, EA); \
+ gen_helper_##name(cpu_env, EA, xt, cpu_gpr[rB(ctx->opcode)]); \
+ tcg_temp_free(EA); \
+ tcg_temp_free(xt); \
+}
+
+VSX_VECTOR_LOAD_STORE_LENGTH(lxvl)
+
#define VSX_LOAD_SCALAR_DS(name, operation) \
static void gen_##name(DisasContext *ctx) \
{ \
diff --git a/target-ppc/translate/vsx-ops.inc.c
b/target-ppc/translate/vsx-ops.inc.c
index 8a1cbe0..3383cdd 100644
--- a/target-ppc/translate/vsx-ops.inc.c
+++ b/target-ppc/translate/vsx-ops.inc.c
@@ -10,6 +10,7 @@ GEN_HANDLER_E(lxvw4x, 0x1F, 0x0C, 0x18, 0, PPC_NONE,
PPC2_VSX),
GEN_HANDLER_E(lxvh8x, 0x1F, 0x0C, 0x19, 0, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(lxvb16x, 0x1F, 0x0C, 0x1B, 0, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(lxvx, 0x1F, 0x0C, 0x08, 0x00000040, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E(lxvl, 0x1F, 0x0D, 0x08, 0, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(stxsdx, 0x1F, 0xC, 0x16, 0, PPC_NONE, PPC2_VSX),
GEN_HANDLER_E(stxsibx, 0x1F, 0xD, 0x1C, 0, PPC_NONE, PPC2_ISA300),
--
2.7.4