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authorNikunj A Dadhania <nikunj@linux.vnet.ibm.com>2016-10-19 11:36:47 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2016-10-28 09:36:58 +1100
commit14fd8ab26752c725b16766c823952e3138924293 (patch)
tree98c8f6011ea6afa0ced31b92ed4b50bc6282181e
parentcc8b6e76e3d924de7a4413706a3749e413ccf6fb (diff)
target-ppc: implement xxbr[qdwh] instruction
Add required helpers (GEN_XX2FORM_EO) for supporting this instruction. xxbrh: VSX Vector Byte-Reverse Halfword xxbrw: VSX Vector Byte-Reverse Word xxbrd: VSX Vector Byte-Reverse Doubleword xxbrq: VSX Vector Byte-Reverse Quadword Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
-rw-r--r--target-ppc/translate.c32
-rw-r--r--target-ppc/translate/vsx-impl.inc.c77
-rw-r--r--target-ppc/translate/vsx-ops.inc.c8
3 files changed, 117 insertions, 0 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index dab8f19a91..94989b2abd 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -376,6 +376,9 @@ GEN_OPCODE2(name, onam, opc1, opc2, opc3, inval, type, type2)
#define GEN_HANDLER_E_2(name, opc1, opc2, opc3, opc4, inval, type, type2) \
GEN_OPCODE3(name, opc1, opc2, opc3, opc4, inval, type, type2)
+#define GEN_HANDLER2_E_2(name, onam, opc1, opc2, opc3, opc4, inval, typ, typ2) \
+GEN_OPCODE4(name, onam, opc1, opc2, opc3, opc4, inval, typ, typ2)
+
typedef struct opcode_t {
unsigned char opc1, opc2, opc3, opc4;
#if HOST_LONG_BITS == 64 /* Explicitly align to 64 bits */
@@ -662,6 +665,21 @@ EXTRACT_HELPER(IMM8, 11, 8);
}, \
.oname = stringify(name), \
}
+#define GEN_OPCODE4(name, onam, op1, op2, op3, op4, invl, _typ, _typ2) \
+{ \
+ .opc1 = op1, \
+ .opc2 = op2, \
+ .opc3 = op3, \
+ .opc4 = op4, \
+ .handler = { \
+ .inval1 = invl, \
+ .type = _typ, \
+ .type2 = _typ2, \
+ .handler = &gen_##name, \
+ .oname = onam, \
+ }, \
+ .oname = onam, \
+}
#else
#define GEN_OPCODE(name, op1, op2, op3, invl, _typ, _typ2) \
{ \
@@ -720,6 +738,20 @@ EXTRACT_HELPER(IMM8, 11, 8);
}, \
.oname = stringify(name), \
}
+#define GEN_OPCODE4(name, onam, op1, op2, op3, op4, invl, _typ, _typ2) \
+{ \
+ .opc1 = op1, \
+ .opc2 = op2, \
+ .opc3 = op3, \
+ .opc4 = op4, \
+ .handler = { \
+ .inval1 = invl, \
+ .type = _typ, \
+ .type2 = _typ2, \
+ .handler = &gen_##name, \
+ }, \
+ .oname = onam, \
+}
#endif
/* SPR load/store helpers */
diff --git a/target-ppc/translate/vsx-impl.inc.c b/target-ppc/translate/vsx-impl.inc.c
index 23ec1e115c..1508bd13e3 100644
--- a/target-ppc/translate/vsx-impl.inc.c
+++ b/target-ppc/translate/vsx-impl.inc.c
@@ -132,6 +132,22 @@ static void gen_bswap16x8(TCGv_i64 outh, TCGv_i64 outl,
tcg_temp_free_i64(mask);
}
+static void gen_bswap32x4(TCGv_i64 outh, TCGv_i64 outl,
+ TCGv_i64 inh, TCGv_i64 inl)
+{
+ TCGv_i64 hi = tcg_temp_new_i64();
+ TCGv_i64 lo = tcg_temp_new_i64();
+
+ tcg_gen_bswap64_i64(hi, inh);
+ tcg_gen_bswap64_i64(lo, inl);
+ tcg_gen_shri_i64(outh, hi, 32);
+ tcg_gen_deposit_i64(outh, outh, hi, 32, 32);
+ tcg_gen_shri_i64(outl, lo, 32);
+ tcg_gen_deposit_i64(outl, outl, lo, 32, 32);
+
+ tcg_temp_free_i64(hi);
+ tcg_temp_free_i64(lo);
+}
static void gen_lxvh8x(DisasContext *ctx)
{
TCGv EA;
@@ -717,6 +733,67 @@ GEN_VSX_HELPER_2(xvrspim, 0x12, 0x0B, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspip, 0x12, 0x0A, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspiz, 0x12, 0x09, 0, PPC2_VSX)
+static void gen_xxbrd(DisasContext *ctx)
+{
+ TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
+ TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
+ TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
+ TCGv_i64 xbl = cpu_vsrl(xB(ctx->opcode));
+
+ if (unlikely(!ctx->vsx_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_VSXU);
+ return;
+ }
+ tcg_gen_bswap64_i64(xth, xbh);
+ tcg_gen_bswap64_i64(xtl, xbl);
+}
+
+static void gen_xxbrh(DisasContext *ctx)
+{
+ TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
+ TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
+ TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
+ TCGv_i64 xbl = cpu_vsrl(xB(ctx->opcode));
+
+ if (unlikely(!ctx->vsx_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_VSXU);
+ return;
+ }
+ gen_bswap16x8(xth, xtl, xbh, xbl);
+}
+
+static void gen_xxbrq(DisasContext *ctx)
+{
+ TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
+ TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
+ TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
+ TCGv_i64 xbl = cpu_vsrl(xB(ctx->opcode));
+ TCGv_i64 t0 = tcg_temp_new_i64();
+
+ if (unlikely(!ctx->vsx_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_VSXU);
+ return;
+ }
+ tcg_gen_bswap64_i64(t0, xbl);
+ tcg_gen_bswap64_i64(xtl, xbh);
+ tcg_gen_mov_i64(xth, t0);
+ tcg_temp_free_i64(t0);
+}
+
+static void gen_xxbrw(DisasContext *ctx)
+{
+ TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
+ TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
+ TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
+ TCGv_i64 xbl = cpu_vsrl(xB(ctx->opcode));
+
+ if (unlikely(!ctx->vsx_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_VSXU);
+ return;
+ }
+ gen_bswap32x4(xth, xtl, xbh, xbl);
+}
+
#define VSX_LOGICAL(name, tcg_op) \
static void glue(gen_, name)(DisasContext * ctx) \
{ \
diff --git a/target-ppc/translate/vsx-ops.inc.c b/target-ppc/translate/vsx-ops.inc.c
index 10eb4b9470..af0d27e012 100644
--- a/target-ppc/translate/vsx-ops.inc.c
+++ b/target-ppc/translate/vsx-ops.inc.c
@@ -39,6 +39,10 @@ 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_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)
+
#define GEN_XX3FORM(name, opc2, opc3, 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), \
@@ -222,6 +226,10 @@ GEN_XX2FORM(xvrspic, 0x16, 0x0A, PPC2_VSX),
GEN_XX2FORM(xvrspim, 0x12, 0x0B, PPC2_VSX),
GEN_XX2FORM(xvrspip, 0x12, 0x0A, PPC2_VSX),
GEN_XX2FORM(xvrspiz, 0x12, 0x09, PPC2_VSX),
+GEN_XX2FORM_EO(xxbrh, 0x16, 0x1D, 0x07, PPC2_ISA300),
+GEN_XX2FORM_EO(xxbrw, 0x16, 0x1D, 0x0F, PPC2_ISA300),
+GEN_XX2FORM_EO(xxbrd, 0x16, 0x1D, 0x17, PPC2_ISA300),
+GEN_XX2FORM_EO(xxbrq, 0x16, 0x1D, 0x1F, PPC2_ISA300),
#define VSX_LOGICAL(name, opc2, opc3, fl2) \
GEN_XX3FORM(name, opc2, opc3, fl2)