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author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2016-10-19 11:36:47 +0530 |
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committer | David Gibson <david@gibson.dropbear.id.au> | 2016-10-28 09:36:58 +1100 |
commit | 14fd8ab26752c725b16766c823952e3138924293 (patch) | |
tree | 98c8f6011ea6afa0ced31b92ed4b50bc6282181e | |
parent | cc8b6e76e3d924de7a4413706a3749e413ccf6fb (diff) | |
download | qemu-14fd8ab26752c725b16766c823952e3138924293.tar.gz qemu-14fd8ab26752c725b16766c823952e3138924293.tar.bz2 qemu-14fd8ab26752c725b16766c823952e3138924293.zip |
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.c | 32 | ||||
-rw-r--r-- | target-ppc/translate/vsx-impl.inc.c | 77 | ||||
-rw-r--r-- | target-ppc/translate/vsx-ops.inc.c | 8 |
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) |