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| author | Aurelien Jarno <aurelien@aurel32.net> | 2013-04-20 08:56:21 +0000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-04-26 23:02:43 +0200 |
| commit | 44bc0c4d3e90bfa1fafdbcc19d023d2d4b119eed (patch) | |
| tree | 9aa320b9b759aac02d5d956c1d196d1ebb90ef6d /target-ppc | |
| parent | 05050ee8049f9fe75ffcac4a5aa053b5631653bf (diff) | |
| download | qemu-44bc0c4d3e90bfa1fafdbcc19d023d2d4b119eed.tar.gz qemu-44bc0c4d3e90bfa1fafdbcc19d023d2d4b119eed.tar.bz2 qemu-44bc0c4d3e90bfa1fafdbcc19d023d2d4b119eed.zip | |
target-ppc: emulate store doubleword pair instructions
Needed for Power ISA version 2.05 compliance. The check for odd register
pairs is done using the invalid bits.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/translate.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 40b6162716..e40c452362 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -3459,6 +3459,52 @@ GEN_STFS(stfd, st64, 0x16, PPC_FLOAT); /* stfs stfsu stfsux stfsx */ GEN_STFS(stfs, st32fs, 0x14, PPC_FLOAT); +/* stfdp */ +static void gen_stfdp(DisasContext *ctx) +{ + TCGv EA; + if (unlikely(!ctx->fpu_enabled)) { + gen_exception(ctx, POWERPC_EXCP_FPU); + return; + } + gen_set_access_type(ctx, ACCESS_FLOAT); + EA = tcg_temp_new(); + gen_addr_imm_index(ctx, EA, 0); \ + if (unlikely(ctx->le_mode)) { + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); + tcg_gen_addi_tl(EA, EA, 8); + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA); + } else { + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA); + tcg_gen_addi_tl(EA, EA, 8); + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); + } + tcg_temp_free(EA); +} + +/* stfdpx */ +static void gen_stfdpx(DisasContext *ctx) +{ + TCGv EA; + if (unlikely(!ctx->fpu_enabled)) { + gen_exception(ctx, POWERPC_EXCP_FPU); + return; + } + gen_set_access_type(ctx, ACCESS_FLOAT); + EA = tcg_temp_new(); + gen_addr_reg_index(ctx, EA); + if (unlikely(ctx->le_mode)) { + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); + tcg_gen_addi_tl(EA, EA, 8); + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA); + } else { + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA); + tcg_gen_addi_tl(EA, EA, 8); + gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); + } + tcg_temp_free(EA); +} + /* Optional: */ static inline void gen_qemu_st32fiw(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2) { @@ -9106,6 +9152,8 @@ GEN_STXF(name, stop, 0x17, op | 0x00, type) GEN_STFS(stfd, st64, 0x16, PPC_FLOAT) GEN_STFS(stfs, st32fs, 0x14, PPC_FLOAT) GEN_STXF(stfiw, st32fiw, 0x17, 0x1E, PPC_FLOAT_STFIWX) +GEN_HANDLER_E(stfdp, 0x3D, 0xFF, 0xFF, 0x00200003, PPC_NONE, PPC2_ISA205), +GEN_HANDLER_E(stfdpx, 0x1F, 0x17, 0x1C, 0x00200001, PPC_NONE, PPC2_ISA205), #undef GEN_CRLOGIC #define GEN_CRLOGIC(name, tcg_op, opc) \ |