diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/ppc/cpu.h | 15 | ||||
| -rw-r--r-- | target/ppc/fpu_helper.c | 4 | ||||
| -rw-r--r-- | target/ppc/translate/fp-impl.inc.c | 22 | ||||
| -rw-r--r-- | target/ppc/translate/fp-ops.inc.c | 4 |
4 files changed, 37 insertions, 8 deletions
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 4b35c8e4f4..eaee1a5575 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -591,7 +591,7 @@ enum { #define FPSCR_XE 3 /* Floating-point inexact exception enable */ #define FPSCR_NI 2 /* Floating-point non-IEEE mode */ #define FPSCR_RN1 1 -#define FPSCR_RN 0 /* Floating-point rounding control */ +#define FPSCR_RN0 0 /* Floating-point rounding control */ #define fpscr_fex (((env->fpscr) >> FPSCR_FEX) & 0x1) #define fpscr_vx (((env->fpscr) >> FPSCR_VX) & 0x1) #define fpscr_ox (((env->fpscr) >> FPSCR_OX) & 0x1) @@ -614,7 +614,7 @@ enum { #define fpscr_ze (((env->fpscr) >> FPSCR_ZE) & 0x1) #define fpscr_xe (((env->fpscr) >> FPSCR_XE) & 0x1) #define fpscr_ni (((env->fpscr) >> FPSCR_NI) & 0x1) -#define fpscr_rn (((env->fpscr) >> FPSCR_RN) & 0x3) +#define fpscr_rn (((env->fpscr) >> FPSCR_RN0) & 0x3) /* Invalid operation exception summary */ #define fpscr_ix ((env->fpscr) & ((1 << FPSCR_VXSNAN) | (1 << FPSCR_VXISI) | \ (1 << FPSCR_VXIDI) | (1 << FPSCR_VXZDZ) | \ @@ -640,7 +640,7 @@ enum { #define FP_VXZDZ (1ull << FPSCR_VXZDZ) #define FP_VXIMZ (1ull << FPSCR_VXIMZ) #define FP_VXVC (1ull << FPSCR_VXVC) -#define FP_FR (1ull << FSPCR_FR) +#define FP_FR (1ull << FPSCR_FR) #define FP_FI (1ull << FPSCR_FI) #define FP_C (1ull << FPSCR_C) #define FP_FL (1ull << FPSCR_FL) @@ -648,7 +648,7 @@ enum { #define FP_FE (1ull << FPSCR_FE) #define FP_FU (1ull << FPSCR_FU) #define FP_FPCC (FP_FL | FP_FG | FP_FE | FP_FU) -#define FP_FPRF (FP_C | FP_FL | FP_FG | FP_FE | FP_FU) +#define FP_FPRF (FP_C | FP_FPCC) #define FP_VXSOFT (1ull << FPSCR_VXSOFT) #define FP_VXSQRT (1ull << FPSCR_VXSQRT) #define FP_VXCVI (1ull << FPSCR_VXCVI) @@ -659,7 +659,12 @@ enum { #define FP_XE (1ull << FPSCR_XE) #define FP_NI (1ull << FPSCR_NI) #define FP_RN1 (1ull << FPSCR_RN1) -#define FP_RN (1ull << FPSCR_RN) +#define FP_RN0 (1ull << FPSCR_RN0) +#define FP_RN (FP_RN1 | FP_RN0) + +#define FP_MODE FP_RN +#define FP_ENABLES (FP_VE | FP_OE | FP_UE | FP_ZE | FP_XE) +#define FP_STATUS (FP_FR | FP_FI | FP_FPRF) /* the exception bits which can be cleared by mcrfs - includes FX */ #define FP_EX_CLEAR_BITS (FP_FX | FP_OX | FP_UX | FP_ZX | \ diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c index f437c88aad..5611cf0156 100644 --- a/target/ppc/fpu_helper.c +++ b/target/ppc/fpu_helper.c @@ -403,7 +403,7 @@ void helper_fpscr_clrbit(CPUPPCState *env, uint32_t bit) if (prev == 1) { switch (bit) { case FPSCR_RN1: - case FPSCR_RN: + case FPSCR_RN0: fpscr_set_rounding_mode(env); break; case FPSCR_VXSNAN: @@ -557,7 +557,7 @@ void helper_fpscr_setbit(CPUPPCState *env, uint32_t bit) } break; case FPSCR_RN1: - case FPSCR_RN: + case FPSCR_RN0: fpscr_set_rounding_mode(env); break; default: diff --git a/target/ppc/translate/fp-impl.inc.c b/target/ppc/translate/fp-impl.inc.c index 9dcff947c0..7cd9d8db05 100644 --- a/target/ppc/translate/fp-impl.inc.c +++ b/target/ppc/translate/fp-impl.inc.c @@ -617,6 +617,28 @@ static void gen_mffs(DisasContext *ctx) tcg_temp_free_i64(t0); } +/* mffsl */ +static void gen_mffsl(DisasContext *ctx) +{ + TCGv_i64 t0; + + if (unlikely(!(ctx->insns_flags2 & PPC2_ISA300))) { + return gen_mffs(ctx); + } + + if (unlikely(!ctx->fpu_enabled)) { + gen_exception(ctx, POWERPC_EXCP_FPU); + return; + } + t0 = tcg_temp_new_i64(); + gen_reset_fpstatus(); + tcg_gen_extu_tl_i64(t0, cpu_fpscr); + /* Mask everything except mode, status, and enables. */ + tcg_gen_andi_i64(t0, t0, FP_MODE | FP_STATUS | FP_ENABLES); + set_fpr(rD(ctx->opcode), t0); + tcg_temp_free_i64(t0); +} + /* mtfsb0 */ static void gen_mtfsb0(DisasContext *ctx) { diff --git a/target/ppc/translate/fp-ops.inc.c b/target/ppc/translate/fp-ops.inc.c index 621f6bfe0c..88ebc2526c 100644 --- a/target/ppc/translate/fp-ops.inc.c +++ b/target/ppc/translate/fp-ops.inc.c @@ -104,7 +104,9 @@ GEN_HANDLER_E(fcpsgn, 0x3F, 0x08, 0x00, 0x00000000, PPC_NONE, PPC2_ISA205), GEN_HANDLER_E(fmrgew, 0x3F, 0x06, 0x1E, 0x00000001, PPC_NONE, PPC2_VSX207), GEN_HANDLER_E(fmrgow, 0x3F, 0x06, 0x1A, 0x00000001, PPC_NONE, PPC2_VSX207), GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT), -GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT), +GEN_HANDLER_E_2(mffs, 0x3F, 0x07, 0x12, 0x00, 0x00000000, PPC_FLOAT, PPC_NONE), +GEN_HANDLER_E_2(mffsl, 0x3F, 0x07, 0x12, 0x18, 0x00000000, PPC_FLOAT, + PPC2_ISA300), GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT), GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT), GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x00000000, PPC_FLOAT), |