diff options
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/dfp_helper.c | 48 | ||||
| -rw-r--r-- | target-ppc/helper.h | 2 | ||||
| -rw-r--r-- | target-ppc/translate.c | 4 |
3 files changed, 54 insertions, 0 deletions
diff --git a/target-ppc/dfp_helper.c b/target-ppc/dfp_helper.c index 050a339f1d..548949fcf0 100644 --- a/target-ppc/dfp_helper.c +++ b/target-ppc/dfp_helper.c @@ -249,6 +249,20 @@ static void dfp_set_FPRF_from_FRT(struct PPC_DFP *dfp) dfp_set_FPRF_from_FRT_with_context(dfp, &dfp->context); } +static void dfp_set_FPRF_from_FRT_short(struct PPC_DFP *dfp) +{ + decContext shortContext; + decContextDefault(&shortContext, DEC_INIT_DECIMAL32); + dfp_set_FPRF_from_FRT_with_context(dfp, &shortContext); +} + +static void dfp_set_FPRF_from_FRT_long(struct PPC_DFP *dfp) +{ + decContext longContext; + decContextDefault(&longContext, DEC_INIT_DECIMAL64); + dfp_set_FPRF_from_FRT_with_context(dfp, &longContext); +} + static void dfp_check_for_OX(struct PPC_DFP *dfp) { if (dfp->context.status & DEC_Overflow) { @@ -873,3 +887,37 @@ void helper_dctqpq(CPUPPCState *env, uint64_t *t, uint64_t *b) t[0] = dfp.t64[HI_IDX]; t[1] = dfp.t64[LO_IDX]; } + +void helper_drsp(CPUPPCState *env, uint64_t *t, uint64_t *b) +{ + struct PPC_DFP dfp; + uint32_t t_short = 0; + dfp_prepare_decimal64(&dfp, 0, b, env); + decimal32FromNumber((decimal32 *)&t_short, &dfp.b, &dfp.context); + decimal32ToNumber((decimal32 *)&t_short, &dfp.t); + + dfp_set_FPRF_from_FRT_short(&dfp); + dfp_check_for_OX(&dfp); + dfp_check_for_UX(&dfp); + dfp_check_for_XX(&dfp); + + *t = t_short; +} + +void helper_drdpq(CPUPPCState *env, uint64_t *t, uint64_t *b) +{ + struct PPC_DFP dfp; + dfp_prepare_decimal128(&dfp, 0, b, env); + decimal64FromNumber((decimal64 *)&dfp.t64, &dfp.b, &dfp.context); + decimal64ToNumber((decimal64 *)&dfp.t64, &dfp.t); + + dfp_check_for_VXSNAN_and_convert_to_QNaN(&dfp); + dfp_set_FPRF_from_FRT_long(&dfp); + dfp_check_for_OX(&dfp); + dfp_check_for_UX(&dfp); + dfp_check_for_XX(&dfp); + + decimal64FromNumber((decimal64 *)dfp.t64, &dfp.t, &dfp.context); + t[0] = dfp.t64[0]; + t[1] = 0; +} diff --git a/target-ppc/helper.h b/target-ppc/helper.h index c7dbb1979f..2220e62009 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -648,3 +648,5 @@ DEF_HELPER_5(drintn, void, env, fprp, fprp, i32, i32) DEF_HELPER_5(drintnq, void, env, fprp, fprp, i32, i32) DEF_HELPER_3(dctdp, void, env, fprp, fprp) DEF_HELPER_3(dctqpq, void, env, fprp, fprp) +DEF_HELPER_3(drsp, void, env, fprp, fprp) +DEF_HELPER_3(drdpq, void, env, fprp, fprp) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index c62c583cee..67da056ae2 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -8388,6 +8388,8 @@ GEN_DFP_T_B_U32_U32_Rc(drintn, FPW, RMC) GEN_DFP_T_B_U32_U32_Rc(drintnq, FPW, RMC) GEN_DFP_T_B_Rc(dctdp) GEN_DFP_T_B_Rc(dctqpq) +GEN_DFP_T_B_Rc(drsp) +GEN_DFP_T_B_Rc(drdpq) /*** SPE extension ***/ /* Register moves */ @@ -11347,6 +11349,8 @@ GEN_DFP_R_T_B_RMC_Rc(drintn, 0x03, 0x07), GEN_DFP_R_Tp_Bp_RMC_Rc(drintnq, 0x03, 0x07), GEN_DFP_T_B_Rc(dctdp, 0x02, 0x08), GEN_DFP_Tp_B_Rc(dctqpq, 0x02, 0x08), +GEN_DFP_T_B_Rc(drsp, 0x02, 0x18), +GEN_DFP_Tp_Bp_Rc(drdpq, 0x02, 0x18), #undef GEN_SPE #define GEN_SPE(name0, name1, opc2, opc3, inval0, inval1, type) \ GEN_OPCODE_DUAL(name0##_##name1, 0x04, opc2, opc3, inval0, inval1, type, PPC_NONE) |