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ppc: Use FPSCR defines instead of constants 

There are FPSCR-related defines in target/ppc/cpu.h which can be used in
place of constants and explicit shifts which arguably improve the code a
bit in places.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
Message-Id: <1568817169-1721-1-git-send-email-pc@us.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Paul A. Clarke 2019-09-18 09:32:49 -05:00 committed by David Gibson
parent bc7a45ab88
commit 5c94dd3806
2 changed files with 65 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
target/ppc/dfp_helper.c
View File

@ -220,8 +220,8 @@ static void dfp_set_FPRF_from_FRT_with_context(struct PPC_DFP *dfp,
default:
assert(0); /* should never get here */
}
dfp->env->fpscr &= ~(0x1F << 12);
dfp->env->fpscr |= (fprf << 12);
dfp->env->fpscr &= ~FP_FPRF;
dfp->env->fpscr |= (fprf << FPSCR_FPRF);
}
static void dfp_set_FPRF_from_FRT(struct PPC_DFP *dfp)
@ -369,8 +369,8 @@ static void dfp_set_CRBF_from_T(struct PPC_DFP *dfp)
static void dfp_set_FPCC_from_CRBF(struct PPC_DFP *dfp)
{
dfp->env->fpscr &= ~(0xF << 12);
dfp->env->fpscr |= (dfp->crbf << 12);
dfp->env->fpscr &= ~FP_FPCC;
dfp->env->fpscr |= (dfp->crbf << FPSCR_FPCC);
}
static inline void dfp_makeQNaN(decNumber *dn)

122
target/ppc/fpu_helper.c
View File

@ -180,7 +180,7 @@ static void set_fprf_from_class(CPUPPCState *env, int class)
};
bool isneg = class & is_neg;
env->fpscr &= ~(0x1F << FPSCR_FPRF);
env->fpscr &= ~FP_FPRF;
env->fpscr |= fprf[ctz32(class)][isneg] << FPSCR_FPRF;
}
@ -199,12 +199,12 @@ COMPUTE_FPRF(float128)
static void finish_invalid_op_excp(CPUPPCState *env, int op, uintptr_t retaddr)
{
/* Update the floating-point invalid operation summary */
env->fpscr |= 1 << FPSCR_VX;
env->fpscr |= FP_VX;
/* Update the floating-point exception summary */
env->fpscr |= FP_FX;
if (fpscr_ve != 0) {
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
if (fp_exceptions_enabled(env)) {
raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_FP | op, retaddr);
@ -215,11 +215,11 @@ static void finish_invalid_op_excp(CPUPPCState *env, int op, uintptr_t retaddr)
static void finish_invalid_op_arith(CPUPPCState *env, int op,
bool set_fpcc, uintptr_t retaddr)
{
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
env->fpscr &= ~(FP_FR | FP_FI);
if (fpscr_ve == 0) {
if (set_fpcc) {
env->fpscr &= ~(0xF << FPSCR_FPCC);
env->fpscr |= 0x11 << FPSCR_FPCC;
env->fpscr &= ~FP_FPCC;
env->fpscr |= (FP_C | FP_FU);
}
}
finish_invalid_op_excp(env, op, retaddr);
@ -228,7 +228,7 @@ static void finish_invalid_op_arith(CPUPPCState *env, int op,
/* Signalling NaN */
static void float_invalid_op_vxsnan(CPUPPCState *env, uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXSNAN;
env->fpscr |= FP_VXSNAN;
finish_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, retaddr);
}
@ -236,7 +236,7 @@ static void float_invalid_op_vxsnan(CPUPPCState *env, uintptr_t retaddr)
static void float_invalid_op_vxisi(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXISI;
env->fpscr |= FP_VXISI;
finish_invalid_op_arith(env, POWERPC_EXCP_FP_VXISI, set_fpcc, retaddr);
}
@ -244,7 +244,7 @@ static void float_invalid_op_vxisi(CPUPPCState *env, bool set_fpcc,
static void float_invalid_op_vxidi(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXIDI;
env->fpscr |= FP_VXIDI;
finish_invalid_op_arith(env, POWERPC_EXCP_FP_VXIDI, set_fpcc, retaddr);
}
@ -252,7 +252,7 @@ static void float_invalid_op_vxidi(CPUPPCState *env, bool set_fpcc,
static void float_invalid_op_vxzdz(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXZDZ;
env->fpscr |= FP_VXZDZ;
finish_invalid_op_arith(env, POWERPC_EXCP_FP_VXZDZ, set_fpcc, retaddr);
}
@ -260,7 +260,7 @@ static void float_invalid_op_vxzdz(CPUPPCState *env, bool set_fpcc,
static void float_invalid_op_vximz(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXIMZ;
env->fpscr |= FP_VXIMZ;
finish_invalid_op_arith(env, POWERPC_EXCP_FP_VXIMZ, set_fpcc, retaddr);
}
@ -268,7 +268,7 @@ static void float_invalid_op_vximz(CPUPPCState *env, bool set_fpcc,
static void float_invalid_op_vxsqrt(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXSQRT;
env->fpscr |= FP_VXSQRT;
finish_invalid_op_arith(env, POWERPC_EXCP_FP_VXSQRT, set_fpcc, retaddr);
}
@ -276,13 +276,13 @@ static void float_invalid_op_vxsqrt(CPUPPCState *env, bool set_fpcc,
static void float_invalid_op_vxvc(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXVC;
env->fpscr |= FP_VXVC;
if (set_fpcc) {
env->fpscr &= ~(0xF << FPSCR_FPCC);
env->fpscr |= 0x11 << FPSCR_FPCC;
env->fpscr &= ~FP_FPCC;
env->fpscr |= (FP_C | FP_FU);
}
/* Update the floating-point invalid operation summary */
env->fpscr |= 1 << FPSCR_VX;
env->fpscr |= FP_VX;
/* Update the floating-point exception summary */
env->fpscr |= FP_FX;
/* We must update the target FPR before raising the exception */
@ -292,7 +292,7 @@ static void float_invalid_op_vxvc(CPUPPCState *env, bool set_fpcc,
cs->exception_index = POWERPC_EXCP_PROGRAM;
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC;
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
/* Exception is differed */
}
}
@ -301,12 +301,12 @@ static void float_invalid_op_vxvc(CPUPPCState *env, bool set_fpcc,
static void float_invalid_op_vxcvi(CPUPPCState *env, bool set_fpcc,
uintptr_t retaddr)
{
env->fpscr |= 1 << FPSCR_VXCVI;
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
env->fpscr |= FP_VXCVI;
env->fpscr &= ~(FP_FR | FP_FI);
if (fpscr_ve == 0) {
if (set_fpcc) {
env->fpscr &= ~(0xF << FPSCR_FPCC);
env->fpscr |= 0x11 << FPSCR_FPCC;
env->fpscr &= ~FP_FPCC;
env->fpscr |= (FP_C | FP_FU);
}
}
finish_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI, retaddr);
@ -314,13 +314,13 @@ static void float_invalid_op_vxcvi(CPUPPCState *env, bool set_fpcc,
static inline void float_zero_divide_excp(CPUPPCState *env, uintptr_t raddr)
{
env->fpscr |= 1 << FPSCR_ZX;
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
env->fpscr |= FP_ZX;
env->fpscr &= ~(FP_FR | FP_FI);
/* Update the floating-point exception summary */
env->fpscr |= FP_FX;
if (fpscr_ze != 0) {
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
if (fp_exceptions_enabled(env)) {
raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX,
@ -333,19 +333,19 @@ static inline void float_overflow_excp(CPUPPCState *env)
{
CPUState *cs = env_cpu(env);
env->fpscr |= 1 << FPSCR_OX;
env->fpscr |= FP_OX;
/* Update the floating-point exception summary */
env->fpscr |= FP_FX;
if (fpscr_oe != 0) {
/* XXX: should adjust the result */
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
/* We must update the target FPR before raising the exception */
cs->exception_index = POWERPC_EXCP_PROGRAM;
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
} else {
env->fpscr |= 1 << FPSCR_XX;
env->fpscr |= 1 << FPSCR_FI;
env->fpscr |= FP_XX;
env->fpscr |= FP_FI;
}
}
@ -353,13 +353,13 @@ static inline void float_underflow_excp(CPUPPCState *env)
{
CPUState *cs = env_cpu(env);
env->fpscr |= 1 << FPSCR_UX;
env->fpscr |= FP_UX;
/* Update the floating-point exception summary */
env->fpscr |= FP_FX;
if (fpscr_ue != 0) {
/* XXX: should adjust the result */
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
/* We must update the target FPR before raising the exception */
cs->exception_index = POWERPC_EXCP_PROGRAM;
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
@ -370,13 +370,13 @@ static inline void float_inexact_excp(CPUPPCState *env)
{
CPUState *cs = env_cpu(env);
env->fpscr |= 1 << FPSCR_FI;
env->fpscr |= 1 << FPSCR_XX;
env->fpscr |= FP_FI;
env->fpscr |= FP_XX;
/* Update the floating-point exception summary */
env->fpscr |= FP_FX;
if (fpscr_xe != 0) {
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
/* We must update the target FPR before raising the exception */
cs->exception_index = POWERPC_EXCP_PROGRAM;
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
@ -433,7 +433,7 @@ void helper_fpscr_clrbit(CPUPPCState *env, uint32_t bit)
case FPSCR_VXCVI:
if (!fpscr_ix) {
/* Set VX bit to zero */
env->fpscr &= ~(1 << FPSCR_VX);
env->fpscr &= ~FP_VX;
}
break;
case FPSCR_OX:
@ -447,7 +447,7 @@ void helper_fpscr_clrbit(CPUPPCState *env, uint32_t bit)
case FPSCR_XE:
if (!fpscr_eex) {
/* Set the FEX bit */
env->fpscr &= ~(1 << FPSCR_FEX);
env->fpscr &= ~FP_FEX;
}
break;
default:
@ -504,7 +504,7 @@ void helper_fpscr_setbit(CPUPPCState *env, uint32_t bit)
case FPSCR_VXSOFT:
case FPSCR_VXSQRT:
case FPSCR_VXCVI:
env->fpscr |= 1 << FPSCR_VX;
env->fpscr |= FP_VX;
env->fpscr |= FP_FX;
if (fpscr_ve != 0) {
goto raise_ve;
@ -580,7 +580,7 @@ void helper_fpscr_setbit(CPUPPCState *env, uint32_t bit)
break;
raise_excp:
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
/* We have to update Rc1 before raising the exception */
cs->exception_index = POWERPC_EXCP_PROGRAM;
break;
@ -596,8 +596,8 @@ void helper_store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask)
prev = env->fpscr;
new = (target_ulong)arg;
new &= ~0x60000000LL;
new |= prev & 0x60000000LL;
new &= ~(FP_FEX | FP_VX);
new |= prev & (FP_FEX | FP_VX);
for (i = 0; i < sizeof(target_ulong) * 2; i++) {
if (mask & (1 << i)) {
env->fpscr &= ~(0xFLL << (4 * i));
@ -606,17 +606,17 @@ void helper_store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask)
}
/* Update VX and FEX */
if (fpscr_ix != 0) {
env->fpscr |= 1 << FPSCR_VX;
env->fpscr |= FP_VX;
} else {
env->fpscr &= ~(1 << FPSCR_VX);
env->fpscr &= ~FP_VX;
}
if ((fpscr_ex & fpscr_eex) != 0) {
env->fpscr |= 1 << FPSCR_FEX;
env->fpscr |= FP_FEX;
cs->exception_index = POWERPC_EXCP_PROGRAM;
/* XXX: we should compute it properly */
env->error_code = POWERPC_EXCP_FP;
} else {
env->fpscr &= ~(1 << FPSCR_FEX);
env->fpscr &= ~FP_FEX;
}
fpscr_set_rounding_mode(env);
}
@ -639,7 +639,7 @@ static void do_float_check_status(CPUPPCState *env, uintptr_t raddr)
if (status & float_flag_inexact) {
float_inexact_excp(env);
} else {
env->fpscr &= ~(1 << FPSCR_FI); /* clear the FPSCR[FI] bit */
env->fpscr &= ~FP_FI; /* clear the FPSCR[FI] bit */
}
if (cs->exception_index == POWERPC_EXCP_PROGRAM &&
@ -1138,8 +1138,8 @@ void helper_fcmpu(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
ret = 0x02UL;
}
env->fpscr &= ~(0x0F << FPSCR_FPRF);
env->fpscr |= ret << FPSCR_FPRF;
env->fpscr &= ~FP_FPCC;
env->fpscr |= ret << FPSCR_FPCC;
env->crf[crfD] = ret;
if (unlikely(ret == 0x01UL
&& (float64_is_signaling_nan(farg1.d, &env->fp_status) ||
@ -1169,9 +1169,9 @@ void helper_fcmpo(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
ret = 0x02UL;
}
env->fpscr &= ~(0x0F << FPSCR_FPRF);
env->fpscr |= ret << FPSCR_FPRF;
env->crf[crfD] = ret;
env->fpscr &= ~FP_FPCC;
env->fpscr |= ret << FPSCR_FPCC;
env->crf[crfD] = (uint32_t) ret;
if (unlikely(ret == 0x01UL)) {
float_invalid_op_vxvc(env, 1, GETPC());
if (float64_is_signaling_nan(farg1.d, &env->fp_status) ||
@ -2431,8 +2431,8 @@ void helper_xscmpexpdp(CPUPPCState *env, uint32_t opcode,
}
}
env->fpscr &= ~(0x0F << FPSCR_FPRF);
env->fpscr |= cc << FPSCR_FPRF;
env->fpscr &= ~FP_FPCC;
env->fpscr |= cc << FPSCR_FPCC;
env->crf[BF(opcode)] = cc;
do_float_check_status(env, GETPC());
@ -2460,8 +2460,8 @@ void helper_xscmpexpqp(CPUPPCState *env, uint32_t opcode,
}
}
env->fpscr &= ~(0x0F << FPSCR_FPRF);
env->fpscr |= cc << FPSCR_FPRF;
env->fpscr &= ~FP_FPCC;
env->fpscr |= cc << FPSCR_FPCC;
env->crf[BF(opcode)] = cc;
do_float_check_status(env, GETPC());
@ -2505,8 +2505,8 @@ void helper_##op(CPUPPCState *env, uint32_t opcode, \
cc |= CRF_EQ; \
} \
\
env->fpscr &= ~(0x0F << FPSCR_FPRF); \
env->fpscr |= cc << FPSCR_FPRF; \
env->fpscr &= ~FP_FPCC; \
env->fpscr |= cc << FPSCR_FPCC; \
env->crf[BF(opcode)] = cc; \
\
do_float_check_status(env, GETPC()); \
@ -2553,8 +2553,8 @@ void helper_##op(CPUPPCState *env, uint32_t opcode, \
cc |= CRF_EQ; \
} \
\
env->fpscr &= ~(0x0F << FPSCR_FPRF); \
env->fpscr |= cc << FPSCR_FPRF; \
env->fpscr &= ~FP_FPCC; \
env->fpscr |= cc << FPSCR_FPCC; \
env->crf[BF(opcode)] = cc; \
\
do_float_check_status(env, GETPC()); \
@ -3242,8 +3242,8 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
\
if (scrf) { \
cc = sign << CRF_LT_BIT | match << CRF_EQ_BIT; \
env->fpscr &= ~(0x0F << FPSCR_FPRF); \
env->fpscr |= cc << FPSCR_FPRF; \
env->fpscr &= ~FP_FPCC; \
env->fpscr |= cc << FPSCR_FPCC; \
env->crf[BF(opcode)] = cc; \
} else { \
t.tfld = match ? fld_max : 0; \
@ -3286,8 +3286,8 @@ void helper_xststdcsp(CPUPPCState *env, uint32_t opcode, ppc_vsr_t *xb)
&env->fp_status), &env->fp_status);
cc = sign << CRF_LT_BIT | match << CRF_EQ_BIT | not_sp << CRF_SO_BIT;
env->fpscr &= ~(0x0F << FPSCR_FPRF);
env->fpscr |= cc << FPSCR_FPRF;
env->fpscr &= ~FP_FPCC;
env->fpscr |= cc << FPSCR_FPCC;
env->crf[BF(opcode)] = cc;
}