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提交 54454097 编写于 作者: T ths
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Less magic constants. 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3266 c046a42c-6fe2-441c-8c8c-71466251a162
上级 dee96f6c
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内联 并排
Showing with 29 addition and 25 deletion
target-mips/op_helper.c
浏览文件 @ 54454097
......@@ -613,6 +613,10 @@ void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr)
#define FLOAT_ONE64 (0x3ffULL << 52)
#define FLOAT_TWO32 (1 << 30)
#define FLOAT_TWO64 (1ULL << 62)
#define FLOAT_QNAN32 0x7fbfffff
#define FLOAT_QNAN64 0x7ff7ffffffffffffULL
#define FLOAT_SNAN32 0x7fffffff
#define FLOAT_SNAN64 0x7fffffffffffffffULL
/* convert MIPS rounding mode in FCR31 to IEEE library */
unsigned int ieee_rm[] = {
......@@ -736,7 +740,7 @@ FLOAT_OP(cvtl, d)
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(cvtl, s)
{
......@@ -744,7 +748,7 @@ FLOAT_OP(cvtl, s)
DT2 = float32_to_int64(FST0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(cvtps, pw)
......@@ -761,7 +765,7 @@ FLOAT_OP(cvtpw, ps)
WTH2 = float32_to_int32(FSTH0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(cvts, d)
{
......@@ -799,7 +803,7 @@ FLOAT_OP(cvtw, s)
WT2 = float32_to_int32(FST0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(cvtw, d)
{
......@@ -807,7 +811,7 @@ FLOAT_OP(cvtw, d)
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(roundl, d)
......@@ -817,7 +821,7 @@ FLOAT_OP(roundl, d)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(roundl, s)
{
......@@ -826,7 +830,7 @@ FLOAT_OP(roundl, s)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(roundw, d)
{
......@@ -835,7 +839,7 @@ FLOAT_OP(roundw, d)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(roundw, s)
{
......@@ -844,7 +848,7 @@ FLOAT_OP(roundw, s)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(truncl, d)
......@@ -852,28 +856,28 @@ FLOAT_OP(truncl, d)
DT2 = float64_to_int64_round_to_zero(FDT0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(truncl, s)
{
DT2 = float32_to_int64_round_to_zero(FST0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(truncw, d)
{
WT2 = float64_to_int32_round_to_zero(FDT0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(truncw, s)
{
WT2 = float32_to_int32_round_to_zero(FST0, &env->fpu->fp_status);
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(ceill, d)
......@@ -883,7 +887,7 @@ FLOAT_OP(ceill, d)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(ceill, s)
{
......@@ -892,7 +896,7 @@ FLOAT_OP(ceill, s)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(ceilw, d)
{
......@@ -901,7 +905,7 @@ FLOAT_OP(ceilw, d)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(ceilw, s)
{
......@@ -910,7 +914,7 @@ FLOAT_OP(ceilw, s)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(floorl, d)
......@@ -920,7 +924,7 @@ FLOAT_OP(floorl, d)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(floorl, s)
{
......@@ -929,7 +933,7 @@ FLOAT_OP(floorl, s)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
DT2 = 0x7fffffffffffffffULL;
DT2 = FLOAT_SNAN64;
}
FLOAT_OP(floorw, d)
{
......@@ -938,7 +942,7 @@ FLOAT_OP(floorw, d)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
FLOAT_OP(floorw, s)
{
......@@ -947,7 +951,7 @@ FLOAT_OP(floorw, s)
RESTORE_ROUNDING_MODE;
update_fcr31();
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
WT2 = 0x7fffffff;
WT2 = FLOAT_SNAN32;
}
/* MIPS specific unary operations */
......@@ -1031,7 +1035,7 @@ FLOAT_OP(name, d) \
FDT2 = float64_ ## name (FDT0, FDT1, &env->fpu->fp_status); \
update_fcr31(); \
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \
FDT2 = 0x7ff7ffffffffffffULL; \
FDT2 = FLOAT_QNAN64; \
} \
FLOAT_OP(name, s) \
{ \
......@@ -1039,7 +1043,7 @@ FLOAT_OP(name, s) \
FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status); \
update_fcr31(); \
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \
FST2 = 0x7fbfffff; \
FST2 = FLOAT_QNAN32; \
} \
FLOAT_OP(name, ps) \
{ \
......@@ -1048,8 +1052,8 @@ FLOAT_OP(name, ps) \
FSTH2 = float32_ ## name (FSTH0, FSTH1, &env->fpu->fp_status); \
update_fcr31(); \
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) { \
FST2 = 0x7fbfffff; \
FSTH2 = 0x7fbfffff; \
FST2 = FLOAT_QNAN32; \
FSTH2 = FLOAT_QNAN32; \
} \
}
FLOAT_BINOP(add)
......
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