diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2014-04-30 13:21:55 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-05-23 17:12:38 +0400 |
| commit | 56a6473339dbd2e908cf8c6f2856d5de2bf8d15b (patch) | |
| tree | a500f42c8e140cd909d0a5340474f6012c0740b4 /arch/mips/math-emu/ieee754sp.c | |
| parent | aef3fb76aa1390ef864db888d06d8fcd5510df2d (diff) | |
| download | linux-56a6473339dbd2e908cf8c6f2856d5de2bf8d15b.tar.xz | |
MIPS: math-emu: Switch to using the MIPS rounding modes.
Previously math-emu was using the IEEE-754 constants internally. These
were differing by having the constants for rounding to +/- infinity
switched, so a conversion was necessary. This would be entirely
avoidable if the MIPS constants were used throughout, so get rid of
the bloat.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/math-emu/ieee754sp.c')
| -rw-r--r-- | arch/mips/math-emu/ieee754sp.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/mips/math-emu/ieee754sp.c b/arch/mips/math-emu/ieee754sp.c index e4cec15845b9..d348efe91445 100644 --- a/arch/mips/math-emu/ieee754sp.c +++ b/arch/mips/math-emu/ieee754sp.c @@ -67,17 +67,17 @@ static unsigned ieee754sp_get_rounding(int sn, unsigned xm) */ if (xm & (SP_MBIT(3) - 1)) { switch (ieee754_csr.rm) { - case IEEE754_RZ: + case FPU_CSR_RZ: break; - case IEEE754_RN: + case FPU_CSR_RN: xm += 0x3 + ((xm >> 3) & 1); /* xm += (xm&0x8)?0x4:0x3 */ break; - case IEEE754_RU: /* toward +Infinity */ + case FPU_CSR_RU: /* toward +Infinity */ if (!sn) /* ?? */ xm += 0x8; break; - case IEEE754_RD: /* toward -Infinity */ + case FPU_CSR_RD: /* toward -Infinity */ if (sn) /* ?? */ xm += 0x8; break; @@ -108,15 +108,15 @@ union ieee754sp ieee754sp_format(int sn, int xe, unsigned xm) ieee754_setcx(IEEE754_INEXACT); switch(ieee754_csr.rm) { - case IEEE754_RN: - case IEEE754_RZ: + case FPU_CSR_RN: + case FPU_CSR_RZ: return ieee754sp_zero(sn); - case IEEE754_RU: /* toward +Infinity */ + case FPU_CSR_RU: /* toward +Infinity */ if (sn == 0) return ieee754sp_min(0); else return ieee754sp_zero(1); - case IEEE754_RD: /* toward -Infinity */ + case FPU_CSR_RD: /* toward -Infinity */ if (sn == 0) return ieee754sp_zero(0); else @@ -170,16 +170,16 @@ union ieee754sp ieee754sp_format(int sn, int xe, unsigned xm) ieee754_setcx(IEEE754_INEXACT); /* -O can be table indexed by (rm,sn) */ switch (ieee754_csr.rm) { - case IEEE754_RN: + case FPU_CSR_RN: return ieee754sp_inf(sn); - case IEEE754_RZ: + case FPU_CSR_RZ: return ieee754sp_max(sn); - case IEEE754_RU: /* toward +Infinity */ + case FPU_CSR_RU: /* toward +Infinity */ if (sn == 0) return ieee754sp_inf(0); else return ieee754sp_max(1); - case IEEE754_RD: /* toward -Infinity */ + case FPU_CSR_RD: /* toward -Infinity */ if (sn == 0) return ieee754sp_max(0); else |