diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-11-03 10:38:40 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-02-03 16:46:10 +1000 |
| commit | d8c5b92f3f5982b16cf2058395d584d38b9143f7 (patch) | |
| tree | ff75ab4bac4a90d8c6c450ebc355fdabce897635 /target/sparc/cpu.h | |
| parent | c9fa8e586b2235cd173fdd8d4acaf2d84ed30009 (diff) | |
target/sparc: Split fcc out of env->fsr
Represent each fcc field separately from the rest of fsr.
This vastly simplifies floating-point comparisons.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20231103173841.33651-22-richard.henderson@linaro.org>
Diffstat (limited to 'target/sparc/cpu.h')
| -rw-r--r-- | target/sparc/cpu.h | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h index c5be9e37de..986c7217ed 100644 --- a/target/sparc/cpu.h +++ b/target/sparc/cpu.h @@ -31,8 +31,10 @@ #if !defined(TARGET_SPARC64) #define TARGET_DPREGS 16 +#define TARGET_FCCREGS 1 #else #define TARGET_DPREGS 32 +#define TARGET_FCCREGS 4 #endif /*#define EXCP_INTERRUPT 0x100*/ @@ -203,24 +205,19 @@ enum { #ifdef TARGET_SPARC64 #define FSR_FTT_NMASK 0xfffffffffffe3fffULL #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL -#define FSR_LDFSR_OLDMASK 0x0000003f000fc000ULL -#define FSR_LDXFSR_MASK 0x0000003fcfc00fffULL -#define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL #else #define FSR_FTT_NMASK 0xfffe3fffULL #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL -#define FSR_LDFSR_OLDMASK 0x000fc000ULL #endif -#define FSR_LDFSR_MASK 0xcfc00fffULL #define FSR_FTT_IEEE_EXCP (1ULL << 14) #define FSR_FTT_UNIMPFPOP (3ULL << 14) #define FSR_FTT_SEQ_ERROR (4ULL << 14) #define FSR_FTT_INVAL_FPR (6ULL << 14) -#define FSR_FCC1_SHIFT 11 -#define FSR_FCC1 (1ULL << FSR_FCC1_SHIFT) -#define FSR_FCC0_SHIFT 10 -#define FSR_FCC0 (1ULL << FSR_FCC0_SHIFT) +#define FSR_FCC0_SHIFT 10 +#define FSR_FCC1_SHIFT 32 +#define FSR_FCC2_SHIFT 34 +#define FSR_FCC3_SHIFT 36 /* MMU */ #define MMU_E (1<<0) @@ -467,8 +464,9 @@ struct CPUArchState { temporary register when possible) */ /* FPU State Register, in parts */ - target_ulong fsr; /* rm, tem, aexc, fcc* */ - uint32_t fsr_cexc_ftt; /* cexc, ftt */ + uint32_t fsr; /* rm, tem, aexc */ + uint32_t fsr_cexc_ftt; /* cexc, ftt */ + uint32_t fcc[TARGET_FCCREGS]; /* fcc* */ CPU_DoubleU fpr[TARGET_DPREGS]; /* floating point registers */ uint32_t cwp; /* index of current register window (extracted |