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| author | Ian Lance Taylor <ian@airs.com> | 1996-09-20 19:49:49 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1996-09-20 19:49:49 +0000 |
| commit | 149ee67274766a0a56a671ec2c35b556b5fdb4ae (patch) | |
| tree | d940ea0a60056b234a3b076fbc7fccc7a07295c8 /sim/mips | |
| parent | e12ab364d210b4e6418145ae2457b2d4f7e65a21 (diff) | |
| download | gdb-149ee67274766a0a56a671ec2c35b556b5fdb4ae.zip gdb-149ee67274766a0a56a671ec2c35b556b5fdb4ae.tar.gz gdb-149ee67274766a0a56a671ec2c35b556b5fdb4ae.tar.bz2 | |
* gencode.c (process_instructions): Call build_endian_shift when
expanding STORE RIGHT, to fix swr.
* support.h (SIGNEXTEND): If the sign bit is not set, explicitly
clear the high bits.
* interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
Fix float to int conversions to produce signed values.
Diffstat (limited to 'sim/mips')
| -rw-r--r-- | sim/mips/gencode.c | 1 | ||||
| -rw-r--r-- | sim/mips/support.h | 5 |
2 files changed, 5 insertions, 1 deletions
diff --git a/sim/mips/gencode.c b/sim/mips/gencode.c index ff27ef6..dce648a 100644 --- a/sim/mips/gencode.c +++ b/sim/mips/gencode.c @@ -1530,6 +1530,7 @@ process_instructions(doarch,features) printf(" GPR[destreg] = SIGNEXTEND(GPR[destreg],32);\n"); } else { /* store */ printf(" memval = (op2 << (byte * 8));\n"); + build_endian_shift(proc64,datalen,2,s_left,32); printf(" StoreMemory(uncached,(%s - byte),memval,paddr,vaddr,isREAL);\n",accesslength); } } diff --git a/sim/mips/support.h b/sim/mips/support.h index b9bf0dd..11f285c 100644 --- a/sim/mips/support.h +++ b/sim/mips/support.h @@ -48,7 +48,10 @@ typedef unsigned long long uword64; /* Sign-extend the given value (e) as a value (b) bits long. We cannot assume the HI32bits of the operand are zero, so we must perform a mask to ensure we can use the simple subtraction to sign-extend. */ -#define SIGNEXTEND(e,b) (((e) & ((uword64)1 << ((b) - 1))) ? (((e) & (((uword64)1 << (b)) - 1)) - ((uword64)1 << (b))) : (e)) +#define SIGNEXTEND(e,b) \ + (((e) & ((uword64) 1 << ((b) - 1))) \ + ? (((e) & (((uword64) 1 << (b)) - 1)) - ((uword64)1 << (b))) \ + : ((e) & (((((uword64) 1 << ((b) - 1)) - 1) << 1) | 1))) /* Check if a value will fit within a word (unsigned int): */ #define NOTWORDVALUE(v) ((((((uword64)(v)>>32) == 0) && !((v) & ((unsigned)1 << 31))) || ((((uword64)(v)>>32) == 0xFFFFFFFF) && ((v) & ((unsigned)1 << 31)))) ? (1 == 0) : (1 == 1)) |