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| author | David S. Miller <davem@redhat.com> | 2012-04-27 18:03:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@redhat.com> | 2012-04-27 18:03:13 +0000 |
| commit | 698544e152e041de8aaaaeea99f6f3c00ee99604 (patch) | |
| tree | 264045c30492ca6144e246820391c0b5cf651a1d /opcodes/sparc-opc.c | |
| parent | 6cda13266f4d767456ccd5ee9f4c8539b463fc0e (diff) | |
| download | gdb-698544e152e041de8aaaaeea99f6f3c00ee99604.zip gdb-698544e152e041de8aaaaeea99f6f3c00ee99604.tar.gz gdb-698544e152e041de8aaaaeea99f6f3c00ee99604.tar.bz2 | |
Add support for sparc compare-and-branch instructions.
opcodes/
* sparc-opc.c (CBCOND): New define.
(CBCOND_XCC): Likewise.
(cbcond): New helper macro.
(sparc_opcodes): Add compare-and-branch instructions.
gas/
* config/tc-sparc.c (sparc_arch_table): Add HWCAP_CBCOND to
sparc4, v8pluse, v8plusv, v9e, and v9v.
(sparc_ip): Handle R_SPARC_5 of immediate constants inline in
order to accomodate cbcond which otherwise would require two
relocations to be handled in a single instruction..
gas/testsuite/
* gas/sparc/cbcond.s: New file.
* gas/sparc/cbcond.d: New file.
* gas/sparc/sparc.exp: Run cbcond test.
Diffstat (limited to 'opcodes/sparc-opc.c')
| -rw-r--r-- | opcodes/sparc-opc.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/opcodes/sparc-opc.c b/opcodes/sparc-opc.c index 2ae6fd2..d83b49d 100644 --- a/opcodes/sparc-opc.c +++ b/opcodes/sparc-opc.c @@ -104,6 +104,9 @@ sparc_opcode_lookup_arch (const char *name) /* Branch condition field. */ #define COND(x) (((x) & 0xf) << 25) +/* Compare And Branch condition field. */ +#define CBCOND(x) (((x) & 0x1f) << 25) + /* v9: Move (MOVcc and FMOVcc) condition field. */ #define MCOND(x,i_or_f) ((((i_or_f) & 1) << 18) | (((x) >> 11) & (0xf << 14))) /* v9 */ @@ -154,6 +157,7 @@ sparc_opcode_lookup_arch (const char *name) #define ICC (0) /* v9 */ #define XCC (1 << 12) /* v9 */ +#define CBCOND_XCC (1 << 21) #define FCC(x) (((x) & 0x3) << 11) /* v9 */ #define FBFCC(x) (((x) & 0x3) << 20) /* v9 */ @@ -1191,6 +1195,32 @@ cond ("bz", "tz", CONDZ, F_CONDBR|F_ALIAS), /* for e */ /* v9 */ condr("brlez", 0x2, F_CONDBR), /* v9 */ condr("brgz", 0x6, F_CONDBR), +#define cbcond(cop, cmask) \ + { "cw" cop, F2(0, 3)|CBCOND(cmask)|F3I(0),F2(~0,~3)|CBCOND(~(cmask))|F3I(~0)|CBCOND_XCC, \ + "1,2,=", F_CONDBR, HWCAP_CBCOND, v9}, \ + { "cw" cop, F2(0, 3)|CBCOND(cmask)|F3I(1),F2(~0,~3)|CBCOND(~(cmask))|F3I(~1)|CBCOND_XCC, \ + "1,X,=", F_CONDBR, HWCAP_CBCOND, v9}, \ + { "cx" cop, F2(0, 3)|CBCOND(cmask)|F3I(0)|CBCOND_XCC,F2(~0,~3)|CBCOND(~(cmask))|F3I(~0), \ + "1,2,=", F_CONDBR, HWCAP_CBCOND, v9}, \ + { "cx" cop, F2(0, 3)|CBCOND(cmask)|F3I(1)|CBCOND_XCC,F2(~0,~3)|CBCOND(~(cmask))|F3I(~1), \ + "1,X,=", F_CONDBR, HWCAP_CBCOND, v9}, + +cbcond("be", 0x09) +cbcond("ble", 0x0a) +cbcond("bl", 0x0b) +cbcond("bleu", 0x0c) +cbcond("bcs", 0x0d) +cbcond("bneg", 0x0e) +cbcond("bvs", 0x0f) +cbcond("bne", 0x19) +cbcond("bg", 0x1a) +cbcond("bge", 0x1b) +cbcond("bgu", 0x1c) +cbcond("bcc", 0x1d) +cbcond("bpos", 0x1e) +cbcond("bvc", 0x1f) + +#undef cbcond #undef condr /* v9 */ #undef brr /* v9 */ |