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| author | Maciej W. Rozycki <macro@imgtec.com> | 2017-06-30 07:21:56 +0100 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@imgtec.com> | 2017-06-30 07:21:56 +0100 |
| commit | f5b2fd523f8f180e11f77b84a107279c562672cd (patch) | |
| tree | 531ff5dcc9ae39d065a05f96655363d3ad5895d1 /opcodes/micromips-opc.c | |
| parent | 9785fc2a4d220322ce6cd1d79e768345ea5234d2 (diff) | |
| download | gdb-f5b2fd523f8f180e11f77b84a107279c562672cd.zip gdb-f5b2fd523f8f180e11f77b84a107279c562672cd.tar.gz gdb-f5b2fd523f8f180e11f77b84a107279c562672cd.tar.bz2 | |
MIPS: Add microMIPS R5 support
Add base microMIPS Release 5 ISA support and the ERETNC instruction in
particular, as per the architecture specifications[1][2].
Most of this change by Andrew Bennett.
References:
[1] "MIPS Architecture for Programmers Volume II-B: The microMIPS32
Instruction Set", MIPS Technologies, Inc., Document Number: MD00582,
Revision 5.04, January 15, 2014, Section 5.5 "Recoded 32-Bit
Instructions", pp. 266-267
[2] "MIPS Architecture for Programmers Volume II-B: The microMIPS64
Instruction Set", MIPS Technologies, Inc., Document Number: MD00594,
Revision 5.04, January 15, 2014, Section 5.5 "Recoded 32-Bit
Instructions", pp. 326-327
binutils/
* NEWS: Mention microMIPS Release 5 ISA support.
opcodes/
* micromips-opc.c (I36): New macro.
(micromips_opcodes): Add "eretnc".
gas/
* testsuite/gas/mips/micromips@r5.d: New test.
* testsuite/gas/mips/mips.exp: Run the new test.
Diffstat (limited to 'opcodes/micromips-opc.c')
| -rw-r--r-- | opcodes/micromips-opc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/opcodes/micromips-opc.c b/opcodes/micromips-opc.c index dcd235f..d8edd28 100644 --- a/opcodes/micromips-opc.c +++ b/opcodes/micromips-opc.c @@ -253,6 +253,7 @@ decode_micromips_operand (const char *p) are accepted as 64-bit microMIPS ISA. */ #define I1 INSN_ISA1 #define I3 INSN_ISA3 +#define I36 INSN_ISA32R5 /* MIPS DSP ASE support. */ #define WR_a WR_HILO /* Write DSP accumulators (reuse WR_HILO). */ @@ -687,6 +688,7 @@ const struct mips_opcode micromips_opcodes[] = {"ei", "", 0x0000577c, 0xffffffff, WR_C0, 0, I1, 0, 0 }, {"ei", "s", 0x0000577c, 0xffe0ffff, WR_1|WR_C0, 0, I1, 0, 0 }, {"eret", "", 0x0000f37c, 0xffffffff, NODS, 0, I1, 0, 0 }, +{"eretnc", "", 0x0001f37c, 0xffffffff, NODS, 0, I36, 0, 0 }, {"ext", "t,r,+A,+C", 0x0000002c, 0xfc00003f, WR_1|RD_2, 0, I1, 0, 0 }, {"floor.l.d", "T,V", 0x5400433b, 0xfc00ffff, WR_1|RD_2|FP_D, 0, I1, 0, 0 }, {"floor.l.s", "T,V", 0x5400033b, 0xfc00ffff, WR_1|RD_2|FP_S|FP_D, 0, I1, 0, 0 }, |