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Remove ppc860, ppc750cl, ppc7450 insns from common ppc.

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Back in the day support for these processors was added, we probably
didn't want to waste PPC_OPCODE bits on minor variations.  I've had a
complaint that disassembly of mfspr/mtspr was wrong for power8.  This
patch fixes that problem.

Note that since -m860/-m850/-m821 are new gas options enabling the
mpc8xx specific mfspr/mtspr variants it is possible that this change
will break some mpc8xx assembly code.  ie. you might need to modify
makefiles to pass -m860 to gas.

include/opcode/
	* ppc.h (PPC_OPCODE_750, PPC_OPCODE_7450, PPC_OPCODE_860): Define.
opcodes/
	* ppc-opc.c (PPC750, PPC7450, PPC860): Define using PPC_OPCODE_*.
	* ppc-dis.c (ppc_opts): Add 821, 850 and 860 entries.  Add
	PPC_OPCODE_7450 to 7450 entry.  Add PPC_OPCODE_750 to 750cl entry.
gas/
	* config/tc-ppc.c (md_show_usage): Add -m821, -m850, -m860.
	* doc/c-ppc.texi (PowerPC-Opts): Likewise.
gas/testsuite/
	* gas/ppc/titan.d: Correct mfmcsrr0 disassembly.
This commit is contained in:
Alan Modra 2015-07-03 10:56:26 +09:30
parent 1b485e6778
commit ef5a96d564
10 changed files with 46 additions and 8 deletions
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4
include/opcode/ChangeLog
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@ -1,3 +1,7 @@
2015-07-03 Alan Modra <amodra@gmail.com>
* ppc.h (PPC_OPCODE_750, PPC_OPCODE_7450, PPC_OPCODE_860): Define.
2015-07-01 Sandra Loosemore <sandra@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>

9
include/opcode/ppc.h
View file

@ -195,6 +195,15 @@ extern const int vle_num_opcodes;
that isn't a superset of POWER8, we can define this to its own mask. */
#define PPC_OPCODE_HTM PPC_OPCODE_POWER8
/* Opcode is supported by ppc750cl. */
#define PPC_OPCODE_750 0x4000000000ull
/* Opcode is supported by ppc7450. */
#define PPC_OPCODE_7450 0x8000000000ull
/* Opcode is supported by ppc821/850/860. */
#define PPC_OPCODE_860 0x10000000000ull
/* A macro to extract the major opcode from an instruction. */
#define PPC_OP(i) (((i) >> 26) & 0x3f)