diff options
| author | Dmitry Selyutin <ghostmansd@gmail.com> | 2022-05-12 10:32:11 +0300 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2022-05-25 12:13:44 +0930 |
| commit | 8e5eb8e1b0cb2a408008a3e40e571f193917dcc8 (patch) | |
| tree | 57e88dbca3937b38a3dcb22cb7a316b27e5773c9 /include | |
| parent | f59e7b128933d96b53ee948ab306334e87b2f03c (diff) | |
ppc: extend opindex to 16 bits
With the upcoming SVP64 extension[0] to PowerPC architecture, it became
evident that PowerPC operand indices no longer fit 8 bits. This patch
switches the underlying type to uint16_t, also introducing a special
typedef so that any future extension goes even smoother.
[0] https://libre-soc.org
include/
* opcode/ppc.h (ppc_opindex_t): New typedef.
(struct powerpc_opcode): Use it.
(PPC_OPINDEX_MAX): Define.
gas/
* write.h (struct fix): Increase size of fx_pcrel_adjust.
Reorganise.
* config/tc-ppc.c (insn_validate): Use ppc_opindex_t for operands.
(md_assemble): Likewise.
(md_apply_fix): Likewise. Mask fx_pcrel_adjust with PPC_OPINDEX_MAX.
(ppc_setup_opcodes): Adjust opcode index assertion.
opcodes/
* ppc-dis.c (skip_optional_operands): Use ppc_opindex_t for
operand pointer.
(lookup_powerpc, lookup_prefix, lookup_vle, lookup_spe2): Likewise.
(print_insn_powerpc): Likewise.
Diffstat (limited to 'include')
| -rw-r--r-- | include/opcode/ppc.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/opcode/ppc.h b/include/opcode/ppc.h index a9c2529831..7bc6ee216e 100644 --- a/include/opcode/ppc.h +++ b/include/opcode/ppc.h @@ -29,6 +29,12 @@ extern "C" { #endif typedef uint64_t ppc_cpu_t; +typedef uint16_t ppc_opindex_t; + +/* Smaller of ppc_opindex_t and fx_pcrel_adjust maximum. Note that + values extracted from fx_pcrel_adjust are masked with this constant, + effectively making the field unsigned. */ +#define PPC_OPINDEX_MAX 0xffff /* The opcode table is an array of struct powerpc_opcode. */ @@ -60,7 +66,7 @@ struct powerpc_opcode /* An array of operand codes. Each code is an index into the operand table. They appear in the order which the operands must appear in assembly code, and are terminated by a zero. */ - unsigned char operands[8]; + ppc_opindex_t operands[8]; }; /* The table itself is sorted by major opcode number, and is otherwise |