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| author | Alan Modra <amodra@gmail.com> | 2007-04-20 12:25:15 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2007-04-20 12:25:15 +0000 |
| commit | b84bf58af1e7ff1e983128c79145d5653cfe02ca (patch) | |
| tree | c41ba7612fedd4b9b6fbd656320fe43e187ce5ca /opcodes/ppc-dis.c | |
| parent | 1f90c7572b48869c092b1c91341387859ccd2c06 (diff) | |
| download | gdb-b84bf58af1e7ff1e983128c79145d5653cfe02ca.zip gdb-b84bf58af1e7ff1e983128c79145d5653cfe02ca.tar.gz gdb-b84bf58af1e7ff1e983128c79145d5653cfe02ca.tar.bz2 | |
include/opcode/
* ppc.h (struct powerpc_operand): Replace "bits" with "bitm".
(num_powerpc_operands): Declare.
(PPC_OPERAND_SIGNED et al): Redefine as hex.
(PPC_OPERAND_PLUS1): Define.
opcodes/
* ppc-dis.c (print_insn_powerpc): Adjust for struct powerpc_operand
change.
* ppc-opc.c (powerpc_operands): Replace bit count with bit mask
in all entries. Add PPC_OPERAND_SIGNED to DE entry. Remove
references to following deleted functions.
(insert_bd, extract_bd, insert_dq, extract_dq): Delete.
(insert_ds, extract_ds, insert_de, extract_de): Delete.
(insert_des, extract_des, insert_li, extract_li): Delete.
(insert_nb, insert_rsq, insert_rtq, insert_ev2, extract_ev2): Delete.
(insert_ev4, extract_ev4, insert_ev8, extract_ev8): Delete.
(num_powerpc_operands): New constant.
(XSPRG_MASK): Remove entire SPRG field.
(powerpc_opcodes <bcctre, bcctrel>): Use XLBB_MASK not XLYBB_MASK.
gas/
* messages.c (as_internal_value_out_of_range): Extend to report
errors for values with invalid low bits set.
* config/tc-ppc.c (ppc_setup_opcodes): Check powerpc_operands bitm
fields. Check that operands and opcode fields are disjoint.
(ppc_insert_operand): Check operands using mask rather than bit
count. Check low bits too. Handle PPC_OPERAND_PLUS1. Adjust
insertion code.
(md_apply_fix): Adjust for struct powerpc_operand change.
Diffstat (limited to 'opcodes/ppc-dis.c')
| -rw-r--r-- | opcodes/ppc-dis.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/opcodes/ppc-dis.c b/opcodes/ppc-dis.c index 691c2f6..557e5a5 100644 --- a/opcodes/ppc-dis.c +++ b/opcodes/ppc-dis.c @@ -222,10 +222,18 @@ print_insn_powerpc (bfd_vma memaddr, value = (*operand->extract) (insn, dialect, &invalid); else { - value = (insn >> operand->shift) & ((1 << operand->bits) - 1); - if ((operand->flags & PPC_OPERAND_SIGNED) != 0 - && (value & (1 << (operand->bits - 1))) != 0) - value -= 1 << operand->bits; + value = (insn >> operand->shift) & operand->bitm; + if ((operand->flags & PPC_OPERAND_SIGNED) != 0) + { + /* BITM is always some number of zeros followed by some + number of ones, followed by some numer of zeros. */ + unsigned long top = operand->bitm; + /* top & -top gives the rightmost 1 bit, so this + fills in any trailing zeros. */ + top |= (top & -top) - 1; + top &= ~(top >> 1); + value = (value ^ top) - top; + } } /* If the operand is optional, and the value is zero, don't @@ -258,7 +266,7 @@ print_insn_powerpc (bfd_vma memaddr, (*info->fprintf_func) (info->stream, "%ld", value); else { - if (operand->bits == 3) + if (operand->bitm == 7) (*info->fprintf_func) (info->stream, "cr%ld", value); else { |