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ISA 2.07 (ie, POWER8) added the rfebb instruction which takes one operand with the value of either a 0 or 1. It also defines an extended mnemonic with no operands (ie, "rfebb") that is supposed to be equivalent to "rfebb 1". I implemented rfebb's lone operand with PPC_OPERAND_OPTIONAL, but the problem is, optional operands that are ommitted always default to the value 0, which is wrong in this case. I have added support for allowing non-zero default values by adding an additional flag PPC_OPERAND_OPTIONAL_VALUE that specifies that the default operand value to be used is stored in the SHIFT field of the operand field immediately following this one. This fixes the rfebb issue. I also fixed the mftb and mfcr instructions so they use the same mechanism. This allows us to flag invalid uses of mfcr where we explicitly pass in a zero FXM value, like the use in a2.[sd]. include/opcode/ * ppc.h (PPC_OPERAND_OPTIONAL_VALUE): New. (ppc_optional_operand_value): New inline function. opcodes/ * ppc-dis.h (skip_optional_operands): Use ppc_optional_operand_value. * ppc-opc.c (FXM4): Add non-zero optional value. (TBR): Likewise. (SXL): Likewise. (insert_fxm): Handle new default operand value. (extract_fxm): Likewise. (insert_tbr): Likewise. (extract_tbr): Likewise. gas/ * config/tc-ppc.c (md_assemble): Use ppc_optional_operand_value. Allow for optional operands without insert functions. gas/testsuite/ * gas/ppc/power8.d: Fixup rfebb test results. * gas/ppc/a2.s: Fix invalid mfcr test. * gas/ppc/a2.d: Likewise. |
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| aarch64.h | ||
| alpha.h | ||
| arc.h | ||
| arm.h | ||
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| bfin.h | ||
| cgen.h | ||
| ChangeLog | ||
| ChangeLog-9103 | ||
| convex.h | ||
| cr16.h | ||
| cris.h | ||
| crx.h | ||
| d10v.h | ||
| d30v.h | ||
| dlx.h | ||
| ft32.h | ||
| h8300.h | ||
| hppa.h | ||
| i370.h | ||
| i386.h | ||
| i860.h | ||
| i960.h | ||
| ia64.h | ||
| m68hc11.h | ||
| m68k.h | ||
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| metag.h | ||
| mips.h | ||
| mmix.h | ||
| mn10200.h | ||
| mn10300.h | ||
| moxie.h | ||
| msp430-decode.h | ||
| msp430.h | ||
| nds32.h | ||
| nios2.h | ||
| nios2r1.h | ||
| np1.h | ||
| ns32k.h | ||
| pdp11.h | ||
| pj.h | ||
| pn.h | ||
| ppc.h | ||
| pyr.h | ||
| rl78.h | ||
| rx.h | ||
| s390.h | ||
| score-datadep.h | ||
| score-inst.h | ||
| sparc.h | ||
| spu-insns.h | ||
| spu.h | ||
| tahoe.h | ||
| tic4x.h | ||
| tic6x-control-registers.h | ||
| tic6x-insn-formats.h | ||
| tic6x-opcode-table.h | ||
| tic6x.h | ||
| tic30.h | ||
| tic54x.h | ||
| tic80.h | ||
| tilegx.h | ||
| tilepro.h | ||
| v850.h | ||
| vax.h | ||
| visium.h | ||
| xgate.h | ||