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| author | Nick Clifton <nickc@redhat.com> | 2009-11-16 11:47:36 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2009-11-16 11:47:36 +0000 |
| commit | f7c21dc7b864993ed09c1c32bc1de9071da40348 (patch) | |
| tree | 1bac3d53f940355d897dba10a9607448f6bccc90 /gas/config | |
| parent | c4d1af07abcd0c3fa07a5ba8abe6686293d557cf (diff) | |
| download | gdb-f7c21dc7b864993ed09c1c32bc1de9071da40348.zip gdb-f7c21dc7b864993ed09c1c32bc1de9071da40348.tar.gz gdb-f7c21dc7b864993ed09c1c32bc1de9071da40348.tar.bz2 | |
* config/tc-arm.c (parse_operands): Encode APSR_nzcv as r15.
(do_vmrs): New function.
(do_vmsr): New function.
(insns): Add vmrs and vmsr.
* gas/arm/vfp1xD.s: Add vmrs and vmsr instructions.
* gas/arm/vfp1xD.d: Update expected disassembly.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-arm.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index aee8516..9dbff11 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -6303,6 +6303,8 @@ parse_operands (char *str, const unsigned char *pattern) if (found != 15) goto failure; inst.operands[i].isvec = 1; + /* APSR_nzcv is encoded in instructions as if it were the REG_PC. */ + inst.operands[i].reg = REG_PC; } else goto failure; @@ -7615,6 +7617,49 @@ do_vfp_nsyn_msr (void) } static void +do_vmrs (void) +{ + unsigned Rt = inst.operands[0].reg; + + if (thumb_mode && inst.operands[0].reg == REG_SP) + { + inst.error = BAD_SP; + return; + } + + /* APSR_ sets isvec. All other refs to PC are illegal. */ + if (!inst.operands[0].isvec && inst.operands[0].reg == REG_PC) + { + inst.error = BAD_PC; + return; + } + + if (inst.operands[1].reg != 1) + first_error (_("operand 1 must be FPSCR")); + + inst.instruction |= (Rt << 12); +} + +static void +do_vmsr (void) +{ + unsigned Rt = inst.operands[1].reg; + + if (thumb_mode) + reject_bad_reg (Rt); + else if (Rt == REG_PC) + { + inst.error = BAD_PC; + return; + } + + if (inst.operands[0].reg != 1) + first_error (_("operand 0 must be FPSCR")); + + inst.instruction |= (Rt << 12); +} + +static void do_mrs (void) { if (do_vfp_nsyn_mrs () == SUCCESS) @@ -17168,6 +17213,8 @@ static const struct asm_opcode insns[] = cCE("fmrs", e100a10, 2, (RR, RVS), vfp_reg_from_sp), cCE("fmsr", e000a10, 2, (RVS, RR), vfp_sp_from_reg), cCE("fmstat", ef1fa10, 0, (), noargs), + cCE("vmrs", ef10a10, 2, (APSR_RR, RVC), vmrs), + cCE("vmsr", ee10a10, 2, (RVC, RR), vmsr), cCE("fsitos", eb80ac0, 2, (RVS, RVS), vfp_sp_monadic), cCE("fuitos", eb80a40, 2, (RVS, RVS), vfp_sp_monadic), cCE("ftosis", ebd0a40, 2, (RVS, RVS), vfp_sp_monadic), |