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* config/tc-arm.c (parse_operands): Encode APSR_nzcv as r15.

Browse Source 
(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.
This commit is contained in:
Nick Clifton
2009-11-16 11:47:36 +00:00
parent c4d1af07ab
commit f7c21dc7b8
5 changed files with 122 additions and 3 deletions
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7
gas/ChangeLog
View File

@ -1,3 +1,10 @@
2009-11-16 Viktor Kutuzov <vkutuzov@accesssoftek.com>
* config/tc-arm.c (parse_operands): Encode APSR_nzcv as r15.
(do_vmrs): New function.
(do_vmsr): New function.
(insns): Add vmrs and vmsr.
2009-11-13 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (md_assemble): Check destination operand

47
gas/config/tc-arm.c
View File

@ -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;
@ -7614,6 +7616,49 @@ do_vfp_nsyn_msr (void)
return SUCCESS;
}
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)
{
@ -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),

5
gas/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2009-11-16 Viktor Kutuzov <vkutuzov@accesssoftek.com>
* gas/arm/vfp1xD.s: Add vmrs and vmsr instructions.
* gas/arm/vfp1xD.d: Update expected disassembly.
2009-11-13 H.J. Lu <hongjiu.lu@intel.com>
* gas/i386/lock-1-intel.d: Updated.

33
gas/testsuite/gas/arm/vfp1xD.d
View File

@ -249,5 +249,34 @@ Disassembly of section .text:
0+3bc <[^>]*> eee70a10 (vmsr|fmxr) mvfr0, r0
0+3c0 <[^>]*> eee60a10 (vmsr|fmxr) mvfr1, r0
0+3c4 <[^>]*> eeec0a10 (vmsr|fmxr) <impl def 0xc>, r0
0+3c8 <[^>]*> e1a00000 nop ; \(mov r0, r0\)
0+3cc <[^>]*> e1a00000 nop ; \(mov r0, r0\)
0+3c8 <[^>]*> eef10a10 vmrs r0, fpscr
0+3cc <[^>]*> eef11a10 vmrs r1, fpscr
0+3d0 <[^>]*> eef12a10 vmrs r2, fpscr
0+3d4 <[^>]*> eef13a10 vmrs r3, fpscr
0+3d8 <[^>]*> eef14a10 vmrs r4, fpscr
0+3dc <[^>]*> eef15a10 vmrs r5, fpscr
0+3e0 <[^>]*> eef16a10 vmrs r6, fpscr
0+3e4 <[^>]*> eef17a10 vmrs r7, fpscr
0+3e8 <[^>]*> eef18a10 vmrs r8, fpscr
0+3ec <[^>]*> eef19a10 vmrs r9, fpscr
0+3f0 <[^>]*> eef1aa10 vmrs sl, fpscr
0+3f4 <[^>]*> eef1ba10 vmrs fp, fpscr
0+3f8 <[^>]*> eef1ca10 vmrs ip, fpscr
0+3fc <[^>]*> eef1ea10 vmrs lr, fpscr
0+400 <[^>]*> eef1fa10 vmrs APSR_nzcv, fpscr
0+404 <[^>]*> eee10a10 vmsr fpscr, r0
0+408 <[^>]*> eee11a10 vmsr fpscr, r1
0+40c <[^>]*> eee12a10 vmsr fpscr, r2
0+410 <[^>]*> eee13a10 vmsr fpscr, r3
0+414 <[^>]*> eee14a10 vmsr fpscr, r4
0+418 <[^>]*> eee15a10 vmsr fpscr, r5
0+41c <[^>]*> eee16a10 vmsr fpscr, r6
0+420 <[^>]*> eee17a10 vmsr fpscr, r7
0+424 <[^>]*> eee18a10 vmsr fpscr, r8
0+428 <[^>]*> eee19a10 vmsr fpscr, r9
0+42c <[^>]*> eee1aa10 vmsr fpscr, sl
0+430 <[^>]*> eee1ba10 vmsr fpscr, fp
0+434 <[^>]*> eee1ca10 vmsr fpscr, ip
0+438 <[^>]*> eee1ea10 vmsr fpscr, lr
0+43c <[^>]*> e1a00000 nop ; \(mov r0, r0\)

33
gas/testsuite/gas/arm/vfp1xD.s
View File

@ -349,5 +349,36 @@ F:
fmxr mvfr1, r0
fmxr c12, r0
nop
@ ARM VMSR/VMRS instructions
vmrs r0, FPSCR
vmrs r1, FPSCR
vmrs r2, FPSCR
vmrs r3, FPSCR
vmrs r4, FPSCR
vmrs r5, FPSCR
vmrs r6, FPSCR
vmrs r7, FPSCR
vmrs r8, FPSCR
vmrs r9, FPSCR
vmrs r10, FPSCR
vmrs r11, FPSCR
vmrs r12, FPSCR
vmrs r14, FPSCR
vmrs APSR_nzcv, FPSCR
vmsr FPSCR, r0
vmsr FPSCR, r1
vmsr FPSCR, r2
vmsr FPSCR, r3
vmsr FPSCR, r4
vmsr FPSCR, r5
vmsr FPSCR, r6
vmsr FPSCR, r7
vmsr FPSCR, r8
vmsr FPSCR, r9
vmsr FPSCR, r10
vmsr FPSCR, r11
vmsr FPSCR, r12
vmsr FPSCR, r14
nop