* config/tc-arm.c (do_vmrs): Accept priviledged mode VFP system

	registers.
	(do_vmsr): Likewise.
	(arm_opcode_insns): Do not default to using the FPSCR register in
	the VMRS and VMSR registers.

	* gas/arm/vfp1xD.s: Add tests of the VMSR ad VMRS instructions in
	priviledged modes.
	* gas/arm/vfp1xD.d: Update expected output.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 9209d4d..b6fe7e3 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,11 @@
+2012-03-20  Nick Clifton  <nickc@redhat.com>
+
+       * config/tc-arm.c (do_vmrs): Accept priviledged mode VFP system
+       registers.
+       (do_vmsr): Likewise.
+       (arm_opcode_insns): Do not default to using the FPSCR register in
+       the VMRS and VMSR registers.
+
 2012-03-16  Roland McGrath  <mcgrathr@google.com>
 
        * config/tc-i386.h [TE_NACL] (ELF_TARGET_FORMAT32, ELF_TARGET_FORMAT64):

diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 8b0f6da..9222aff 100644 (file)
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -8102,8 +8102,18 @@ do_vmrs (void)
       return;
     }
 
-  if (inst.operands[1].reg != 1)
-    first_error (_("operand 1 must be FPSCR"));
+  switch (inst.operands[1].reg)
+    {
+    case 0: /* FPSID */
+    case 1: /* FPSCR */
+    case 6: /* MVFR1 */
+    case 7: /* MVFR0 */
+    case 8: /* FPEXC */
+      inst.instruction |= (inst.operands[1].reg << 16);
+      break;
+    default:
+      first_error (_("operand 1 must be a VFP extension System Register"));
+    }
 
   inst.instruction |= (Rt << 12);
 }
@@ -8121,8 +8131,16 @@ do_vmsr (void)
       return;
     }
 
-  if (inst.operands[0].reg != 1)
-    first_error (_("operand 0 must be FPSCR"));
+  switch (inst.operands[0].reg)
+    {
+    case 0: /* FPSID  */
+    case 1: /* FPSCR  */
+    case 8: /* FPEXC */
+      inst.instruction |= (inst.operands[0].reg << 16);
+      break;
+    default:
+      first_error (_("operand 0 must be FPSID or FPSCR pr FPEXC"));
+    }
 
   inst.instruction |= (Rt << 12);
 }
@@ -18147,8 +18165,8 @@ 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("vmrs",   ef00a10, 2, (APSR_RR, RVC),   vmrs),
+ cCE("vmsr",   ee00a10, 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),

diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 7ac59cd..5fc3567 100644 (file)
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2012-03-20  Nick Clifton  <nickc@redhat.com>
+
+       * gas/arm/vfp1xD.s: Add tests of the VMSR ad VMRS instructions in
+       priviledged modes.
+       * gas/arm/vfp1xD.d: Update expected output.
+
 2012-03-16  Matthew Gretton-Dann  <matther.gretton-dann@arm.com>
 
        * gas/testsuite/gas/arm/any-idiv.d: New testcase.

diff --git a/gas/testsuite/gas/arm/vfp1xD.d b/gas/testsuite/gas/arm/vfp1xD.d
index eebc72b..62b1957 100644 (file)
--- a/gas/testsuite/gas/arm/vfp1xD.d
+++ b/gas/testsuite/gas/arm/vfp1xD.d
@@ -278,5 +278,12 @@ Disassembly of section .text:
 0+430 <[^>]*> eee1ba10         vmsr    fpscr, fp
 0+434 <[^>]*> eee1ca10         vmsr    fpscr, ip
 0+438 <[^>]*> eee1ea10         vmsr    fpscr, lr
-0+43c <[^>]*> e1a00000         nop                     ; \(mov r0, r0\)
-
+0+43c <[^>]*> eee01a10         vmsr    fpsid, r1
+0+440 <[^>]*> eee82a10         vmsr    fpexc, r2
+0+444 <[^>]*> eef03a10         vmrs    r3, fpsid
+0+448 <[^>]*> eef64a10         vmrs    r4, mvfr1
+0+44c <[^>]*> eef75a10         vmrs    r5, mvfr0
+0+450 <[^>]*> eef86a10         vmrs    r6, fpexc
+0+454 <[^>]*> e1a00000         nop                     ; \(mov r0, r0\)
+0+458 <[^>]*> e1a00000         nop                     ; \(mov r0, r0\)
+0+45c <[^>]*> e1a00000         nop                     ; \(mov r0, r0\)

diff --git a/gas/testsuite/gas/arm/vfp1xD.s b/gas/testsuite/gas/arm/vfp1xD.s
index 274a0b1..0bf58b2 100644 (file)
--- a/gas/testsuite/gas/arm/vfp1xD.s
+++ b/gas/testsuite/gas/arm/vfp1xD.s
@@ -381,4 +381,14 @@ F:
        vmsr    FPSCR, r12
        vmsr    FPSCR, r14
 
+       @ Priviledged externsions to VMSR/VMRS instructions
+       vmsr    FPSID, r1
+       vmsr    FPEXC, r2
+       vmrs    r3, FPSID
+       vmrs    r4, MVFR1
+       vmrs    r5, MVFR0
+       vmrs    r6, FPEXC
+       
+       nop
+       nop
        nop