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(decode_opcode): RXO_branchrel is relative to the opcode's PC, not

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the address following the opcode.
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DJ Delorie
2010-12-14 23:39:03 +00:00
parent 29cfc22f89
commit 45eb4d476d
2 changed files with 4 additions and 2 deletions
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2
sim/rx/ChangeLog
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@ -2,6 +2,8 @@
* rx.c (decode_opcode): For "MVFC PC,", use the address of the * rx.c (decode_opcode): For "MVFC PC,", use the address of the
opcode, not the address following the opcode. opcode, not the address following the opcode.
(decode_opcode): RXO_branchrel is relative to the opcode's PC, not
the address following the opcode.
2010-11-11 DJ Delorie <dj@redhat.com> 2010-11-11 DJ Delorie <dj@redhat.com>

4
sim/rx/rx.c
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@ -1087,10 +1087,10 @@ decode_opcode ()
break; break;
case RXO_branchrel: case RXO_branchrel:
if (GS()) if (opcode->op[1].type == RX_Operand_None || GS())
{ {
int delta = GD(); int delta = GD();
regs.r_pc += delta; regs.r_pc = opcode_pc + delta;
#ifdef CYCLE_ACCURATE #ifdef CYCLE_ACCURATE
/* Note: specs say 3, chip says 2. */ /* Note: specs say 3, chip says 2. */
if (delta >= 0 && delta < 16 if (delta >= 0 && delta < 16