aboutsummaryrefslogtreecommitdiff
path: root/sim
diff options
context:
space:
mode:
Diffstat (limited to 'sim')
-rw-r--r--sim/mn10300/ChangeLog4
-rw-r--r--sim/mn10300/simops.c12
2 files changed, 11 insertions, 5 deletions
diff --git a/sim/mn10300/ChangeLog b/sim/mn10300/ChangeLog
index 6731891..a1e0301 100644
--- a/sim/mn10300/ChangeLog
+++ b/sim/mn10300/ChangeLog
@@ -1,3 +1,7 @@
+Thu Dec 5 22:26:31 1996 Jeffrey A Law (law@cygnus.com)
+
+ * simops.c: Fix thinkos in last change to "inc dn".
+
Wed Dec 4 10:57:53 1996 Jeffrey A Law (law@cygnus.com)
* simops.c: "add imm,sp" does not effect the condition codes.
diff --git a/sim/mn10300/simops.c b/sim/mn10300/simops.c
index c3ecc4e..cebd184 100644
--- a/sim/mn10300/simops.c
+++ b/sim/mn10300/simops.c
@@ -1424,16 +1424,18 @@ void OP_F270 ()
void OP_40 ()
{
int z,n,c,v;
- unsigned int value;
+ unsigned int value, imm, reg1;
- value = State.regs[REG_D0 + ((insn & 0xc) >> 2)] + 1;
+ reg1 = State.regs[REG_D0 + ((insn & 0xc) >> 2)];
+ imm = 1;
+ value = reg1 + imm;
State.regs[REG_D0 + ((insn & 0xc) >> 2)] = value;
z = (value == 0);
n = (value & 0x80000000);
- c = (reg1 < reg2);
- v = ((reg2 & 0x80000000) != (reg1 & 0x80000000)
- && (reg2 & 0x80000000) != (value & 0x80000000));
+ c = (reg1 < imm);
+ v = ((reg1 & 0x80000000) != (imm & 0x80000000)
+ && (reg1 & 0x80000000) != (value & 0x80000000));
PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
PSW |= ((z ? PSW_Z : 0) | ( n ? PSW_N : 0)