Value | Bit Setting | Meaning |
|---|---|---|
TOP=<i> | 0x3800 | Register <i> is top of FPU stack |
B | 0x8000 | FPU busy |
C0 | 0x0100 | Condition bit 0 |
C1 | 0x0200 | Condition bit 1 |
C2 | 0x0400 | Condition bit 2 |
C3 | 0x4000 | Condition bit 3 |
ES | 0x0080 | Exception summary status |
SF | 0x0040 | Stack fault |
EF=PE | 0x0020 | Precision exception |
EF=UE | 0x0010 | Underflow exception |
EF=OE | 0x0008 | Overflow exception |
EF=ZE | 0x0004 | Zero divide exception |
EF=DE | 0x0002 | Denormalized operand exception |
EF=IE | 0x0001 | Invalid operation exception |