Motorola CPU32 Reference Manual page 213

TRAPcc
Operation:
Assembler
Syntax:
Attributes:
Description:
number 7). The address of the next instruction word (current PC) is pushed onto the
stack. If the condition is not true, the processor performs no operation and execution
continues with the next instruction. The immediate data operand must be placed in
the word(s) immediately following the operation word. It is available to the trap han-
dler. Condition code cc specifies one of the following conditions.
cc Name
CC Carry Clear
CS Carry Set
EQ Equal
F Never equal
GE Greater or Equal
GT Greater Than
HI High
LE Less or Equal
Condition Codes:
Not affected.
Instruction Format:
15 14 13
0 1 0
Instruction Fields:
Condition field — The binary code for one of the conditions listed in the table.
Opmode field — Selects the instruction form.
010 — Instruction is followed by word-size operand.
011 — Instruction is followed by long-word-size operand.
100 — Instruction has no operand.
CPU32
REFERENCE MANUAL
Trap on Condition
If cc then TRAP
TRAPcc
TRAPcc.W #〈data〉TRAPcc.L #〈data〉
Unsized or Size = (Word, Long)
If the specified condition is true, causes a TRAPcc exception (vector
Code Description
0100 C
0101 C
0111 Z
0001 0
N • V; N • V
1100
1110 N • V • Z; N • V • Z
C • Z
0010
Z; N • V; N • V
1111
12 11 10 9
1 CONDITION
OPTIONAL WORD
OR LONG WORD
INSTRUCTION SET
cc Name
LS Low or Same
LT Less Than
MI Minus
N
Not Equal
E
PL Plus
T Always true
V
Overflow Clear
C
VS Overflow Set
8 7 6 5
1 1 1
TRAPcc
Code Description
0011 C; Z
N • V; N • V
1101
1011 N
0110 Z
1010 N
0000 1
1000 V
1001 V
4 3 2 1
1 1 OPMODE
MOTOROLA
0
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