MC68030 Datasheet, PDF (95/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Instruction Set Summary
3.3.2 Conditional Tests
Table 3–13 lists the condition names, encodings, and tests for the conditional branch and
set instructions. The test associated with each condition is a logical formula using the current
states of the condition codes. If this formula evaluates to one, the condition is true. If the
formula evaluates to zero, the condition is false. For example, the T condition is always true,
and the EQ condition is true only if the Z bit condition code is currently true.
Table 3-13. Conditional Tests
Mnemonic
T*
F*
HI
LS
CC(HS)
CS(LO)
NE
EQ
VC
VS
PL
MI
GE
LT
GT
LE
Condition
True
False
High
Low or Same
Carry Clear
Carry Set
Not Equal
Equal
Overflow Clear
Overflow Set
Plus
Minus
Greater or Equal
Less Than
Greater Than
Less or Equal
• = Boolean AND
+ = Boolean OR
N = Boolean NOT N
*Not available for the Bcc instruction.
Encoding
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Test
1
0
C •Z
C+Z
C
C
Z
Z
V
V
N
N
N •V + N •V
N •V + N •V
N •V •Z + N • V •Z
Z + N •V + N • V
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MC68030 USER’S MANUAL
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