Motorola 68000 - Page 53

51
The 68000's Instruction Set
Attributes: Size = byte
Description: The specified condition code is tested. If the condition is true, the
bits at the effective address are all set to one (i.e., $FF). Otherwise,
the bits at the effective address are set to zeros (i.e., $00).
SCC set on carry clear C
SCS set on carry set C
SEQ set on equal Z
SGE set on greater than or equal N.V + N.V
SGT set on greater than N.V.Z + N.V.Z
SHI set on higher than C.Z
SLE set on less than or equal Z + N.V + N.V
SLS set on lower than or same C + Z
SLT set on less than N.V + N.V
SMI set on minus (i.e., negative) N
SNE set on not equal Z
SPL set on plus (i.e., positive) N
SVC set on overflow clear V
SVS set on overflow set V
SF set on false (i.e., set never) 0
ST set on true (i.e., set always) 1
Condition codes: X N Z V C
- - - - -
Destination operand addressing modes
STOP Load status register and stop
Operation: IF [S] = 1 THEN
[SR]
← <data>
STOP
ELSE TRAP
Syntax: STOP #<data>
Sample syntax: STOP #$2700
STOP #SetUp