System Control Instructions - Motorola MC68340 User Manual

To specify conditions for change in program control, condition codes must be substituted
for the letters "cc" in conditional program control opcodes. Condition test mnemonics are
given below. Refer to 5.3.3.10 Condition Tests for detailed information on condition
codes.
CC — Carry clear
CS — Carry set
EQ — Equal
F — False*
GE — Greater or equal
GT — Greater than
HI — High
LE — Less or equal
*Not applicable to the Bcc instruction
5.3.3.9 SYSTEM CONTROL INSTRUCTIONS. Privileged instructions, trapping
instructions, and instructions that use or modify the CCR provide system control
operations. All of these instructions cause the processor to flush the instruction pipeline.
Table 5-11 summarizes the instructions. The preceding list of condition tests also applies
to the TRAPcc instruction. Refer to 5.3.3.10 Condition Tests for detailed information on
condition codes.
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LS — Low or same
LT — Less than
MI — Minus
NE — Not equal
PL — Plus
T — True
VC — Overflow clear
VS — Overflow set
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