Intel 80C188EC User Manual page 490

Table D-2. Instruction Set Summary (Continued)
Function
PROCESSOR CONTROL INSTRUCTIONS
CLC = Clear carry
CMC = Complement carry
STC = Set carry
CLD = Clear direction
STD = Set direction
CLI = Clear interrupt
STI = Set interrupt
HLT = Halt
WAIT = Wait
LOCK = Bus lock prefix
ESC = Math coprocessor escape
NOP = No operation
SEGMENT OVERRIDE PREFIX
CS
SS
DS
ES
NOTES:
1. Clock cycles are given for 8-bit/16-bit operations.
2. Clock cycles are given for jump not taken/jump taken.
3. Clock cycles are given for interrupt taken/interrupt not taken.
4. If TEST = 0
Shading indicates additions and enhancements to the 8086/8088 instruction set. See Appendix A, "80C186
Instruction Set Additions and Extensions," for details.
Table D-3. Machine Instruction Decoding Guide
Byte 1
Hex Binary
00 0000 0000 mod reg r/m
01 0000 0001 mod reg r/m
02 0000 0010 mod reg r/m
03 0000 0011 mod reg r/m
04 0000 0100 data-8
05 0000 0101 data-lo
06 0000 0110
07 0000 0111
08 0000 0100 mod reg r/m
INSTRUCTION SET OPCODES AND CLOCK CYCLES
1 1 1 1 1 0 0 0
1 1 1 1 0 1 0 1
1 1 1 1 1 0 0 1
1 1 1 1 1 1 0 0
1 1 1 1 1 1 0 1
1 1 1 1 1 0 1 0
1 1 1 1 1 0 1 1
1 1 1 1 0 1 0 0
1 0 0 1 1 0 1 1
1 1 1 1 0 0 0 0
1 1 0 1 1 M M M mod PPP r/m
1 0 0 1 0 0 0 0
0 0 1 0 1 1 1 0
0 0 1 1 0 1 1 0
0 0 1 1 1 1 1 0
0 0 1 0 0 1 1 0
Byte 2 Bytes 3–6
(disp-lo),(disp-hi)
(disp-lo),(disp-hi)
(disp-lo),(disp-hi)
(disp-lo),(disp-hi)
data-hi
(disp-lo),(disp-hi)
Format
ASM-86 Instruction Format
add reg8/mem8, reg8
add reg16/mem16,reg16
add reg8,reg8/mem8
add reg16,reg16/mem16
add AL,immed8
add AX,immed16
push ES
pop ES
or reg8/mem8,reg8
Clocks Notes
2
2
2
2
2
2
2
2
6 (4)
2
6
3
2
2
2
2
D-9