INSTRUCTION SET OPCODES AND CLOCK CYCLES
D-8
PROGRAM TRANSFER INSTRUCTIONS (Continued)
RET = Return from procedure
within segment
1 1 0 0 0 0 1 1
16
within segment adding immed to SP
1 1 0 0 0 0 1 0
data-low
data-high
18
intersegment
1 1 0 0 1 0 1 1
22
intersegment adding immed to SP
1 1 0 0 1 0 1 0
data-low
data-high
25
JMP = Unconditional jump
short/long
1 1 1 0 1 0 1 1
disp-low
14
direct within segment
1 1 1 0 1 0 0 1
disp-low
disp-high
14
reg/memory indirect within segment
1 1 1 1 1 1 1 1
mod 100 r/m
26
indirect intersegment
1 1 1 1 1 1 1 1
mod 101 r/m
(mod ?11)
11/17
direct intersegment
1 1 1 0 1 0 1 0
segment offset
14
selector
Iteration Control
LOOP = Loop CX times
1 1 1 0 0 0 1 0
disp
6/16
(2)
LOOPZ/LOOPE =Loop while zero/equal
1 1 1 0 0 0 0 1
disp
5/16
(2)
LOOPNZ/LOOPNE =
Loop while not zero/not equal
1 1 1 0 0 0 0 0
disp
5/16
(2)
JCXZ = Jump if CX = zero
1 1 1 0 0 0 1 1
disp
6/16
(2)
Interrupts
INT = Interrupt
Type specified
1 1 0 0 1 1 0 1
type
47
Type 3
1 1 0 0 1 1 0 0
45
INTO = Interrupt on overflow
1 1 0 0 1 1 1 0
48/4
(3)
BOUND = Detect value out of range
0 1 1 0 0 0 1 0
mod reg r/m
33-35
IRET = Interrupt return
1 1 0 0 1 1 1 1
28
Table D-2. Instruction Set Summary (Continued)
Function
Format
Clocks
Notes
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.
Содержание 80C186EA
Страница 1: ...80C186EA 80C188EA Microprocessor User s Manual...
Страница 2: ...80C186EA 80C188EA Microprocessor User s Manual 1995...
Страница 19: ......
Страница 20: ...1 Introduction...
Страница 21: ......
Страница 28: ...2 Overview of the 80C186 Family Architecture...
Страница 29: ......
Страница 79: ......
Страница 80: ...3 Bus Interface Unit...
Страница 81: ......
Страница 129: ......
Страница 130: ...4 Peripheral Control Block...
Страница 131: ......
Страница 139: ......
Страница 140: ...5 ClockGenerationand Power Management...
Страница 141: ......
Страница 165: ......
Страница 166: ...6 Chip Select Unit...
Страница 167: ......
Страница 190: ...7 Refresh Control Unit...
Страница 191: ......
Страница 205: ......
Страница 206: ...8 Interrupt Control Unit...
Страница 207: ......
Страница 239: ...INTERRUPT CONTROL UNIT 8 32...
Страница 240: ...9 Timer Counter Unit...
Страница 241: ......
Страница 265: ......
Страница 266: ...10 Direct Memory Access Unit...
Страница 267: ......
Страница 295: ...DIRECT MEMORY ACCESS UNIT 10 28...
Страница 296: ...11 Math Coprocessing...
Страница 297: ......
Страница 314: ...12 ONCE Mode...
Страница 315: ......
Страница 318: ...A 80C186 Instruction Set Additions and Extensions...
Страница 319: ......
Страница 330: ...B Input Synchronization...
Страница 331: ......
Страница 334: ...C Instruction Set Descriptions...
Страница 335: ......
Страница 383: ...INSTRUCTION SET DESCRIPTIONS C 48...
Страница 384: ...D Instruction Set Opcodes and Clock Cycles...
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Страница 408: ...Index...
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