参数资料
型号: ST7PLU09MAE
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8
封装: 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8
文件页数: 110/124页
文件大小: 1995K
代理商: ST7PLU09MAE
Instruction set
ST7LUS5, ST7LU05, ST7LU09
11.1.7
Relative mode (Direct, Indirect)
This addressing mode is used to modify the PC register value by adding an 8-bit signed
offset to it.
The relative addressing mode consists of two submodes:
Relative (direct)
The offset follows the opcode.
Relative (indirect)
The offset is defined in memory, of which the address follows the opcode.
11.2
Instruction groups
The ST7 family devices use an Instruction Set consisting of 63 instructions. The instructions
may be subdivided into 13 main groups as illustrated in the following Table 59:
Short instructions only
CLR
Clear
INC, DEC
Increment/Decrement
TNZ
Test Negative or Zero
CPL, NEG
1 or 2 Complement
BSET, BRES
Bit Operations
BTJT, BTJF
Bit Test and Jump Operations
SLL, SRL, SRA, RLC,
RRC
Shift and Rotate Operations
SWAP
Swap Nibbles
CALL, JP
Call or Jump subroutine
Table 57.
Instructions supporting direct, indexed, indirect and indirect indexed
addressing modes (continued)
Type
Instruction
Function
Table 58.
Available relative direct/indirect instructions
Instruction
Function
JRxx
Conditional Jump
CALLR
Call Relative
Table 59.
Instruction groups
Group
Instructions
Load and Transfer
LD
CLR
Stack operation
PUSH
POP
RSP
Increment/Decrement
INC
DEC
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