參數(shù)資料
型號: μPD703008
廠商: NEC Corp.
英文描述: 16/32 Bit RISC Microcontrollers(16/32位RISC微控制器)
中文描述: 16/32位RISC微控制器(16/32位的RISC微控制器)
文件頁數(shù): 62/141頁
文件大小: 374K
代理商: ΜPD703008
CHAPTER 5 INSTRUCTION
50
JR
Jump Relative
Instruction format
JR disp22
Operation
PC
PC + sign-extend (disp22)
Format
Format V
Op code
15
0 31
16
0000011110dddddd ddddddddddddddd0
ddddddddddddddddddddd is the higher 21 bits of disp22.
Flag
CY
OV
S
Z
SAT
Instruction
JR Jump Relative
Explanation
Adds the 22-bit displacement, sign-extended to word length, to the current PC value and stores
the value in the PC, and then transfers control to that PC. Bit 0 of the 22-bit displacement is
masked to 0.
Remark
The current PC value used for the calculation is the address of the first byte of this instruction
itself. Therefore, if the displacement value is 0, the jump destination is this instruction.
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