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): 99/141頁
文件大?。?/td> 374K
代理商: ΜPD703008
87
CHAPTER 5 INSTRUCTION
TST1
Test Bit
Instruction format
TST1 bit#3, disp16 [reg1]
Operation
adr
GR [reg1] + sign-extend (disp16)
Z flag
Not (Load-memory-bit (adr,bit#3))
Format
Format VIII
Op code
15
0 31
16
11bbb111110RRRRR dddddddddddddddd
Flag
CY
OV
S
Z
1 if bit NO.bit#3 of memory disp16 [reg1] = 0.
0 if bit NO.bit#3 of memory disp16 [reg1] = 1.
SAT
Instruction
TST1 Test Bit
Explanation
Adds the data of general register reg1 to a 16-bit displacement, sign-extended to word length,
to generate a 32-bit address. Performs the test on the bit, specified by the 3-bit field “bbb”,
at the byte data location referenced by the generated address. If the specified bit is 0, the Z
flag is set to 1; if the bit is 1, the Z flag is reset to 0. The byte data, including the specified bit,
is not affected.
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