參數(shù)資料
型號(hào)： HT49R50
廠商： Holtek Semiconductor Inc.
元件分類： 8位微控制器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁數(shù)： 43/59頁
文件大?。?/td> 339K
代理商： HT49R50
RET A,x
Return and place immediate data in the accumulator
Description
The program counter is restored from the stack and the accumulator loaded
with the specified 8-bit immediate data.
Operation
PC
ACC
Stack
x
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RETI
Return from interrupt
Description
The program counter is restored from the stack, and interrupts are enabled
by setting the EMI bit. EMI is the enable master (global) interrupt bit (bit 0;
register INTC).
Operation
PC
EMI
Stack
1
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RL [m]
Rotate data memory left
Description
The contents of the specified data memory are rotated one bit left with bit 7
rotated into bit 0.
Operation
[m].(i+1)
[m].0
[m].i; [m].i:bit i of the data memory (i=0~6)
[m].7
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RLA [m]
Rotate data memory left and place result in the accumulator
Description
Data in the specified data memory is rotated one bit left with bit 7 rotated
into bit 0, leaving the rotated result in the accumulator. The contents of the
data memory remain unchanged.
Operation
ACC.(i+1)
ACC.0
[m].i; [m].i:bit i of the data memory (i=0~6)
[m].7
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT49R50
43
October 22, 1999
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