W742E Datasheet, PDF (54/60 Pages) Winbond – 4 BIT MICROCONTROLLER

W742E/C811
Instruction set, continued
MACHINE CODE
MNEMONIC
Subroutine
0110 0aaa aaaa aaaa CALL
L
0000 0001 0000 0000 RTN
0000 0001 I I I I I I I I RTN
#I
FUNCTION
FLAG
W/C
AFFECTED
STACK ← (PC)+1, TAB0, TAB1, TAB2, TAB3,
1/1
DBKRL,DBKRH,WRP,ROMPR,PAGE,ACC,CF
PC13 ~ PC0 ← (ROMPR)×800H+L10 ~ L0
Pop PC
1/1
Pop PC; Pop other registers by I setting
1/1
refer to below table
Bit definition of I
I = 0000 0000
bit0 = 1
bit1 = 1
bit2 = 1
bit3 = 1
bit4 = 1
bit5 = 1
bit6 = 1
Pop PC from stack only
Pop _{TAB0, TAB1, TAB2, TAB3} from stack
Pop _{DBKRL, DBKRH} from stack
Pop _WRP from stack
Pop _ROMPR from stack
Pop _PAGE from stack
Pop _ACC from stack
Pop _CF from stack
- 54 -