W742C813 Datasheet, PDF(50/56 Page) Winbond – 4 BIT MICROCONTROLLER

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W742C813 Datasheet, PDF (50/56 Pages) Winbond – 4 BIT MICROCONTROLLER

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W742E/C813

Instruction set, continued

Machine code

Branch

0111 0aaa aaaa aaaa

Mnemonic

JMP

L

1000 0aaa aaaa aaaa JB0

L

1001 0aaa aaaa aaaa JB1

L

1010 0aaa aaaa aaaa JB2

L

1011 0aaa aaaa aaaa JB3

L

1110 0aaa aaaa aaaa JZ

L

1100 0aaa aaaa aaaa JNZ

L

1111 0aaa aaaa aaaa JC

L

1101 0aaa aaaa aaaa JNC

L

0100 1000 0xxx xxxx DSKZ

R

0100 1000 1xxx xxxx DSKNZ R

1010 1000 0xxx xxxx SKB0

R

1010 1000 1xxx xxxx SKB1

R

1010 1001 0xxx xxxx SKB2

R

1010 1001 1xxx xxxx SKB3

R

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 affected W/C

PC14~PC0â(ROMPR)Ã800H+L10~L0

1/1

PC10~PC0âL10~L0; if ACC.0 = "1"

1/1

PC10~PC0âL10~L0; if ACC.1 = "1"

1/1

PC10~PC0âL10~L0; if ACC.2 = "1"

1/1

PC10~PC0âL10~L0; if ACC.3 = "1"

1/1

PC10~PC0âL10~L0; if ACC = 0

1/1

PC10~PC0âL10~L0; if ACC ! = 0

1/1

PC10~PC0âL10~L0; if CF = "1"

1/1

PC10~PC0âL10~L0; if CF ! = "1"

1/1

ACC, Râ(R) - 1; PC â (PC) + 2 if ACC = 0

ZF, CF

1/1

ACC, Râ(R) - 1; PC â (PC) + 2 if ACC ! = 0

ZF, CF

1/1

PC â (PC) + 2 if R.0 = "1"

1/1

PC â (PC) + 2 if R.1 = "1"

1/1

PC â (PC) + 2 if R.2 = "1"

1/1

PC â (PC) + 2 if R.3 = "1"

1/1

STACK â (PC)+1, TAB0, TAB1, TAB2, TAB3,

1/1

DBKRL,DBKRH,WRP,ROMPR,PAGE,ACC,CF

PC14 ~ PC0 â (ROMPR)Ã800H+L10 ~ L0

Pop PC

1/1

Pop PC; Pop other registers by I setting

1/1

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

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