sh6622a SinoWealth Micro-Electronics Corp. Ltd, sh6622a Datasheet - Page 12

• Manufacturer Part Number: sh6622a
• Description: Mask 4-bit Microcontroller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

Instruction Set
All instructions are one cycle and one word instructions. The characteristic is memory-oriented operation.
Arithmetic and Logical Instruction
Accumulator Type
Immediate Type
* In the assembler ASM66 V1.0, EORIM mnemonic is EORI. However, EORI has the operation identical with EORIM. Same for
Decimal Adjustment
the ORIM with respect to ORI, and ANDIM with respect to ANDI.
ADC
ADCM
ADD
ADDM
SBC
SBCM
SUB
SUBM
EOR
EORM
OR
ORM
AND
ANDM
SHR
ADI
ADIM
SBI
SBIM
EORIM
ORIM
ANDIM
DAA X
DAS X
Mnemonic
Mnemonic
Mnemonic
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X (, B)
X, I
X, I
X, I
X, I
X, I
X, I
X, I
11001 0110 xxx xxxx
11001 1010 xxx xxxx
11110 0000 000 0000
00000 0bbb xxx xxxx
00000 1bbb xxx xxxx
00001 0bbb xxx xxxx
00001 1bbb xxx xxxx
00010 0bbb xxx xxxx
00010 1bbb xxx xxxx
00011 0bbb xxx xxxx
00011 1bbb xxx xxxx
00100 0bbb xxx xxxx
00100 1bbb xxx xxxx
00101 0bbb xxx xxxx
00101 1bbb xxx xxxx
00110 0bbb xxx xxxx
00110 1bbb xxx xxxx
01000 iiii xxx xxxx
01001 iiii xxx xxxx
01010 iiii xxx xxxx
01011 iiii xxx xxxx
01100 iiii xxx xxxx
01101 iiii xxx xxxx
01110 iiii xxx xxxx
Instruction Code
Instruction Code
Instruction Code
AC
AC, Mx ← Mx + AC + CY
AC
AC, Mx ← Mx + AC
AC
AC, Mx ← Mx + -AC + CY
AC
AC, Mx ← Mx + -AC + 1
AC
AC, Mx ← Mx ⊕ AC
AC
AC, Mx ← Mx | AC
AC
AC, Mx ← Mx & AC
0 → AC [3]; AC [0] →CY;
AC shift right one bit
AC
AC, Mx ← Mx + I
AC
AC, Mx ← Mx + -I + 1
AC, Mx ← Mx ⊕ I
AC, Mx ← Mx | I
AC, Mx ← Mx & I
AC; Mx ← Decimal adjustment for add.
AC; Mx ← Decimal adjustment for sub.
12
← Mx + AC + CY
← Mx + AC
← Mx + -AC + CY
← Mx + -AC + 1
← Mx ⊕ AC
← Mx | AC
← Mx & AC
← Mx + I
← Mx + -I +1
Function
Function
Function
Flag Change
Flag Change
Flag Change
SH6622A
CY
CY
CY
CY
CY
CY
CY
CY
CY
CY
CY
CY
CY
CY
CY