COP8-PGMA-DS44P National Semiconductor, COP8-PGMA-DS44P Datasheet - Page 18

• Manufacturer Part Number: COP8-PGMA-DS44P
• Description: PGMR ADAPTER/COP8 DIP,SOIC,PLCC
• Manufacturer: National Semiconductor

Specifications of COP8-PGMA-DS44P

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *COP8-PGMA-DS44P

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ADD
ADC
SUBC
AND
OR
XOR
IFEQ
IFGT
IFBNE
DRSZ
SBIT
RBIT
IFBIT
X
LD A
LD mem
LD Reg
X
X
LD A
LD A
LD M
CLRA
INCA
DECA
LAID
DCORA
RRCA
Memory Map
Reading unused memory locations below 7FH will return all
ones. Reading other unused memory locations will return
undefined data.
Instruction Set
REGISTER AND SYMBOL DEFINITIONS
Registers
A
B
X
SP
PC
Instruction Set
Address
FE
8-bit Accumulator register
8-bit Address register
8-bit Address register
8-bit Stack pointer register
15-bit Program counter register
B Register
add
add with carry
subtract with carry
Logical AND
Logical OR
Logical Exclusive-OR
IF equal
IF greater than
IF B not equal
Decrement Reg. ,skip if zero
Set bit
Reset bit
If bit
Exchange A with memory
Load A with memory
Load Direct memory Immed.
Load Register memory Immed.
Exchange A with memory [B]
Exchange A with memory [X]
Load A with memory [B]
Load A with memory [X]
Load Memory Immediate
Clear A
Increment A
Decrement A
Load A indirect from ROM
DECIMAL CORRECT A
ROTATE A RIGHT THRU C
(Continued)
Contents
18
PU
PL
C
HC
GIE 1-bit of PSW register for global interrupt enable
Symbols
[B]
[X]
Mem
MemI Direct address memory or [B] or Immediate data
Imm
Reg
Bit
A
A
HC
A
HC
A
A
A
Compare A and MemI, Do next if A = MemI
Compare A and MemI, Do next if A
Do next if lower 4 bits of B
Reg
1 to bit,
Mem (bit= 0 to 7 immediate)
0 to bit,
Mem
If bit,
Mem is true, do next instr.
A
A
Mem
Reg
A
A
A
A
[B]
A
A
A
A
A
C
upper 7 bits of PC
lower 8 bits of PC
1-bit of PSW register for carry
Half Carry
A + MemI
A + MemI + C, C
A + MemI +C, C
A and MemI
A or MemI
A xor MemI
MemI
[B]
[X]
0
A + 1
A − 1
ROM(PU,A)
BCD correction (follows ADC, SUBC)
A7
Mem
[B]
[X]
Imm (B
Memory indirectly addressed by B register
Memory indirectly addressed by X register
Direct address memory or [B]
8-bit Immediate data
Register memory: addresses F0 to FF (Includes B, X
and SP)
Bit number (0 to 7)
Loaded with
Exchanged with
Half Carry
Half Carry
Reg − 1, skip if Reg goes to 0
Imm
Imm
…
(B
(X
(B
(X
B
A0
B
X
B
X
±
±
±
±
±
1)
1)
1)
1)
1)
C
Carry
Carry
Imm
>
MemI