COP8SBR9 NSC [National Semiconductor], COP8SBR9 Datasheet - Page 68

• Manufacturer Part Number: COP8SBR9
• Description: 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
• Manufacturer: NSC [National Semiconductor]

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19.0 Instruction Set
INC
DEC
LAID
DCOR
RRC
RLC
SWAP
SC
RC
IFC
IFNC
POP
PUSH
VIS
JMPL
JMP
JP
JSRL
JSR
JSRB
JID
RET
RETSK
RETI
INTR
NOP
A
A
A
A
A
A
A
A
Addr.
Addr.
Disp.
Addr.
Addr.
Addr
INCrement A
DECrement A
Load A InDirect from ROM
Decimal CORrect A
Rotate A Right thru C
Rotate A Left thru C
SWAP nibbles of A
Set C
Reset C
IF C
IF Not C
POP the stack into A
PUSH A onto the stack
Vector to Interrupt Service Routine
Jump absolute Long
Jump absolute
Jump relative short
Jump SubRoutine Long
Jump SubRoutine
Jump SubRoutine Boot ROM
Jump InDirect
RETurn from subroutine
RETurn and SKip
RETurn from Interrupt
Generate an Interrupt
No OPeration
(Continued)
68
A ← A + 1
A ← A − 1
A ← ROM (PU,A)
A ← BCD correction of A (follows ADC, SUBC)
C → A7 → … → A0 → C
C ← A7 ← … ← A0 ← C, HC ← A0
A7…A4
C ← 1, HC ← 1
C ← 0, HC ← 0
IF C is true, do next instruction
If C is not true, do next instruction
SP ← SP + 1, A ← [SP]
[SP] ← A, SP ← SP − 1
PU ← [VU], PL ← [VL]
PC ← ii (ii = 15 bits, 0 to 32k)
PC9…0 ← i (i = 12 bits)
PC ← PC + r (r is −31 to +32, except 1)
[SP] ← PL, [SP−1] ← PU,SP−2, PC ← ii
[SP] ← PL, [SP−1] ← PU,SP−2, PC9…0 ← i
[SP] ← PL, [SP−1] ← PU,SP−2,
PL ← Addr,PU ← 00, switch to flash
PL ← ROM (PU,A)
SP + 2, PL ← [SP], PU ← [SP−1]
SP + 2, PL ← [SP],PU ← [SP−1],
skip next instruction
SP + 2, PL ← [SP],PU ← [SP−1],GIE ← 1
[SP] ← PL, [SP−1] ← PU, SP−2, PC ← 0FF
PC ← PC + 1
↔
A3…A0