CDP1805 Intersil Corporation, CDP1805 Datasheet - Page 20

• Manufacturer Part Number: CDP1805
• Description: CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
• Manufacturer: Intersil Corporation

BRANCH INSTRUCTIONS - LONG BRANCH
LONG BRANCH
NO LONG BRANCH (See LSKP)
LONG BRANCH IF D = 0
LONG BRANCH IF D NOT 0
LONG BRANCH IF DF = 1
LONG BRANCH IF DF = 0
LONG BRANCH IF Q = 1
LONG BRANCH IF Q = 0
SKIP INSTRUCTIONS
SHORT SKIP (See NBR)
LONG SKIP (See NLBR)
LONG SKIP IF D = 0
LONG SKIP IF D NOT 0
LONG SKIP IF DF = 1
LONG SKIP IF DF = 0
LONG SKIP IF Q = 1
LONG SKIP IF Q = 0
LONG SKIP IF MIE = 1
CONTROL INSTRUCTIONS
IDLE
NO OPERATION
SET P
SET X
INSTRUCTION
TABLE 1. INSTRUCTION SUMMARY (SEE NOTES) (Continued)
MACHINE
CYCLES
NO. OF
3
3
3
3
3
3
3
3
2
3
3
3
3
3
3
3
3
2
3
2
2
CDP1805AC, CDP1806AC
MNEMONIC
NLBR
LBNQ
LSNQ
LBNZ
LBDF
LBNF
LSKP
LSNZ
LSDF
LSNF
LSIE
LBQ
LSQ
NOP
LBR
LBZ
SKP
SEP
SEX
LSZ
IDL
20
OP CODE
(Note 11)
(Note 11)
(Note 11)
(Note 14)
C0
C2
CA
C3
CB
CE
CF
CD
CC
DN
EN
C8
C1
C9
C8
C6
C7
C5
C4
38
00
M(R(P))
R(P) + 2
IF D = 0, M(R(P))
M(R(P) + 1)
ELSE R(P) + 2
IF D NOT 0, M(R(P))
M(R(P) + 1)
ELSE R(P) + 2
IF DF = 1, M(R(P))
M(R(P) + 1)
ELSE R(P) + 2
IF DF = 0, M(R(P))
M(R(P) + 1)
ELSE R(P) + 2
IF Q = 1, M(R(P))
M(R(P) + 1)
ELSE R(P) + 2
IF Q = 0, M(R(P))
M(R(P) + 1)
ELSE R(P) + 2
R(P) + 1
R(P) + 2
IF D = 0, R(P) + 2
ELSE CONTINUE
IF D NOT 0, R(P) + 2
ELSE CONTINUE
IF DF = 1, R(P) + 2
ELSE CONTINUE
IF DF = 0, R(P) + 2
ELSE CONTINUE
IF Q = 1, R(P) + 2
ELSE CONTINUE
IF Q = 0, R(P) + 2
ELSE CONTINUE
IF MIE = 1, R(P) + 2
ELSE CONTINUE
STOP ON TPB; WAIT FOR DMA OR INTERRUPT;
BUS FLOATS
CONTINUE
N
N
P
X
R(P).1, M(R(P) + 1)
R(P)
R(P)
R(P)
R(P).0
R(P).0
R(P).0
R(P).0
R(P).0
R(P).0
R(P)
R(P)
R(P)
R(P)
R(P)
R(P)
OPERATION
R(P).1
R(P).1
R(P).1
R(P)
R(P)
R(P)
R(P).1
R(P).1
R(P)
R(P)
R(P)
R(P).1
R(P)
R(P).0