Z380 Datasheet, PDF (72/115 Pages) Zilog, Inc. – MICROPROCESSOR

ZILOG
CALL AND RETURN GROUP
MICROPROCESSOR
Mnemonic
Symbolic
Operation
Flags
P/
Opcode
# of Execute
S Z x H x V N C 76 543 210 HEX Bytes Time Notes
CALL nn
CALL cc,nn
CALR e
CALR cc,e
CALR ee
CALR cc,ee
CALR eee
(SP-1) ← PCh
(SP-2) ← PCl
SP ← SP-2
PC ← nn
If condition cc
is false continue
otherwise same as CALL nn
(SP-1) ← PCh
(SP-2) ← PCl
SP ← SP-2
PC ← PC + e
If condition cc
is false continue
otherwise same as CALR e
(SP-1) ← PCh
(SP-2) ← PCl
SP ← SP-2
PC ← PC + ee
If condition cc
is false continue
otherwise same as
CALR ee
(SP-1) ← PCh
(SP-2) ← PCl
SP ← SP-2
PC ← PC + eee
CALR cc,eee
If condition cc
is false continue
otherwise same as
CALR eee
RET
RET cc
RETI
PCL ← (SP)
PCH ← (SP + 1)
SP ← SP+2
If condition cc
is false continue
otherwise same as RET
Return from Interrupt
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••x • x • • •
••x • x • • •
••x • x • • •
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11 001 101 CD
← n →
← n →
11 cc 100
← n →
← n →
11 101 101 ED
11 001 101 CD
← e-3 →
11 101 101 ED
11 cc 100
← e-3 →
11 011 101 DD
11 001 101 CD
← (ee-4)L →
← (ee-4)H →
11 011 101 DD
11 cc 100
← (ee-4)L →
← (ee-4)H →
11 111 101 FD
11 001 101 CD
← (eee-5)L →
← (eee-5)M →
← (eee-5)H →
11 111 101 FD
11 cc 100
← (eee-5)L →
← (eee-5)M →
← (eee-5)H →
11 001 001 C9
11 cc 000
11 101 101 ED
01 001 101 4D
3 4+w X3, I
3 2/4+w X3, I
3 4+w N,X3,(11)
3 2/4+w N,X3,(11)
4 4+w N,X3,(8)
4 2/4+w N,X3,(8)
5 4+w N,X3,(9)
5 2/4+w N,X3,(9)
1 2+r N, X4
1 2/2+r N, X4
2 2+r N, X4
PS010001-0301