UPD750004A datasheet(48/84 Pages) NEC

48 / 84 page

µPD750004, 750006, 750008, 750004(A), 750006(A), 750008(A)

Group

Subrou-

tine stack

control

Mne-

monic

CALLNote

CALLFNote

Operand

!addr

!faddr

Bytes

Machin-

ing

cycle

Skip

condition

Address-

ing area

Operation

•

µPD750004

(SP - 3)

← MBE, RBE, 0, 0

(SP - 4) (SP - 1) (SP - 2)

← PC11-0

PC11-0

← addr, SP ← SP - 4

•

µPD750006, 750008

(SP - 3)

← MBE, RBE, 0, PC12

(SP - 4) (SP - 1) (SP - 2)

← PC11-0

PC12-0

← addr, SP ← SP - 4

•

µPD750004

(SP - 2)

← ×, ×, MBE, RBE

(SP - 6) (SP - 3) (SP - 4)

← PC11-0

(SP - 5)

← 0, 0, 0, 0

PC11-0

← addr, SP ← SP - 6

•

µPD750006, 750008

(SP - 2)

← ×, ×, MBE, RBE

(SP - 6) (SP - 3) (SP - 4)

← PC11-0

(SP - 5)

← 0, 0, 0, PC12

PC12-0

← addr, SP ← SP - 6

•

µPD750004

(SP - 3)

← MBE, RBE, 0, 0

(SP - 4) (SP - 1) (SP - 2)

← PC11-0

PC11-0

← 0 + faddr, SP ← SP - 4

•

µPD750006, 750008

(SP - 3)

← MBE, RBE, 0, PC12

(SP - 4) (SP - 1) (SP - 2)

← PC11-0

PC12-0

← 00 + faddr, SP ← SP - 4

•

µPD750004

(SP - 2)

← ×, ×, MBE, RBE

(SP - 6) (SP - 3) (SP - 4)

← PC11-0

(SP - 5)

← 0, 0, 0, 0

PC11-0

← 0 + faddr, SP ← SP - 6

•

µPD750006, 750008

(SP - 2)

← ×, ×, MBE, RBE

(SP - 6) (SP - 3) (SP - 4)

← PC11-0

(SP - 5)

← 0, 0, 0, PC12

PC12-0

← 00 + faddr, SP ← SP - 6

Note The shaded portion is supported in Mk

ΙΙ mode only. The other portions are supported in Mk Ι mode only.

UPD750004A Datasheet(PDF) 48 Page - NEC

UPD750004A Datasheet(HTML) 48 Page - NEC

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