4502 datasheet(63/116 Pages) RENESAS

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4502 Group

Rev.3.01

2005.02.02

page 63 of 112

REJ03B0105-0301

BM a (Branch and Mark to address a in page 2)

010a6

1aa

–

Grouping:

Subroutine call operation

Description: Call the subroutine in page 2 : Calls the

subroutine at address a in page 2.

Note:

Subroutine extending from page 2 to an-

other page can also be called with the BM

instruction when it starts on page 2.

Be careful not to over the stack because the

maximum level of subroutine nesting is 8.

Operation:

(SP)

← (SP) + 1

(SK(SP))

← (PC)

(PCH)

← 2

(PCL)

← a6–a0

BML p, a (Branch and Mark Long to address a in page p)

00110p4

–

Grouping:

Subroutine call operation

Description: Call the subroutine : Calls the subroutine at

address a in page p.

Note:

p is 0 to 15 for M34502M2, and p is 0 to 31

for M34502M4/E4.

Be careful not to over the stack because the

maximum level of subroutine nesting is 8.

Operation:

(SP)

← (SP) + 1

(SK(SP))

← (PC)

(PCH)

← p

(PCL)

← a6–a0

BMLA p (Branch and Mark Long to address (D) + (A) in page p)

0000110000

030

–

Grouping:

Subroutine call operation

Description: Call the subroutine : Calls the subroutine at

address (DR2 DR1 DR0 A3 A2 A1 A0)2 speci-

fied by registers D and A in page p.

Note:

p is 0 to 15 for M34502M2, and p is 0 to 31

for M34502M4/E4.

Be careful not to over the stack because the

maximum level of subroutine nesting is 8.

CLD (CLear port D)

0000010001

011

–

Grouping:

Input/Output operation

Description: Sets (1) to port D.

Operation:

(D)

← 1

100a6

2aa

Operation:

(SP)

← (SP) + 1

(SK(SP))

← (PC)

(PCH)

← p

(PCL)

← (DR2–DR0, A3–A0)

100p4

00p3

2pp

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

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