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Programming Instructions Appendix B

310

IR SR HR TR AR LR TC DM #

00000 to 23515 23600 to 25507 HR 0000 to 9915 TR 0 to 7 AR 0000 to 2715 LR 0000 to 6315 TC 000 to 511 Read/Wr: DM 0000 to DM 0999

Rd only: DM 1000 to DM 1999

0000 to 9999

or 0000 to FFFF

These footnote tables show the actual ranges of all data areas. Bit numbers are provided (except for DM and TC areas); remove the rightmost two digits for word numbers.

Data Areas

Name

Mnemonic

Operand Data AreasFunctionSymbol

ASCII CONVERT

(@)ASC(86)

ASC(86)

Converts hexadecimal digits from the

source word (S) into 8-bit ASCII values,

starting at leftmost or rightmost half of the

starting destination word (D). The right-

most digit of Di designates the first source

digit. The next digit to the left gives the

number of digits to be converted. The next

digit specifies the whether the data is to be

transferred to the rightmost (0) or leftmost

(1) half of the first destination word. The

leftmost digit specifies parity:

0: none,

1: even, or

2: odd.

8-bit

data

0 to F

15 08 07 00

Di:

INTERRUPT CONTROL

(@)INT(89)

INT(89)

Controls programmed (scheduled) inter-

rupts and interrupts from Interrupt Input

Units. Each PC can have up to 4 IIUs. N de-

fines the source of the interrupt: 000 to 003

designate the no. of the IIU; 004 desig-

nates a scheduled interrupt. In IIUs, bits 00

to 07 identify the interrupting subroutine,

higher bits are not used. Bit 00 of Unit 0 cor-

responds to interrupt subroutine 00,

through to bit 07 of Unit 3 which corre-

sponds to subroutine 31. CC is the control

code, the meaning of which depends on

the value of N, as follows:

CC N = 000 to 003 N = 004

000

001

002

Masks and unmasks in-

terrupt bits for the desig-

nated Unit (N) according

to the data in D. Bits cor-

responding to ON bits in

D are masked, those cor-

responding to OFF bits

are unmasked. Masked

bits are recorded and will

be executed when they

are unmasked (unless

previously cleared).

Clears the masked inter-

rupt bits of the designated

Unit (N) according to the

corresponding ON bits in

D. The subroutines corre-

sponding to bits cleared

in this manner will not be

executed when the bit is

unmasked.

Copies the mask status of

the designated IIU to D.

The interrupt time

interval is set ac-

cording to the data

in D (00.01 to

99.99 s) The deci-

mal point is not

entered. The in-

terrupt is can-

celled if D is

00.00.

The time to the first

interrupt is set ac-

cording to the data

in D (00.01 to

99.99 s) The deci-

mal point is not en-

tered. The inter-

rupt is cancelled if

D is 00.00.

Copies the time in-

terval data to D.

CC:

000 to

002

000 to

004

1 2 ... 310 311 312 313 314 315 316 317 318 319 320 ... 367 368

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