Reference Manual

ManualsBrandsDelta Tau ManualsControllersDelta Tau PMAC VME

271

272

273

274

275

276

277

278

279

280

PMAC 2 Software Reference

PMAC On-Line Command Specification 257

Example

M165->L:$081F

M265->L$0820

M265->L2080

See Also

M-Variables (Computational Features)

On-line commands M{constant}, M{constant}->,

..........M{constant}->D:{address}, M{constant}={expression}

Program command M{constant}={expression}

M{constant}->TWB:{multiplex address}

Function

Binary Thumbwheel-Multiplexer Definition

Scope

Global

Syntax

M{constant}[..{constant}]->TWB[:]{multiplex

address},{offset},{size},{format}

where:

• {constant} is an integer from 0 to 1023 representing the number of the M-variable;

• the optional second{constant} must be at least as great as the first {constant} – it

represents the number of the end of the range;

• {multiplex address} is an integer constant in the range 0 to 255, representing the

byte address in the multiplexing scheme on the thumbwheel port of the least significant

bit to be used in the M-variable(s);

• {offset} is an integer constant from 0 to 7, representing which bit of this byte is the

least significant bit to be used in the M-variable;

• {size} is an integer constant from 1 to 32, representing the number of consecutive bits

to be used in the M-variable(s);

• {format} (optional) is either U for unsigned, or S for signed (two’s complement). If

no format is specified, U (unsigned) is assumed

Note:

No spaces are permitted between the M-variable name and the

“arrow” double character in this command.

Remarks

This command causes PMAC to define the specified M-variable or range of M-variables to a

consecutive of input bits multiplexed on the thumbwheel port with Accessory 18 or

compatible hardware.

Example

M0->TWB:0,0,1

M1->TWB:0,1,1

M10->TWB:3,4,4,U

M745->TWB:4,0,16,S

M872->TWB:0,4,1