Remote-processing BASIC 52 Manuel d'utilisateur télécharger pdf (Page 106)

RPBASIC-52 PROGRAMMING GUIDE

2-87

POP

Syntax: POP variable [ ,variable,...]

Function: Takes a valu e PU SHed to a sta ck and assigns it to the variable.

Mode: Command, run

Use: POP X,Y,Z

Cards: All

DESCRIPTION

Multiple variables can be POPped off the stack by separating the variables with commas. The first value

POPped is the last value PUSHed.

POP and PUSH are useful for transferring data values between subroutines. They allow you to write a

subroutine with arbitrary variable names. Data transfers to and from the subroutine can be performed by

PUSH and POP, rather than by equating variable nam es.

PUSH, LD@, ST@

ERROR

A-STACK No variable on the stack when the POP instruction executed.

EXAMPLE

100 FOR N=0 TO 7

110 PUSH AIN(N)

120 NEXT

130 FOR N=0 TO 7

140 POP A

150 PRINT A*.00214

160 NEXT

>run

.536

3.445

2.334

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 162 163

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Remote-processing BASIC 52 Manuel d'utilisateur Page 106