IBM 5100 Basic Reference Manual

76
Example
The following examples show the execution of GOSUB and RETURN statements:
50 GOSUB 100
-60-
100-
140 RETURN
80 GOSUB 150
90------,
150 -
190 GOSUB 250
200 -
... ----1--,
240 RETURN-
250-
300 RETURN-- .....
The following example shows a GOSUB to a keys function:
100 GOSUB 9994- _______ LOADO,KEY4
-9994 REM
9994 PRINT 'IN MAIN PROGRAM'
9995 RETURN
0010 PRINT
'IN KEYGROUP 9994'
0020 RETURN
In this example, statement 100
causes the program to branch to the REM function
defined
for key 4. If key 4 is not defined or is defined as something other than
REM, the program
seeks statement 9994 within the main program.
\",-

IBM 5100 Specifications

General

Release Year	1975
RAM	16 KB - 64 KB
Storage	204 KB tape drive
Display	5-inch CRT
Operating System	APL/BASIC
Processor	IBM PALM (1.9 MHz)