Sinclair QL User Manual

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INSTR is an operator which will determine if a given substring is contained within a
specified string.
If the string is tound then the substring's position is returned. If the string
is not found then INSTR returns zero.
Zero can be interpreted as false, i.e. the substring was not contained in the given string.
A non zero value, the substrings position, can be intepreted as true, i.e. the substring
was contained in the specified string.
syntax: string_expression INSTR string expression
example: I. PRINT lI a" INSTR "cat
ll
il. PRINT "CAT" INSTR "concatenate"
iii. PRINT "x" INSTR "eggs"
INT will return the Integer part of the specified floating point expression.
syntax: INT
(numenc_expression)
example: i. PRINT INT(X)
ii. PRINT INT(3.141592654/2)
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INSTR
operator
INT
maths functions
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Sinclair QL Specifications

General

Processor	Motorola 68008
Clock Speed	7.5 MHz
RAM	128 KB (expandable to 640 KB)
ROM	48 KB
Operating System	Sinclair QDOS
Release Year	1984
Storage	Microdrive tape loop
Graphics	256x256 pixels, 8 colors
Ports	RS-232, ROM cartridge
Sound	Beeper (internal speaker)