Sharp PC-1500 - Page 117

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5-1. BASIC command related PC-1500 machine language
112
In this scccion we wi ll discuss the BAS IC comm an d related PC- 1500 mach in e l anguage .
5-1-1. NEW
Format (PRO mode)
NEW r expression T
CD NEW expression (= O)
Clears pr ogram and a ll da ta ar eas and secures the BAS IC pr ogram area fo ll ow ing to
the reser ve pr ogr am ar ea.
Top of the BASIC progra1m
Operat ion of the PC -1 500 on ly 40C5H
Operat ion in co n ju ct ion with th e CE- 1 55
38C5H
See (Syste m memory )
CD NEW exp ression (# 0)
Effecti ve when th ere is no user ROM ar ea .
Cl ears B AS IC pr ogram and all data areas and sets the B AS IC program ar ea f rom the
address re
pr esented in the expressi on . which is valid wi thin a n addrc.ss ra nge of RA M
ar ea except the reserve ar ea.
(D NEW
Clears BAS IC progr am and al l d at a are as wi t ho ut a ff ec ting the BA SI C p rogram area.
When executed in th e reser ve mo de. it clears t he reser ve area.
5-1-2. STATUS
Format
Status - expression -
CD STATUS 0
Similar to M EM. the sum of unoccupied memor y siLc an d data m emo r ys iLc is given in
t erms of bytes.
(i) STATUS 1
Si7.e of the me mo ry used for the BAS IC p rogram is given in t er ms of bytes.
(D STATUS 2
The l as t BASIC program add ress plus one address (next to FF H) is gi ven.
© STATUS 3
The smallest ad dr ess where d ata st<J red is gi ve n.
G) STATUS 4
When BASIC pr og r am is in execution, the line number executed imme diately befo re.
When
pr ogram execution is <H halt, the cur rent line number.
ln ot herwise co nditi on . "0". Sarne for STAT US 5 thru 255.
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