ZX80 sub string

Anything Sinclair ZX Basic related; history, development, tips - differences between BASIC on the ZX80 and ZX81
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Shaun_B
Posts: 451
Joined: Wed Apr 22, 2009 10:22 am

ZX80 sub string

Post by Shaun_B » Tue Feb 28, 2017 11:40 am

Hi guys,

I hear about a TL$ function on the ZX80 for string manipulation. Could anyone show me how this works please? Or do I need an upgraded ROM image to access it? (Currently emulating 4K ROM in EightyOne)

Many thanks,

Shaun.

Shaun_B
Posts: 451
Joined: Wed Apr 22, 2009 10:22 am

Re: ZX80 sub string

Post by Shaun_B » Tue Feb 28, 2017 11:55 am

Actually I worked it out:

Code: Select all

1 LET A$="HELLO MAGAZINE"
2 PRINT TL$(A$)
I just need an easy way to shuffle the string now.

Regards,

Shaun.

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siggi
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Location: Dauernheim, Germany
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Re: ZX80 sub string

Post by siggi » Tue Feb 28, 2017 1:19 pm

My ZX81 web-server: online since 2007
http://zx81-siggi.endoftheinternet.org/index.html

Shaun_B
Posts: 451
Joined: Wed Apr 22, 2009 10:22 am

Re: ZX80 sub string

Post by Shaun_B » Tue Feb 28, 2017 4:45 pm

Hi,

Thanks for the really useful link.

I made a sort of scrolly text example in ZX80 BASIC - press enter on each static screen update to see the scrolly text one character at a time.

Enjoy!

Regards,

Shaun.
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ZX80 Scrolly Text in BASIC
ZX80 Scrolly Text in BASIC
zx80-basic-scroll.png (9.66 KiB) Viewed 1161 times

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