Wednesday, February 15, 2017

Monday, November 21, 2016

Extending BASIC

Good article from Your Spectrum magazine (1984) regarding methods of extending ZX Spectrum BASIC.

Emulator for ZX Spectrum development


ZXSpin v0.7q - good emulator with good debugger and assembler.

Thursday, November 17, 2016

Wednesday, November 16, 2016

Interface 1bis file not found error

Purchased Interface 1 bis for the ZX Spectrum. 
There are plenty information about it and installing and preparing SD card on manufacturers site https://sites.google.com/site/interface1bis/ 
But I have encountered a problem - could not start it and was allways getting "file not found" error.
Did all steps described in troubleshooting video https://www.youtube.com/watch?v=QYHhWQyVWAU 
Loaded OpSys from PC using LOAD command, program loads OK. But when I do NEW and then RUN I get "file not found" error. 
Solution I found was that I had to repeat all prepare SD card steps, but additionally had to add comparability with Windows 8 (and run as administrator off course) option (I was running Windows 10) to LDCSetup.exe and later to the 'Prepare new card' utility.

So, In short - add Windows 8 compatibility to Interface 1 bis utilities.

Some links for ZX Assemlby programming

Making games in ZX Spectrum assembly book ( russian lang.):
http://zxpress.ru/book.php?id=2

How to write ZX Spectrum games tutorial in English:
https://chuntey.wordpress.com/2012/12/18/how-to-write-zx-spectrum-games-chapter-1/

Spectrum ROM routines:
http://skoolkit.ca/disassemblies/rom/asm/2852.html

Z80 instruction set:
http://clrhome.org/table/

Group in FB dedicated for Z80 assembly programming:
https://www.facebook.com/groups/z80asm/

WOS forum link:
http://www.worldofspectrum.org/forums/categories/assembler

Another forum (ru):
http://zx-pk.ru/forums/14-programmirovanie.html

Some more books (ru):
http://vtrdos.ru/