Zx Breakout Type in Error

[Crayon21]

so,after hours of typing, I got it to run. the ball sails to the top right and bounces, then I get an integer out of range error in 4020.

the thing is, I checked and double checked, there is nothing in the line about range. maybe I messed up somewhere. the Code is listed in pages 27 through 30 in the ZX Spectrum Games Code Club book by Gary Plowman. Any help would be appreciated. I don't want to have to redo the whole thing in z80 assembler. I would appreciate a prompt response

[1024MAK]

Note that I have not got the program listing in front of me to refer to, so this is general advice.

If a BASIC program tries to position the curser position / print position or the graphics plot position outside the screen area, you may get this error.

After the error, BASIC lets you use direct commands to examine the contents of any of the variables. So use PRINT z where z is any variable you suspect may be causing problems.

Possible reasons for the cause of errors in programs entered from printed listings include (but are not limited to):

• A line of code that was missed when the program was typed in,
• A typo in the code,
• The wrong character used, so for example a 1 in place of an I, or an i, or a missing symbol, e.g. a - (minus) sign left out,
• A misprint in the published listing,
• Part of the program listing missed out from the published listing.

Mark

[Crayon21]

probably a typo, because I typed everything exactly as written

[gammaray]

Hi. Was there a code listing, picture or link to the document this program was shown?

C

[Crayon21]

Hi. Was there a code listing, picture or link to the document this program was shown?

https://www.amazon.com/ZX-Spectrum-Game ... B018R4DS22

C

[Crayon21]

any luck?

[gammaray]

Haven't received book yet from Amazon.

[Crayon21]

Haven't received book yet from Amazon.

any luck yet?

[XavSnap]

What is a "book" ?


We haven't this book, this program and we can't debug your mind...

[gammaray]

Order stalled and I reactivated ...