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improving Speed and Realism
Peculiarities of PRiNV
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Air Attack airplane Appendix AS:IF ASCII code assembly language bank BASIC programming BASIC workspace big letter bit values blank bullet chapter character set clear the screen code number color memory color of sprite Commodore 64 Commodore BASIC constant data for sprite data pointers DATA statements DATA"POKE defined disk drive disk or tape display alphabet distance of sprite edit Figure Function key GOSUB GOTO gram graphics characters grid headline letter illustr increments instructions keyboard Line 50 line number load look Main color memory address move the cursor multicolor sprites old line PEEK picture pixel pointer POKE statements press RETURN PRINT:PRINT program listing reset Rodnay Zaks ROM image routine running screen background color simple Sprite Aid sprite data string subroutine SYBEX tell the computer There's top-left video address video chip video memory map WORDSTAR