mirror of https://github.com/RevCurtisP/C02.git
67 lines
1.8 KiB
Plaintext
67 lines
1.8 KiB
Plaintext
/* Atari VCS 2 Line Kernel Test` */
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#pragma origin $F800 //4k Cartridge
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#include <vcshead.h02> //TIA and RIOT Registers
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#include <vcsstub.h02> //VCS Program Stub
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#include <vcslib.h02> //VCS Library Routines
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#include <score2.h02> //Two Player Score Kernel
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#include <timerbar.h02> //Two Player Score Kernel
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#include <k2line.h02> //Two Line Game Kernel
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//TIA Register Bit Masks
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#define CLEAR = 0
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#define SET = $0B
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//Console Switch Bit Masks
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#define P1DIFF = $80 //Player 1 Difficulty
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#define P0DIFF = $40 //Player 0 Difficulty
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//Constants Required by timerbar.h02
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#define TMRCLR = $64
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//Constants Required by k2line.h02
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#define P0HGHT = 10 //Player 0 Height
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#define P1HGHT = 10 //Player 1 Height
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//Color Table
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char colors = {$86, $C6, $46, $00, $0E, $06, $0A, $00};
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//Human Shaped Player Graphics
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char human = {%00011100, %00011000, %00011000, %00011000, %01011010,
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%01011010, %00111100, %00000000, %00011000, %00011000};
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zeropage char frame; //Frame Counter
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/* Setup Code */
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void setup() {
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setclr(&colors); //Set Color Table
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initmr(); //Initialize Timer Bar
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}
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/* Vertical Blank Code */
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void vrtblk() {
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scrprp(); //Prepare Score For Display
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posobj(0,0); //Set P0 X-Position
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p0prep(175, &human); //Set P0 Y-Position & Graphics Pointer
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posobj(8,1); //Set P1 X-Position
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p1prep(175, &human); //Set P1 Y-Position & Graphics Pointer
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}
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/* Execute Kernel Code */
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void kernel() {
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scrdsp(); //Display Scores
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dsptmr(); //Display Timer Bar
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dsplns(); //Display Playfield and Objects
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}
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/* Execute Overscan Code */
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void ovrscn() {
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frame++;
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if (!frame & 7) { //Decrement Timer Every X Frames
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if (!dectmr()) initmr(); //Reset Timer if It Runs Out
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}
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}
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#include <digits.h02> //Digit Graphics
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#include <vcsfoot.h02> //Finalization Code
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