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c64.h
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c64.h
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/* C64 Specific Code */
#include<peekpoke.h>
/* Joystick Macros */
#define C64_JOYSTICK_ADDRESS_1 56321U // Control Port 1
#define C64_JOYSTICK_ADDRESS_2 56320U // Control Port 2
#define C64_JOYSTICK_NONE 0x7F // 0111 1111
#define C64_JOYSTICK_UP 0x01 // 254 1111 1110
#define C64_JOYSTICK_DOWN 0x02 // 253 1111 1101
#define C64_JOYSTICK_LEFT 0x04 // 251 1111 1011
#define C64_JOYSTICK_RIGHT 0x08 // 247 1111 0111
#define C64_JOYSTICK_BUTTON 0x10 // 239 1110 1111
#define GET_JOY1 PEEK(C64_JOYSTICK_ADDRESS_1);
#define GET_JOY2 PEEK(C64_JOYSTICK_ADDRESS_2);
/* Keyboard Macros */
#define GET_PKEY_VIEW PEEK(203)
#define PKEY_A 0x0A // 'A'
#define PKEY_D 0x12 // 'D'
#define PKEY_S 0x0D // 'S'
#define PKEY_W 0x09 // 'W'
#define PKEY_Q 0x3E // 'Q'
#define PKEY_SPC 0x3C // 'Spacebar'
#define PKEY_NOKEY 0x40 // No key pressed
#define CLRKEY \
__asm__("lda #$00"); \
__asm__("sta $c6");
/* Audio Macros */
#define AUDIO_C64_BASE_ADDR 0xD418
#define AUDIO_TURN_ON \
POKE(56587U,16);
#define AUDIO_TURN_OFF \
POKE(56587U,0);
#define AUDIO_SET_OCTAVE(octave) \
POKE(56586U,octave);
#define AUDIO_SET_FREQUENCY(freq) \
POKE(56584U,freq);
/* Color Macros */
#define C64_COLOR_BLACK 0x00U
#define C64_COLOR_WHITE 0x01U
#define C64_COLOR_RED 0x02U
#define C64_COLOR_CYAN 0x03U
#define C64_COLOR_PURPLE 0x04U
#define C64_COLOR_GREEN 0x05U
#define C64_COLOR_BLUE 0x06U
#define C64_COLOR_YELLOW 0x07U
#define C64_COLOR_ORANGE 0x08U
#define C64_COLOR_BROWN 0x09U
#define C64_COLOR_PINK 0x0AU
#define C64_COLOR_DGREY 0x0BU
#define C64_COLOR_GREY 0x0CU
#define C64_COLOR_LGREEN 0x0DU
#define C64_COLOR_LBLUE 0x0EU
#define C64_COLOR_LGREY 0x0FU
/* Screen Macros */
#define BASE_SCREEN_ADDRESS 0x0400
#define BASE_COLOR_ADDRESS 0xD800
#define BASE_CHAR_ADDRESS 0x3000
#define CLRSCR \
__asm__("lda #$93"); \
__asm__("jsr $ffd2");
#define SET_COLORS(border,back,text) \
POKE(0xD020,border); \
POKE(0xD021,back); \
POKE(0x286,text);
#define SET_INK(text) \
POKE(0x286,text);
#define GRAPHICS_ON \
POKE(0xD018,21);
#define GRAPHICS_OFF \
POKE(0xD018,23);
#define VIC_INT_OFF \
POKE(56334U,(PEEK(56334U) & 254));
#define VIC_INT_ON \
POKE(56334U,(PEEK(56334U) | 1));
#define EA_DEACTIVATE \
POKE(1U,(PEEK(1U) & 251));
#define EA_ACTIVATE \
POKE(1U,(PEEK(1U) | 4));
#define SET_CHARRAM \
POKE(53272U,(PEEK(53272U) & 240) | 12);
#define WRITE_CHAR(x,y,ch) \
POKE(BASE_SCREEN_ADDRESS+(40*(y))+x, ch);
#define POKE_INK(x,y,col) \
POKE(BASE_COLOR_ADDRESS+(40*(y))+x, col);
#define WRITE_1U_DIGIT(x,y,val) \
WRITE_CHAR(x,y, 48 + val);