/////////////////////////////////////////////////////////////////
// drawTile
// Draws only one of the tiles of the map, given its coordinates.
// It calculates the location in the screen of the given tile and
// gets its actual value from the map array. Then it draws the
// tile to the screen.
//
void map_drawTile(u8 x, u8 y) {
// Calculate screen location where tile should be drawn
u8 *pmem = cpct_getScreenPtr(map_base_location, x, y*TILE_HEIGHT);
// Select appropriate colour pattern for the tile
// (YELLOW for walls, BLACK for background)
u8 c_pattern = cpct_px2byteM1(C_BLACK, C_BLACK, C_BLACK, C_BLACK);
if (map_getTile(x, y) != 0)
c_pattern = cpct_px2byteM1(C_YELLOW, C_YELLOW, C_YELLOW, C_YELLOW);
// Draw the tile as a solid box
cpct_drawSolidBox(pmem, c_pattern, TILE_WIDTH, TILE_HEIGHT);
}
// This example is built at 0x8000, so we can page at 0x4000.
// See the build configuration.
void main(void) {
u8* pvmem; // Pointer to video memory
u8* firstByteInPage = (u8*) 0x4000;
u8 i;
cpct_pageMemory(RAMCFG_0 | BANK_0); // Not needed, sets the memory with the first 64kb accesible, in consecutive banks.
// firstByteInPage point to address 0x4000. With this memory
// configuration, that is physical address 0x4000.
*firstByteInPage = cpct_px2byteM1(1, 1, 1, 1); // Set the first byte in page to all pixels with colour 1 (yellow by default).
cpct_pageMemory(RAMCFG_4 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_4: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_4, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_4,
// which is physical address 0x10000.
*firstByteInPage = cpct_px2byteM1(2, 2, 2, 2); // Set the first byte in page to all pixels with colour 2 (cyan by default ).
cpct_pageMemory(RAMCFG_5 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_5: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_5, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_5,
// which is physical address 0x14000.
*firstByteInPage = cpct_px2byteM1(3, 3, 3, 3); // Set the first byte in page to all pixels with colour 3 (red by default ).
cpct_pageMemory(RAMCFG_6 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_6: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_6, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_6,
// which is physical address 0x18000.
*firstByteInPage = cpct_px2byteM1(1, 1, 2, 2); // Set the first byte in page to all pixels with colours 1, 2 (yellow, cyan by default ).
cpct_pageMemory(RAMCFG_7 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_7: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_7, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_7,
// which is physical address 0x1C000.
*firstByteInPage = cpct_px2byteM1(1, 1, 3, 3); // Set the first byte in page to all pixels with colours 1, 3 (yellow, cyan by default ).
cpct_pageMemory(RAMCFG_0 | BANK_0); // Set the memory again to default state
// Clear Screen
cpct_memset(CPCT_VMEM_START, 0, 0x4000);
// Let's make visible the values we stored.
cpct_pageMemory(RAMCFG_0 | BANK_0); // Not needed, sets the memory with the first 64kb accesible, in consecutive banks.
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 0);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 0);
cpct_drawStringM1("RAMCFG_0", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_4 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 16);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 16);
cpct_drawStringM1("RAMCFG_4", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_5 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 32);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 32);
cpct_drawStringM1("RAMCFG_5", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_6 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 48);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 48);
cpct_drawStringM1("RAMCFG_6", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_7 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 64);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 64);
cpct_drawStringM1("RAMCFG_7", pvmem, 1, 0);
cpct_pageMemory(DEFAULT_MEM_CFG); // Equivalent to RAMCFG_0 | BANK_0
// Loop forever
while (1);
}
