32 lines
748 B
C
32 lines
748 B
C
#include <bus.h>
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// 0x0000 - 0x3FFF : ROM Bank 0
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// 0x4000 - 0x7FFF : ROM Bank 1 - Switchable
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// 0x8000 - 0x97FF : CHR RAM
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// 0x9800 - 0x9BFF : BG Map 1
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// 0x9C00 - 0x9FFF : BG Map 2
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// 0xA000 - 0xBFFF : Cartridge RAM
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// 0xC000 - 0xCFFF : RAM Bank 0
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// 0xD000 - 0xDFFF : RAM Bank 1-7 - switchable - Color only
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// 0xE000 - 0xFDFF : Reserved - Echo RAM
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// 0xFE00 - 0xFE9F : Object Attribute Memory
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// 0xFEA0 - 0xFEFF : Reserved - Unusable
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// 0xFF00 - 0xFF7F : I/O Registers
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// 0xFF80 - 0xFFFE : Zero Page
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u8 bus_read(u16 address) {
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if(address < 0x8000) {
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return cart_read(address);
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}
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NO_IMPL
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}
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void bus_write(u16 address, u8 value) {
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if(address < 0x8000) {
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cart_write(address);
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return;
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}
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NO_IMPL
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} |