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internal.h
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internal.h
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#pragma once
#include "vg8m.h"
enum {
SYS_ROM_SIZE = 0x0800,
SYS_RAM_SIZE = 0x0700,
HWREGS_SIZE = sizeof(VG8MRegisters),
CHAR_ROM_SIZE = 0x1000,
USER_RAM_SIZE = 0x4000,
CART_ROM_SIZE = 0x8000,
CART_2BPP_SIZE = 0x4000,
CART_3BPP_SIZE = 0x3000,
};
enum {
SYS_ROM_ADDR = 0x0000, SYS_ROM_END = 0x07FF,
SYS_RAM_ADDR = 0x0800, SYS_RAM_END = 0x0EFF,
HWREGS_ADDR = 0x0F00, HWREGS_END = HWREGS_ADDR + HWREGS_SIZE - 1,
CHAR_ROM_ADDR = 0x1000, CHAR_ROM_END = 0x1FFF,
USER_RAM_ADDR = 0x4000, USER_RAM_END = 0x7FFF,
CART_ROM_ADDR = 0x8000, CART_ROM_END = 0xFFFF,
};
enum {
INT_VBLANK = 0x20,
INT_HBLANK = 0x22,
};
enum {
MODE_HBLANK,
MODE_VBLANK,
MODE_DRAW,
};
enum {
CYCLES_HBLANK = 200,
CYCLES_VBLANK = 500,
CYCLES_DRAW = 200,
};