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quickerNES
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Adding memory access functions

This commit is contained in:
Sergio Martin 2024-01-30 17:04:18 +01:00
parent 9209d17d48
commit 3e60608ad5
3 changed files with 21 additions and 8 deletions
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13
source/quickerNES/core/emu.hpp
View File

@ -191,12 +191,12 @@ class Emu
// Access to emulated memory, for viewer/cheater/debugger
// CHR
uint8_t const *chr_mem();
uint8_t *chr_mem() const;
long chr_size() const;
void write_chr(void const *, long count, long offset);
// Nametable
uint8_t *nametable_mem() { return emu.ppu.impl->nt_ram; }
uint8_t *nametable_mem() const { return emu.ppu.impl->nt_ram; }
long nametable_size() const { return 0x1000; }
// Built-in 2K memory
@ -213,11 +213,12 @@ class Emu
{
high_mem_size = 0x2000
};
uint8_t *high_mem() { return emu.impl->sram; }
uint8_t *high_mem() const { return emu.impl->sram; }
size_t get_high_mem_size() const { return high_mem_size; }
// Sprite memory
uint8_t *spr_mem() { return emu.ppu.getSpriteRAM(); }
uint16_t spr_mem_size() { return emu.ppu.getSpriteRAMSize(); }
uint8_t *spr_mem() const { return emu.ppu.getSpriteRAM(); }
uint16_t spr_mem_size() const { return emu.ppu.getSpriteRAMSize(); }
// End of public interface
public:
@ -277,7 +278,7 @@ inline void Emu::set_pixels(void *p, long n)
emu.ppu.host_row_bytes = n;
}
inline uint8_t const *Emu::chr_mem()
inline uint8_t *Emu::chr_mem() const
{
return cart()->chr_size() ? (uint8_t *)cart()->chr() : emu.ppu.impl->chr_ram;
}

4
source/quickerNES/core/ppu/ppuImpl.hpp
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@ -91,8 +91,8 @@ class Ppu_Impl : public ppu_state_t
static const uint16_t scanline_len = 341;
uint8_t *getSpriteRAM() { return spr_ram; }
uint16_t getSpriteRAMSize() { return spr_ram_size; }
uint8_t *getSpriteRAM() const { return (uint8_t*)spr_ram; }
uint16_t getSpriteRAMSize() const { return spr_ram_size; }
uint8_t spr_ram[spr_ram_size];
void all_tiles_modified();

12
source/quickerNES/nesInstance.hpp
View File

@ -12,6 +12,18 @@ class NESInstance final : public NESInstanceBase
uint8_t *getLowMem() const override { return _nes.get_low_mem(); };
size_t getLowMemSize() const override { return _nes.get_low_mem_size(); };
uint8_t *getWorkMem() const { return _nes.high_mem(); };
size_t getWorkMemSize() const { return _nes.get_high_mem_size(); };
uint8_t *getNametableMem() const { return _nes.nametable_mem(); };
size_t getNametableMemSize() const { return _nes.nametable_size(); };
uint8_t *getSpriteMem() const { return _nes.spr_mem(); };
size_t getSpriteMemSize() const { return _nes.spr_mem_size(); };
uint8_t *getCHRMem() const { return _nes.chr_mem(); };
size_t getCHRMemSize() const { return _nes.chr_size(); };
void serializeState(uint8_t *state) const override { _nes.serializeState(state); }
void deserializeState(const uint8_t *state) override { _nes.deserializeState(state); }
size_t getStateSize() const override { return _nes.getStateSize(); }