lauchmelder/NESemu
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added breakpoints

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This commit is contained in:
Lauchmelder 2022-03-01 03:34:19 +01:00
parent 53a7baf91f
commit 1220631e7e
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GPG key ID: C2403C69D78F011D
23 changed files with 303 additions and 220 deletions
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8
src/Bus.cpp
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@ -10,7 +10,7 @@ Bus::Bus() :
RAM = std::vector<Byte>(0x800);
LOG_CORE_INFO("Allocating VRAM");
VRAM = std::vector<Byte>(0x1000);
VRAM = std::vector<Byte>(0x800);
LOG_CORE_INFO("Inserting cartridge");
cartridge.Load("roms/nestest.nes");
@ -107,6 +107,9 @@ Byte Bus::ReadPPU(Word addr)
}
else if(0x2000 <= addr && addr < 0x4000)
{
if (cartridge.MapCIRAM(addr))
return cartridge.ReadVRAM(addr);
return VRAM[addr & 0xFFF];
}
@ -139,6 +142,9 @@ void Bus::WritePPU(Word addr, Byte val)
}
else if (0x2000 <= addr && addr < 0x4000)
{
if(cartridge.MapCIRAM(addr))
cartridge.WriteVRAM(addr, val);
VRAM[addr & 0xFFF] = val;
}
}