add incomplete ppuHEADmaster

1 files changed, 5 insertions, 0 deletions

diff --git a/cpu.c b/cpu.c
index a04c603..bf8ab90 100644
--- a/cpu.c
+++ b/cpu.c
@@ -54,6 +54,8 @@ peek(uint16_t addr)
                         fprintf(stderr, "PRG ROG size is not 0x4000 nor 0x8000\n"), exit(1);
         } else if ((addr >= 0x4000 && addr <= 0x4013) || addr == 0x4015 || addr == 0x4017)
                 return apu_read(addr);
+        else if (addr >= 0x2000 && addr <= 0x3FFF)
+                return ppu_read(addr);
         else
                 return memory[addr];
 }
@@ -71,6 +73,9 @@ memwrite(uint16_t addr, uint8_t byte)
         if (addr >= 0x4000 && addr <= 0x4017) {
                 apu_write(addr, byte);
                 return;
+        } else if (addr >= 0x2000 && addr <= 0x3FFF) {
+                ppu_write(addr, byte);
+                return;
         }
 
         MEMORY_MIRROR(addr);