From 1189c5e8a5ea68e194a581ea8d7a5de5eb58b3b8 Mon Sep 17 00:00:00 2001
From: Nathaniel Walizer <robots.are.love@gmail.com>
Date: Tue, 1 Apr 2025 19:12:59 -0700
Subject: [PATCH] Fix CHR_ROM size overflow

---
 src/ppu.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ppu.h b/src/ppu.h
index 2ff9571..4b9244c 100644
--- a/src/ppu.h
+++ b/src/ppu.h
@@ -103,11 +103,11 @@ typedef struct {
     uint16_t t;         // temp VRAM addr
     uint8_t latch;      // aka "w" - TODO: Could this be a flag?
     uint8_t addr_inc;   // Auto-increment (1 or 32)
-    uint8_t unused[2];  // 2 B unused
     uint8_t bus;        // Last value transmitted (NOT next data val)
+    uint8_t unused; // NOTE: 1 B unused
 
     // Static memory banks
-    uint8_t n_chr_banks; // TODO: Changed from int; consequences?
+    int16_t n_chr_banks; // TODO: Changed from int; consequences?
     uint8_t palette[32]; // Rendering palette with transparency masked
     uint8_t pal_ram[32]; // Raw palette data in RAM
     uint8_t oam[NES_PPU_OAM_SIZE];