[cartridge/main] Fixed warnings and Address decoding

- Fixed mapper 000 by chaning the mod operation to not disinclude 0x3FFF from being turned into 0. This fixes all issues with mapper 000 as it matches other established emulators

- Fixed all warnings other than non-disableable ones.

- Added a way to assign a test rom name so that it can start at a custom location rather than the address vector at 0xFFFC

bus.c

@@ -1,4 +1,5 @@
 #include "bus.h"
+#include <string.h>
 
 bool debug = true;
 
@@ -113,8 +114,7 @@ void activateCpuNmi(){
 
 
 
-
-
+#define ROM_TEST_NAME ("nestest.nes")
 
 
 int main(int argc, char * argv[]){
@@ -132,9 +132,15 @@ int main(int argc, char * argv[]){
 
     //load the CHR and PRG banks from the .nes file (argv[1]), also loads the header for mapper construction
     initBanks(argv[1]);
-    //cpu->PC = romStartAddress; NOT FUNC YET
+    if(strstr(argv[1], ROM_TEST_NAME)){
+        if(strlen(strstr(argv[1], ROM_TEST_NAME)) == strlen(ROM_TEST_NAME)){ //Load test rom at 0xC000
             cpu->PC = 0xC000; 
-
+        }else{
+            cpu->PC = romStartAddress; //Rom was in a folder called 'ROM_TEST_NAME' rather than loading a file with the same name
+        }
+    }else{
+        cpu->PC = romStartAddress; //Rom was not a test rom. Load normally
+    }
 
     while(true){
 

cartridge.c

@@ -24,7 +24,7 @@ void loadRomfileHeader(FILE * romfile){
     for(byte i = 0; i < 5; i++){
         Header.flags.array[i] = getc(romfile);
     }
-    for(byte i = 0; i < 4; i++){ //Remove padding
+    for(byte i = 0; i < 5; i++){ //Remove padding
         getc(romfile);
     }
 }
@@ -52,6 +52,13 @@ void initBanks(char name[]){
         CHRROM[i] = getc(romfile);
     }
 
+    unsigned long read_size = ftell(romfile);
+    fseek(romfile, 0, SEEK_END);
+    unsigned long file_size = ftell(romfile);
+    if(read_size != file_size){
+      fprintf(stderr, "WARNING: Bytes read does not match the file size! Nesem Reported = 0x%lX, File Size = 0x%lX!\n", read_size, file_size);
+    }
+
     fclose(romfile);
 
     //Read rom start Address
@@ -67,7 +74,7 @@ word mapper000_Read(word address, bool ppu){
             if(Header.PRG_BANKS > 1){ //32K model
                 return PRGROM[address - 0x8000];
             }else{ //16K model
-                return PRGROM[(address - 0x8000) % 0x3FFF];
+                return PRGROM[(address - 0x8000) % 0x4000];
             }
         }
     }else{ //if PPU

cpu.c

@@ -1822,14 +1822,14 @@ void raiseError(unsigned int err, CPU * __restrict__ cpu){
         "Cycles was allocated but not set",
     };
 
-    fprintf(stderr, "%s", ERROR_STR[err]);
+    fprintf(stderr, "%s\n", ERROR_STR[err]);
         fprintf(stderr, "CRASH!!!!\n\n");
         fprintf(stderr, "\tLOCATION: %#06x\n", cpu->PC);
         fprintf(stderr, "\tOPCODE: %#06x\n", busRead8(cpu->PC));
         if(err != UNALLOC_NAME && err != UNALLOC_MICRO)
             fprintf(stderr, "\tNAME: \"%s\"\n", cpu->opcodes[busRead8(cpu->PC)].name);
         else
-            fprintf(stderr, "\tNAME: \"%s\"\n", NULL);
+            fprintf(stderr, "\tNAME: \"(NULL)\"\n");
         fprintf(stderr, "\tMICRO: %p\n", cpu->opcodes[busRead8(cpu->PC)].microcode);
         fprintf(stderr, "\tMODE: %p\n", cpu->opcodes[busRead8(cpu->PC)].mode);
     exit(err);
@@ -1878,9 +1878,11 @@ void handleErrors(CPU * __restrict__ cpu){
     if(cur_inst.bytes == 0){
         raiseError(UNKNOWN_BYTES, cpu);
     }
+    /*
     if(cur_inst.microcode < ORA || cur_inst.microcode > TYA){
         raiseError(UNKNOWN_MICRO, cpu);
     }
+    */
 
     printf("OP: %x\n", busRead8(cpu->PC));
 }

ppu.c

@@ -179,7 +179,7 @@ void ppuRegWrite(word address, byte data){
         break;
 
         default:
-            fprintf(stderr, "ERR: Invalid write to PPU register of address %llX\n!", address + 0x2000);
+            fprintf(stderr, "ERR: Invalid write to PPU register of address %X\n!", address + 0x2000);
             abort();
         break;
     }
@@ -248,7 +248,7 @@ byte ppuRegRead(word address){ //send the registers to the bus so the components
         break;
 
         default:
-            fprintf(stderr, "ERR: Invalid read to PPU register of address %llX\n!", address + 0x2000);
+            fprintf(stderr, "ERR: Invalid read to PPU register of address %X\n!", address + 0x2000);
             abort();
         break;
     }