Minor changes

1 files changed, 10 insertions, 4 deletions

diff --git a/src/mem.c b/src/mem.c
index 12b039f..ec34750 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -7,7 +7,7 @@ extern unsigned char DEFAULT_FONT[];
 
 void MemInit(){
   MemSet(0,0,4096);
-  MemCopy(DEFAULT_FONT,16*5,ADDR_FONT);
+  MemStore(DEFAULT_FONT,16*5,ADDR_FONT);
 }
 
 void MemSet(int addr, unsigned char value, int size){
@@ -15,12 +15,12 @@ void MemSet(int addr, unsigned char value, int size){
     memory[addr+i]=value;
 }
 
-void MemCopy(unsigned char *data, int size, int addr){
+void MemStore(unsigned char *data, int size, int addr){
   for(int i=0;i<size;i++)
     memory[addr+i]=data[i];
 }
 
-void MemRead(unsigned char *data, int size, int addr){
+void MemLoad(unsigned char *data, int size, int addr){
   int location=addr;
   for(int i=0;i<size;i++){
     data[i]=memory[addr+i];
@@ -33,6 +33,8 @@ void MemLoadROM(char *path){
   ptr=fopen(path,"rb");
   int location=ADDR_ROM;
   while(fread(&byte,1,1,ptr)==1){
+    if(location >= 4096)
+      break;
     MemSet(location,byte,1);
     location++;
   }
@@ -40,7 +42,11 @@ void MemLoadROM(char *path){
 }
 
 void MemDump(){
-  for(int addr=0;addr<4096;addr+=2){
+  MemDumpRange(0,4096);
+}
+
+void MemDumpRange(int from, int size){
+  for(int addr=from;addr<from+size;addr+=2){
     printf("0x%03x: %02x %02x\n",addr,memory[addr], memory[addr+1]);
   }
 }