Feature: Added a font

3 files changed, 32 insertions, 2 deletions

diff --git a/emulator.c b/emulator.c
index 699999c..1c02036 100644
--- a/emulator.c
+++ b/emulator.c
@@ -1,5 +1,31 @@
 #include <emulator.h>
 
+int emulator_initialise(Emulator* emulator)
+{
+    uint8_t font[] = {
+        0xF0, 0x90, 0x90, 0x90, 0xF0, // 0
+        0x20, 0x60, 0x20, 0x20, 0x70, // 1
+        0xF0, 0x10, 0xF0, 0x80, 0xF0, // 2
+        0xF0, 0x10, 0xF0, 0x10, 0xF0, // 3
+        0x90, 0x90, 0xF0, 0x10, 0x10, // 4
+        0xF0, 0x80, 0xF0, 0x10, 0xF0, // 5
+        0xF0, 0x80, 0xF0, 0x90, 0xF0, // 6
+        0xF0, 0x10, 0x20, 0x40, 0x40, // 7
+        0xF0, 0x90, 0xF0, 0x90, 0xF0, // 8
+        0xF0, 0x90, 0xF0, 0x10, 0xF0, // 9
+        0xF0, 0x90, 0xF0, 0x90, 0x90, // A
+        0xE0, 0x90, 0xE0, 0x90, 0xE0, // B
+        0xF0, 0x80, 0x80, 0x80, 0xF0, // C
+        0xE0, 0x90, 0x90, 0x90, 0xE0, // D
+        0xF0, 0x80, 0xF0, 0x80, 0xF0, // E
+        0xF0, 0x80, 0xF0, 0x80, 0x80  // F
+                     };
+
+        memcpy(emulator->memory + 0x50, font, sizeof(font));
+
+        return 0;
+}
+
 int emulator_load_rom(Emulator* emulator, char* rom_name)
 {
     printf("load rom!: %s\n", rom_name);
diff --git a/emulator.h b/emulator.h
index b685bea..cfbbeff 100644
--- a/emulator.h
+++ b/emulator.h
@@ -2,7 +2,8 @@
 #define _EMULATOR_H_
 
 #include <stdio.h>
-#include  <sys/stat.h>
+#include <sys/stat.h>
+#include <string.h>
 
 typedef struct
 {
@@ -37,6 +38,7 @@ typedef struct
     uint8_t memory[4096];
 } Emulator;
 
+int emulator_initialise(Emulator* emulator);
 int emulator_load_rom(Emulator* emulator, char* rom_name);
 int emulator_tick(Emulator* emulator);
 
diff --git a/main.c b/main.c
index 48d35ee..7c5a2fc 100644
--- a/main.c
+++ b/main.c
@@ -16,6 +16,8 @@ int main(int argc, char** argv)
 
     Emulator emulator;
 
+    emulator_initialise(&emulator);
+
     if(emulator_load_rom(&emulator, argv[1]) != 0)
         return 2;
 
@@ -23,7 +25,7 @@ int main(int argc, char** argv)
 
     for(int i = 0; i < sizeof(emulator.memory); ++i)
     {
-        printf("%c ", emulator.memory[i]);
+        printf("0x%x ", emulator.memory[i]);
     }
 
     putchar('\n');