foo

assembler/tables.py

@@ -8,11 +8,11 @@
     "JNZ"   : "1"
 }
 
-space_table = {
-    "code"   : 128,
-    "video"  :  80,
-    "unused" :  32, 
-    "data"   :  16
+space_table = {       #   dec   |        bin        |  hex
+    "code"   : 128,   #   0:127 | 00000000:01111111 | 00:7f
+    "video"  :  80,   # 128:207 | 10000000:11001111 | 80:cf
+    "unused" :  32,   # 208:239 | 11010000:11101111 | d0:ef
+    "data"   :  16    # 240:255 | 11110000:11111111 | f0:ff
 }
 
 fields_table = {

assembler/vga.asm

@@ -1,12 +1,22 @@
+ 
 loop:
-	LDV
-	SUB a
-	STVI
+  LDV
+  SUB one
+  STVI
+  LOAD max
 delay:
-  SUB a
+  SUB one
+  STORE temp
+  LOAD max
+redelay:
+  SUB one
+  JNZ redelay
+  LOAD temp
   JNZ delay
-  LOAD a 
-	JNZ loop 
+  LOAD max 
+  JNZ loop 
 
 .video 0x00,0x00,0x01,0x02,0x03,0x03,0x04,0x05,0x06,0x07,0x07,0x08,0x09,0x0A,0x0B,0x0B,0x0C,0x0D,0x0E,0x0F,0x0F,0x10,0x11,0x12,0x13,0x13,0x14,0x15,0x16,0x17,0x17,0x18,0x19,0x1A,0x1B,0x1B,0x1C,0x1D,0x1E,0x1F,0x1F,0x20,0x21,0x22,0x23,0x23,0x24,0x25,0x26,0x27,0x27,0x28,0x29,0x2A,0x2B,0x2B,0x2C,0x2D,0x2E,0x2F,0x2F,0x30,0x31,0x32,0x33,0x33,0x34,0x35,0x36,0x37,0x37,0x38,0x39,0x3A,0x3B,0x3B,0x3C,0x3D,0x3E,0x3F
-.a 1
+.one 1
+.temp 0
+.max 255