shifting towards new structure

1 files changed, 2 insertions, 24 deletions

diff --git a/applesystem.h b/applesystem.h
index 469fcb3..f561d36 100644
--- a/applesystem.h
+++ b/applesystem.h
@@ -2,14 +2,7 @@ typedef unsigned char byte;
 typedef unsigned short address;
 byte acc, X, Y, P, S = 0x00;
 address PC = 0x0000;
-byte Memory[4096]; // TO DO. Add expansion capability to memory.
-
-/*
-To Do.
-	+ Find variables better passed as pointers instead
-	+ Clean up this messy code
-*/
-
+register byte Memory[4096]; // TO DO. Add expansion capability to memory.
 
 //	FLAGS
 const byte flag_N = 0x80;	// Negative (Note that byte cast is necessary here only)
@@ -45,7 +38,7 @@ void flagClear(byte flag){
 
 
 //	BCD
-
+// need to actually look into BCD on the 6502
 byte toBCD(byte x){
 	if (x < 100){
 		byte a = ((x / 10) << 4);
@@ -63,21 +56,6 @@ byte fromBCD(byte x){
 	return (a + b);
 }
 
-// addBCD()
-
-
-
-// Class of instructions
-//each one has every type of addressing mode, inherited from a base class.
-// the different addressing modes will be distinguished when the bytecode is called, it will run the instructions function with a selection for the 
-/* example
-
-Immediate     ADC #$44      $69  2   2
-instruction(0x69); -> ADC({enum for immediate}); 
-
-Zero Page     ADC $44       $65  2   3
-instruction(0x65); -> ADC({enum for Zero Page}); 
-*/
 // Set particular flags
 // Functions which quickly set specific flags that are straightforward checks, and are repeated often.
 void setFlagN(byte x){