@@ -26,22 +26,20 @@ cc uxn.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -o uxn

 - `( comment )`

 ```

-( comment )

+;value ( alloc zero-page variable )

-;variable1

-;variable2

-;variable3

+@0010 ( start at page 1 )

-.there ( 0a 05 GTH ) JMC

+,there [ ,0a ,05 GTH ] JMC

 :here

-	< when not equal >

-	ee

+	( when not equal )

+	,ee

 	BRK

 :there

-	< when is equal >

-	ff

+	( when is equal )

+	,ff

 	BRK

 ```

@@ -49,7 +47,6 @@ cc uxn.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -o uxn

 ### Assembler

-- Crash on missing label

 - Catch overflow/underflow

 - Constants

 - Jumps should be relative

@@ -58,20 +55,12 @@ cc uxn.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -o uxn

 - Pointers/Literals

 - A Three-Way Decision Routine(http://www.6502.org/tutorials/compare_instructions.html)

-- Carry flag?

 - Print word to stdout

 - Draw pixel to screen

 - Detect mouse click

 - SDL Layer Emulator

 - Build PPU

-- Interrupts, vectors

-

-### 16 Bit Missions

-

-- 16 bits addressing

-- jumping to subroutine should be relative

-- Implement addressing

-- Implement 16 bits operations

+- Add flags..

 ## Refs

@@ -165,7 +165,7 @@ error(char *name)

 }

 int

-eval()

+eval(void)

 {

 	Uint8 instr = cpu.rom.dat[cpu.rom.ptr++];

 	if(cpu.literal > 0) {

@@ -197,7 +197,13 @@ start(FILE *f)

 	cpu.vreset = mempoke16(0xfffa);

 	cpu.vframe = mempoke16(0xfffc);

 	cpu.verror = mempoke16(0xfffe);

-	while(!(cpu.status & FLAG_HALT) && eval(cpu))

+	/* eval reset */

+	cpu.rom.ptr = cpu.vreset;

+	while(!(cpu.status & FLAG_HALT) && eval())

+		;

+	/*eval frame */

+	cpu.rom.ptr = cpu.vframe;

+	while(!(cpu.status & FLAG_HALT) && eval())

 		;

 	/* debug */

 	printf("ended @ %d steps | ", cpu.counter);