@@ -20,5 +20,5 @@ cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werr

 # cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator

 # run

-./bin/assembler projects/software/left.usm bin/boot.rom

+./bin/assembler projects/software/noodle.usm bin/boot.rom

 ./bin/emulator bin/boot.rom

@@ -409,7 +409,7 @@ file_poke(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1)

 Uint8

 system_poke(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1)

 {

-	loadtheme(&m[0xfff8]);

+	loadtheme(&m[PAGE_DEVICE + 0x00f8]);

 	(void)ptr;

 	(void)b0;

 	return b1;

@@ -431,7 +431,7 @@ start(Uxn *u)

 {

 	int ticknext = 0;

 	evaluxn(u, u->vreset);

-	loadtheme(u->ram.dat + 0xfff8);

+	loadtheme(u->ram.dat + PAGE_DEVICE + 0x00f8);

 	if(screen.reqdraw)

 		redraw(pixels, u);

 	while(1) {

@@ -18,8 +18,8 @@ WITH REGARD TO THIS SOFTWARE.

 /* clang-format off */

 void   setflag(Uint8 *a, char flag, int b) { if(b) *a |= flag; else *a &= (~flag); }

 int    getflag(Uint8 *a, char flag) { return *a & flag; }

-Uint8  devpoke8(Uxn *u, Uint8 id, Uint8 b0, Uint8 b1){ return id < u->devices ? u->dev[id].poke(u->ram.dat, 0xff00 + id * 0x10, b0, b1) : b1; }

-void   mempoke8(Uxn *u, Uint16 a, Uint8 b) { u->ram.dat[a] = a >= 0xff00 ? devpoke8(u, (a & 0xff) >> 4, a & 0xf, b) : b; }

+Uint8  devpoke8(Uxn *u, Uint8 id, Uint8 b0, Uint8 b1){ return id < u->devices ? u->dev[id].poke(u->ram.dat, PAGE_DEVICE + id * 0x10, b0, b1) : b1; }

+void   mempoke8(Uxn *u, Uint16 a, Uint8 b) { u->ram.dat[a] = a >= PAGE_DEVICE ? devpoke8(u, (a & 0xff) >> 4, a & 0xf, b) : b; }

 Uint8  mempeek8(Uxn *u, Uint16 a) { return u->ram.dat[a]; }

 void   mempoke16(Uxn *u, Uint16 a, Uint16 b) { mempoke8(u, a, b >> 8); mempoke8(u, a + 1, b); }

 Uint16 mempeek16(Uxn *u, Uint16 a) { return (mempeek8(u, a) << 8) + mempeek8(u, a + 1); }

@@ -212,9 +212,9 @@ loaduxn(Uxn *u, char *filepath)

 	if(!(f = fopen(filepath, "rb")))

 		return haltuxn(u, "Missing input rom.", 0);

 	fread(u->ram.dat, sizeof(u->ram.dat), 1, f);

-	u->vreset = mempeek16(u, 0xfff0);

-	u->vframe = mempeek16(u, 0xfff2);

-	u->verror = mempeek16(u, 0xfff4);

+	u->vreset = mempeek16(u, PAGE_DEVICE + 0x00f0);

+	u->vframe = mempeek16(u, PAGE_DEVICE + 0x00f2);

+	u->verror = mempeek16(u, PAGE_DEVICE + 0x00f4);

 	printf("Uxn loaded[%s] vrst:%04x vfrm:%04x verr:%04x.\n",

 		filepath,

 		u->vreset,

@@ -227,7 +227,7 @@ Device *

 portuxn(Uxn *u, char *name, Uint8 (*pofn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1))

 {

 	Device *d = &u->dev[u->devices++];

-	d->addr = 0xff00 + (u->devices - 1) * 0x10;

+	d->addr = PAGE_DEVICE + (u->devices - 1) * 0x10;

 	d->poke = pofn;

 	printf("Device #%d: %s, at 0x%04x \n", u->devices - 1, name, d->addr);

 	return d;

@@ -20,6 +20,7 @@ typedef signed short Sint16;

 #define FLAG_SHORT 0x02

 #define FLAG_RETURN 0x04

 #define FLAG_COND 0x08

+#define PAGE_DEVICE 0xff00

 typedef struct {

 	Uint8 ptr;