~rabbits/uxn-playdate

700750d1ad6d9564087aa4a0dc7edb8fb64cdb51 — Devine Lu Linvega 6 days ago 6cb943d main 
Ported to new device masks
patch browse .tar.gz 
4 files changed, 104 insertions(+), 117 deletions(-)

M README.md
M src/main.c
M src/uxn.c
M src/uxn.h

M README.md => README.md +1 -1
@@ 17,7 17,7 @@ sudo pacman -Sy gcc-arm-none-eabi arm-none-eabi-newlib clang #Arch
Set `PLAYDATE_SDK` in your environment to the location of the PlaydateSDK directory, then run the `Makefile`:

```sh
export PLAYDATE_SDK=/home/me/Documents/playdate/PlaydateSDK-1.3.1
export PLAYDATE_SDK_PATH=/home/neauoire/Documents/playdate/PlaydateSDK-1.13.1
make
```



M src/main.c => src/main.c +9 -6
@@ 14,6 14,9 @@ static Apu apu[POLYPHONY];
Uxn u;
Ppu ppu;

Uint16 deo_mask[] = {0x6a08, 0x0300, 0xc028, 0x8000, 0x8000, 0x8000, 0x8000, 0x0000, 0x0000, 0x0000, 0xa260, 0xa260, 0x0000, 0x0000, 0x0000, 0x0000};
Uint16 dei_mask[] = {0x0000, 0x0000, 0x003c, 0x0014, 0x0014, 0x0014, 0x0014, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x07fd, 0x0000, 0x0000, 0x0000};

/* Varvara */

static const char *errors[] = {


@@ 94,12 97,12 @@ audio_deo(Uint8 *d, Uint8 port)
	*/
}

static Uint8
emu_dei(Uxn *u, Uint8 addr)
 Uint8
uxn_dei(Uxn *u, Uint8 addr)
{
	Uint8 *d = &u->dev[addr & 0xf0];
	switch(addr) {
	case 0x22: return 0x1;
	case 0x22: return 0x01;
	case 0x23: return 0x90;
	case 0x24: return 0x00;
	case 0x25: return 0xf0;


@@ 107,8 110,8 @@ emu_dei(Uxn *u, Uint8 addr)
	return u->dev[addr];
}

static void
emu_deo(Uxn *u, Uint8 addr, Uint8 v)
 void
uxn_deo(Uxn *u, Uint8 addr)
{
	Uint8 *d = &u->dev[addr & 0xf0];
	switch(addr) {


@@ 154,7 157,7 @@ static int
emu_start(Uxn *u)
{
	free(u->ram);
	if(!uxn_boot(u, (Uint8 *)calloc(0x10000 * RAM_PAGES, sizeof(Uint8)), emu_dei, emu_deo))
	if(!uxn_boot(u, (Uint8 *)calloc(0x10000 * RAM_PAGES, sizeof(Uint8))))
		return emu_error("Boot", "Failed to start uxn.");
	memcpy(u->ram + 0x100, boot , sizeof(boot));
	return 1;


M src/uxn.c => src/uxn.c +82 -104
@@ 11,14 11,6 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE.
*/

/* Registers

[ . ][ . ][ . ][ L ][ N ][ T ] <
[ . ][ . ][ . ][   H2   ][ T ] <
[   L2   ][   N2   ][   T2   ] <

*/

#define T s->dat[s->ptr-1]
#define N s->dat[s->ptr-2]
#define L s->dat[s->ptr-3]


@@ 27,34 19,22 @@ WITH REGARD TO THIS SOFTWARE.
#define N2 PEEK16(s->dat+s->ptr-4)
#define L2 PEEK16(s->dat+s->ptr-6)

/* Registers

[ . ][ . ][ . ][ L ][ N ][ T ] <
[ . ][ . ][ . ][   H2   ][ T ] <
[   L2   ][   N2   ][   T2   ] <

*/

#define HALT(c) { return uxn_halt(u, ins, (c), pc - 1); }
#define INC(mul, add) { if(mul > s->ptr) HALT(1) s->ptr += k * mul + add; if(s->ptr > 255) HALT(2) }
#define DEC(mul, sub) { if(mul > s->ptr) HALT(1) s->ptr -= !k * mul - sub; if(s->ptr > 255) HALT(2) }
#define SET(mul, add) { if(mul > s->ptr) HALT(1) s->ptr += k * mul + add; if(s->ptr > 254) HALT(2) }
#define PUT(o, v) { s->dat[s->ptr - o - 1] = (v); }
#define PUT2(o, v) { tmp = (v); s->dat[s->ptr - o - 2] = tmp >> 8; s->dat[s->ptr - o - 1] = tmp; }
#define PUSH(stack, v) { stack->dat[stack->ptr++] = (v); }
#define PUSH2(stack, v) { tmp = (v); stack->dat[stack->ptr] = (v) >> 8; stack->dat[stack->ptr + 1] = (v); stack->ptr += 2; }
#define SEND(a, b) { u->dev[a] = b; if((callbacks[(a) >> 4] >> ((a) & 0xf)) & 0x1) u->deo(u, a, b); }

static 
Uint16 callbacks[] = {
        0xffff, /* 00 system */
        0xffff, /* 10 console */
        0xc028, /* 20 screen */
        0x8000, /* 30 audio 0 */
        0x8000, /* 40 audio 1 */
        0x8000, /* 50 audio 2 */
        0x8000, /* 60 audio 3 */
        0x0000, /* 70 midi */
        0x0000, /* 80 mouse */
        0x0000, /* 90 controller*/
        0xa260, /* a0 file 0 */
        0xa260, /* b0 file 1 */
        0xffff, /* c0 datetime */
        0x0000, /* d0 empty */
        0x0000, /* e0 empty */
        0x0000  /* f0 empty */
};
#define PUSH(stack, v) { if(s->ptr > 254) HALT(2) stack->dat[stack->ptr++] = (v); }
#define PUSH2(stack, v) { if(s->ptr > 253) HALT(2) tmp = (v); stack->dat[stack->ptr] = (v) >> 8; stack->dat[stack->ptr + 1] = (v); stack->ptr += 2; }
#define DEO(a, b) { u->dev[a] = b; if((deo_mask[(a) >> 4] >> ((a) & 0xf)) & 0x1) uxn_deo(u, a); }
#define DEI(a, b) { PUT(a, ((dei_mask[(b) >> 4] >> ((b) & 0xf)) & 0x1) ? uxn_dei(u, b) : u->dev[b])  }

int
uxn_eval(Uxn *u, Uint16 pc)


@@ 73,80 53,80 @@ uxn_eval(Uxn *u, Uint16 pc)
			case 0x00: /* BRK   */ return 1;
			case 0xff: /* JCI   */ pc += !!s->dat[--s->ptr] * PEEK16(u->ram + pc) + 2; break;
			case 0xfe: /* JMI   */ pc += PEEK16(u->ram + pc) + 2; break;
			case 0xfd: /* JSI   */ PUSH2(u->rst, pc + 2); pc += PEEK16(u->ram + pc) + 2; break;
			case 0xfc: /* LIT   */ PUSH(u->wst, u->ram[pc++]); break;
			case 0xfb: /* LIT2  */ PUSH2(u->wst, PEEK16(u->ram + pc)); pc += 2; break;
			case 0xfa: /* LITr  */ PUSH(u->rst, u->ram[pc++]); break;
			case 0xf9: /* LIT2r */ PUSH2(u->rst, PEEK16(u->ram + pc)); pc += 2; break;
			case 0xfd: /* JSI   */ PUSH2(u->rst, pc + 2) pc += PEEK16(u->ram + pc) + 2; break;
			case 0xfc: /* LIT   */ PUSH(s, u->ram[pc++]) break;
			case 0xfb: /* LIT2  */ PUSH2(s, PEEK16(u->ram + pc)) pc += 2; break;
			case 0xfa: /* LITr  */ PUSH(s, u->ram[pc++]) break;
			case 0xf9: /* LIT2r */ PUSH2(s, PEEK16(u->ram + pc)) pc += 2; break;
			/* ALU */
			case 0x21: /* INC2 */ t=T2;           INC(2, 0) PUT2(0, t + 1) break;                              
			case 0x01: /* INC  */ t=T;            INC(1, 0) PUT(0, t + 1); break; 
			case 0x22: /* POP2 */                 DEC(2, 0) break;                                                     
			case 0x02: /* POP  */                 DEC(1, 0) break; 
			case 0x23: /* NIP2 */ t=T2;           DEC(2, 0) PUT2(0, t) break;                                 
			case 0x03: /* NIP  */ t=T;            DEC(1, 0) PUT(0, t) break; 
			case 0x24: /* SWP2 */ t=T2;n=N2;      INC(4, 0) PUT2(2, t) PUT2(0, n); break;             
			case 0x04: /* SWP  */ t=T;n=N;        INC(2, 0) PUT(0, n) PUT(1, t); break; 
			case 0x25: /* ROT2 */ t=T2;n=N2;l=L2; INC(6, 0) PUT2(0, l) PUT2(2, t) PUT2(4, n) break; 
			case 0x05: /* ROT  */ t=T;n=N;l=L;    INC(3, 0) PUT(0, l) PUT(1, t) PUT(2, n) break; 
			case 0x26: /* DUP2 */ t=T2;           INC(2, 2) PUT2(0, t) PUT2(2, t) break;                     
			case 0x06: /* DUP  */ t=T;            INC(1, 1) PUT(0, t) PUT(1, t) break; 
			case 0x27: /* OVR2 */ t=T2;n=N2;      INC(4, 2) PUT2(0, n) PUT2(2, t) PUT2(4, n) break; 
			case 0x07: /* OVR  */ t=T;n=N;        INC(2, 1) PUT(0, n) PUT(1, t) PUT(2, n) break; 
			case 0x28: /* EQU2 */ t=T2;n=N2;      INC(4,-3) PUT(0, n == t) break;                    
			case 0x08: /* EQU  */ t=T;n=N;        INC(2,-1) PUT(0, n == t) break; 
			case 0x29: /* NEQ2 */ t=T2;n=N2;      INC(4,-3) PUT(0, n != t) break;                    
			case 0x09: /* NEQ  */ t=T;n=N;        INC(2,-1) PUT(0, n != t) break; 
			case 0x2a: /* GTH2 */ t=T2;n=N2;      INC(4,-3) PUT(0, n > t)  break;                    
			case 0x0a: /* GTH  */ t=T;n=N;        INC(2,-1) PUT(0, n > t) break; 
			case 0x2b: /* LTH2 */ t=T2;n=N2;      INC(4,-3) PUT(0, n < t)  break;                    
			case 0x0b: /* LTH  */ t=T;n=N;        INC(2,-1) PUT(0, n < t) break; 
			case 0x2c: /* JMP2 */ t=T2;           DEC(2, 0) pc = t; break;                                      
			case 0x0c: /* JMP  */ t=T;            DEC(1, 0) pc += (Sint8)(t);  break; 
			case 0x2d: /* JCN2 */ t=T2;n=L;       DEC(3, 0) if(n) { pc = t; } break;                    
			case 0x0d: /* JCN  */ t=T;n=N;        DEC(2, 0) pc += !!n * (Sint8)t; break; 
			case 0x2e: /* JSR2 */ t=T2;           DEC(2, 0) PUSH2(u->rst, pc) pc = t; break;                 
			case 0x0e: /* JSR  */ t=T;            DEC(1, 0) PUSH2(u->rst, pc) pc += (Sint8)t; break;
			case 0x2f: /* STH2 */ t=T2; if(ins & 0x40) { u->rst->ptr -= !k * 2; PUSH2(u->wst, t); } else{ u->wst->ptr -= !k * 2; PUSH2(u->rst, t); } break; 
			case 0x0f: /* STH  */ t=T;  if(ins & 0x40) { u->rst->ptr -= !k; PUSH(u->wst, t); } else{ u->wst->ptr -= !k; PUSH(u->rst, t); } break; 
			case 0x30: /* LDZ2 */ t=T;            INC(1, 1) PUT2(0, PEEK16(u->ram + t)) break;                       
			case 0x10: /* LDZ  */ t=T;            INC(1, 0) PUT(0, u->ram[t]) break; 
			case 0x31: /* STZ2 */ t=T;n=H2;       DEC(3, 0) POKE16(u->ram + t, n) break;                     
			case 0x11: /* STZ  */ t=T;n=N;        DEC(2, 0) u->ram[t] = n; break; 
			case 0x32: /* LDR2 */ t=T;            INC(1, 1) PUT2(0, PEEK16(u->ram + pc + (Sint8)t)) break;           
			case 0x12: /* LDR  */ t=T;            INC(1, 0) PUT(0, u->ram[pc + (Sint8)t]) break;
			case 0x33: /* STR2 */ t=T;n=H2;       DEC(3, 0) POKE16(u->ram + pc + (Sint8)t, n) break;         
			case 0x13: /* STR  */ t=T;n=N;        DEC(2, 0) u->ram[pc + (Sint8)t] = n; break; 
			case 0x34: /* LDA2 */ t=T2;           INC(2, 0) PUT2(0, PEEK16(u->ram + t)) break;                      
			case 0x14: /* LDA  */ t=T2;           INC(2,-1) PUT(0, u->ram[t]) break;
			case 0x35: /* STA2 */ t=T2;n=N2;      DEC(4, 0) POKE16(u->ram + t, n) break;                    
			case 0x15: /* STA  */ t=T2;n=L;       DEC(3, 0) u->ram[t] = n; break; 
			case 0x36: /* DEI2 */ t=T;            INC(1, 1) PUT(1, u->dei(u, t)) PUT(0, u->dei(u, t + 1)) break;      
			case 0x16: /* DEI  */ t=T;            INC(1, 0) PUT(0, u->dei(u, t)) break;
			case 0x37: /* DEO2 */ t=T;n=N;l=L;    DEC(3, 0) SEND(t, l) SEND(t + 1, n) break; 
			case 0x17: /* DEO  */ t=T;n=N;        DEC(2, 0) SEND(t, n) break; 
			case 0x38: /* ADD2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n + t) break; 
			case 0x18: /* ADD  */ t=T;n=N;        INC(2,-1) PUT(0, n + t) break;
			case 0x39: /* SUB2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n - t) break; 
			case 0x19: /* SUB  */ t=T;n=N;        INC(2,-1) PUT(0, n - t) break;
			case 0x3a: /* MUL2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n * t) break; 
			case 0x1a: /* MUL  */ t=T;n=N;        INC(2,-1) PUT(0, n * t) break;
			case 0x3b: /* DIV2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n / t) break; 
			case 0x1b: /* DIV  */ t=T;n=N;        INC(2,-1) PUT(0, n / t) break;
			case 0x3c: /* AND2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n & t) break; 
			case 0x1c: /* AND  */ t=T;n=N;        INC(2,-1) PUT(0, n & t) break;
			case 0x3d: /* ORA2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n | t) break; 
			case 0x1d: /* ORA  */ t=T;n=N;        INC(2,-1) PUT(0, n | t) break;
			case 0x3e: /* EOR2 */ t=T2;n=N2;      INC(4,-2) PUT2(0, n ^ t) break; 
			case 0x1e: /* EOR  */ t=T;n=N;        INC(2,-1) PUT(0, n ^ t) break;
			case 0x3f: /* SFT2 */ t=T;n=H2;       INC(3,-1) PUT2(0, n >> (t & 0x0f) << ((t & 0xf0) >> 4)) break;
			case 0x1f: /* SFT  */ t=T;n=N;        INC(2,-1) PUT(0, n >> (t & 0x0f) << ((t & 0xf0) >> 4)) break;
			case 0x21: /* INC2 */ t=T2;           SET(2, 0) PUT2(0, t + 1) break;
			case 0x01: /* INC  */ t=T;            SET(1, 0) PUT(0, t + 1); break;
			case 0x22: /* POP2 */                 SET(2,-2) break;
			case 0x02: /* POP  */                 SET(1,-1) break;
			case 0x23: /* NIP2 */ t=T2;           SET(2,-2) PUT2(0, t) break;
			case 0x03: /* NIP  */ t=T;            SET(1,-1) PUT(0, t) break;
			case 0x24: /* SWP2 */ t=T2;n=N2;      SET(4, 0) PUT2(2, t) PUT2(0, n) break;
			case 0x04: /* SWP  */ t=T;n=N;        SET(2, 0) PUT(0, n) PUT(1, t) break;
			case 0x25: /* ROT2 */ t=T2;n=N2;l=L2; SET(6, 0) PUT2(0, l) PUT2(2, t) PUT2(4, n) break;
			case 0x05: /* ROT  */ t=T;n=N;l=L;    SET(3, 0) PUT(0, l) PUT(1, t) PUT(2, n) break;
			case 0x26: /* DUP2 */ t=T2;           SET(2, 2) PUT2(0, t) PUT2(2, t) break;
			case 0x06: /* DUP  */ t=T;            SET(1, 1) PUT(0, t) PUT(1, t) break;
			case 0x27: /* OVR2 */ t=T2;n=N2;      SET(4, 2) PUT2(0, n) PUT2(2, t) PUT2(4, n) break;
			case 0x07: /* OVR  */ t=T;n=N;        SET(2, 1) PUT(0, n) PUT(1, t) PUT(2, n) break;
			case 0x28: /* EQU2 */ t=T2;n=N2;      SET(4,-3) PUT(0, n == t) break;
			case 0x08: /* EQU  */ t=T;n=N;        SET(2,-1) PUT(0, n == t) break;
			case 0x29: /* NEQ2 */ t=T2;n=N2;      SET(4,-3) PUT(0, n != t) break;
			case 0x09: /* NEQ  */ t=T;n=N;        SET(2,-1) PUT(0, n != t) break;
			case 0x2a: /* GTH2 */ t=T2;n=N2;      SET(4,-3) PUT(0, n > t) break;
			case 0x0a: /* GTH  */ t=T;n=N;        SET(2,-1) PUT(0, n > t) break;
			case 0x2b: /* LTH2 */ t=T2;n=N2;      SET(4,-3) PUT(0, n < t) break;
			case 0x0b: /* LTH  */ t=T;n=N;        SET(2,-1) PUT(0, n < t) break;
			case 0x2c: /* JMP2 */ t=T2;           SET(2,-2) pc = t; break;
			case 0x0c: /* JMP  */ t=T;            SET(1,-1) pc += (Sint8)t; break;
			case 0x2d: /* JCN2 */ t=T2;n=L;       SET(3,-3) if(n) pc = t; break;
			case 0x0d: /* JCN  */ t=T;n=N;        SET(2,-2) pc += !!n * (Sint8)t; break;
			case 0x2e: /* JSR2 */ t=T2;           SET(2,-2) PUSH2(u->rst, pc) pc = t; break;
			case 0x0e: /* JSR  */ t=T;            SET(1,-1) PUSH2(u->rst, pc) pc += (Sint8)t; break;
			case 0x2f: /* STH2 */ t=T2;           SET(2,-2) PUSH2((ins & 0x40 ? u->wst : u->rst), t) break;
			case 0x0f: /* STH  */ t=T;            SET(1,-1) PUSH((ins & 0x40 ? u->wst : u->rst), t) break;
			case 0x30: /* LDZ2 */ t=T;            SET(1, 1) PUT2(0, PEEK16(u->ram + t)) break;
			case 0x10: /* LDZ  */ t=T;            SET(1, 0) PUT(0, u->ram[t]) break;
			case 0x31: /* STZ2 */ t=T;n=H2;       SET(3,-3) POKE16(u->ram + t, n) break;
			case 0x11: /* STZ  */ t=T;n=N;        SET(2,-2) u->ram[t] = n; break;
			case 0x32: /* LDR2 */ t=T;            SET(1, 1) PUT2(0, PEEK16(u->ram + pc + (Sint8)t)) break;
			case 0x12: /* LDR  */ t=T;            SET(1, 0) PUT(0, u->ram[pc + (Sint8)t]) break;
			case 0x33: /* STR2 */ t=T;n=H2;       SET(3,-3) POKE16(u->ram + pc + (Sint8)t, n) break;
			case 0x13: /* STR  */ t=T;n=N;        SET(2,-2) u->ram[pc + (Sint8)t] = n; break;
			case 0x34: /* LDA2 */ t=T2;           SET(2, 0) PUT2(0, PEEK16(u->ram + t)) break;
			case 0x14: /* LDA  */ t=T2;           SET(2,-1) PUT(0, u->ram[t]) break;
			case 0x35: /* STA2 */ t=T2;n=N2;      SET(4,-4) POKE16(u->ram + t, n) break;
			case 0x15: /* STA  */ t=T2;n=L;       SET(3,-3) u->ram[t] = n; break;
			case 0x36: /* DEI2 */ t=T;            SET(1, 1) DEI(1, t) DEI(0, t + 1) break;
			case 0x16: /* DEI  */ t=T;            SET(1, 0) DEI(0, t) break;
			case 0x37: /* DEO2 */ t=T;n=N;l=L;    SET(3,-3) DEO(t, l) DEO(t + 1, n) break;
			case 0x17: /* DEO  */ t=T;n=N;        SET(2,-2) DEO(t, n) break;
			case 0x38: /* ADD2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n + t) break;
			case 0x18: /* ADD  */ t=T;n=N;        SET(2,-1) PUT(0, n + t) break;
			case 0x39: /* SUB2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n - t) break;
			case 0x19: /* SUB  */ t=T;n=N;        SET(2,-1) PUT(0, n - t) break;
			case 0x3a: /* MUL2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n * t) break;
			case 0x1a: /* MUL  */ t=T;n=N;        SET(2,-1) PUT(0, n * t) break;
			case 0x3b: /* DIV2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n / t) break;
			case 0x1b: /* DIV  */ t=T;n=N;        SET(2,-1) PUT(0, n / t) break;
			case 0x3c: /* AND2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n & t) break;
			case 0x1c: /* AND  */ t=T;n=N;        SET(2,-1) PUT(0, n & t) break;
			case 0x3d: /* ORA2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n | t) break;
			case 0x1d: /* ORA  */ t=T;n=N;        SET(2,-1) PUT(0, n | t) break;
			case 0x3e: /* EOR2 */ t=T2;n=N2;      SET(4,-2) PUT2(0, n ^ t) break;
			case 0x1e: /* EOR  */ t=T;n=N;        SET(2,-1) PUT(0, n ^ t) break;
			case 0x3f: /* SFT2 */ t=T;n=H2;       SET(3,-1) PUT2(0, n >> (t & 0x0f) << ((t & 0xf0) >> 4)) break;
			case 0x1f: /* SFT  */ t=T;n=N;        SET(2,-1) PUT(0, n >> (t & 0x0f) << ((t & 0xf0) >> 4)) break;
		}
	}		
}

int
uxn_boot(Uxn *u, Uint8 *ram, Dei *dei, Deo *deo)
uxn_boot(Uxn *u, Uint8 *ram)
{
	Uint32 i;
	char *cptr = (char *)u;


@@ 156,7 136,5 @@ uxn_boot(Uxn *u, Uint8 *ram, Dei *dei, Deo *deo)
	u->rst = (Stack *)(ram + 0xf0100);
	u->dev = (Uint8 *)(ram + 0xf0200);
	u->ram = ram;
	u->dei = dei;
	u->deo = deo;
	return 1;
}
}
\ No newline at end of file


M src/uxn.h => src/uxn.h +12 -6
@@ 32,12 32,18 @@ typedef struct Uxn {
	Uint8 *ram, *dev;
	Stack *wst, *rst;
	Uint8 (*dei)(struct Uxn *u, Uint8 addr);
	void (*deo)(struct Uxn *u, Uint8 addr, Uint8 value);
	void (*deo)(struct Uxn *u, Uint8 addr);
} Uxn;

typedef Uint8 Dei(Uxn *u, Uint8 addr);
typedef void Deo(Uxn *u, Uint8 addr, Uint8 value);
/* required functions */

int uxn_halt(Uxn *u, Uint8 instr, Uint8 err, Uint16 addr);
int uxn_boot(Uxn *u, Uint8 *ram, Dei *dei, Deo *deo);
int uxn_eval(Uxn *u, Uint16 pc);
\ No newline at end of file
extern Uint8 uxn_dei(Uxn *u, Uint8 addr);
extern void uxn_deo(Uxn *u, Uint8 addr);
extern int uxn_halt(Uxn *u, Uint8 instr, Uint8 err, Uint16 addr);
extern Uint16 dei_mask[];
extern Uint16 deo_mask[];

/* built-ins */

int uxn_boot(Uxn *u, Uint8 *ram);
int uxn_eval(Uxn *u, Uint16 pc);