58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
#include <stdio.h>
|
|
|
|
/*
|
|
Copyright (c) 2021 Devine Lu Linvega
|
|
|
|
Permission to use, copy, modify, and distribute this software for any
|
|
purpose with or without fee is hereby granted, provided that the above
|
|
copyright notice and this permission notice appear in all copies.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
WITH REGARD TO THIS SOFTWARE.
|
|
*/
|
|
|
|
typedef unsigned char Uint8;
|
|
typedef unsigned short Uint16;
|
|
|
|
#define FLAG_HALT 0x01
|
|
#define FLAG_SHORT 0x02
|
|
#define FLAG_SIGN 0x04
|
|
#define FLAG_COND 0x08
|
|
|
|
typedef struct {
|
|
Uint8 ptr;
|
|
Uint8 dat[256];
|
|
} Stack8;
|
|
|
|
typedef struct {
|
|
Uint8 ptr;
|
|
Uint16 dat[256];
|
|
} Stack16;
|
|
|
|
typedef struct {
|
|
Uint16 ptr;
|
|
Uint8 dat[65536];
|
|
} Memory;
|
|
|
|
typedef struct {
|
|
Uint16 r, w;
|
|
void (*rfn)(Uint8 *);
|
|
void (*wfn)(Uint8 *);
|
|
} Device;
|
|
|
|
typedef struct {
|
|
Uint8 literal, status, devices;
|
|
Uint16 counter, vreset, vframe, verror;
|
|
Stack8 wst;
|
|
Stack16 rst;
|
|
Memory ram;
|
|
Device dev[64];
|
|
} Uxn;
|
|
|
|
void setflag(Uint8 *status, char flag, int b);
|
|
int getflag(Uint8 *status, char flag);
|
|
int loaduxn(Uxn *c, char *filepath);
|
|
int bootuxn(Uxn *c);
|
|
int evaluxn(Uxn *u, Uint16 vec);
|
|
int portuxn(Uxn *u, Uint16 r, Uint16 w, void (*onread)(Uint8 *), void (*onwrite)(Uint8 *));
|