wm: 5552

ref: 34b0870d5fce23038d4435b181cd3a6ba2b4d174
dir: /5551.h/

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#define MMAX ( 1 << 8 )

/* ops */
enum
{
	/* machine related */
	DIE, /* drop dead */
	OUT,

	/* logical */
	NOT,
	AND,
	NOR,
	XOR,

	/* arithmatic */
	SUB,
	ADD,

	/* shift */
	SHR,
	SHL,

	/* memory */
	PUT, /* stores something in reg */
	MOV, /* copy stuff from a reg to memory */
	LDM, /* load from memory into register */
	NTH, /* returns the Nth bit */
};

/* registers */
enum
{
	NUL,
	CARRY,
	OVERFLOW,
	NSIGN, /* not used, yet. */
	PARITY,
	MODE, /* int or bool */
	ON, /* false in case of fatal errors, can be used as a source of 1s */
};