register.h File Reference

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Functions
struct reg_t *	register_new ()
void	reg_create (struct pdp_11_t *, struct reg_t *)
void	reg_destroy (struct pdp_11_t *)

Function Documentation

reg_create()

void reg_create	(	struct pdp_11_t *	pdp,
		struct reg_t *	regist
	)

{
    regist->R0 = 0;
    regist->R1 = 0;
    regist->R2 = 0;
    regist->R3 = 0;
    regist->R4 = 0;
    regist->R5 = 0;
    regist->SP = 0;
    regist->PC = 0;
 
    pdp->R0 = &regist->R0;
    pdp->R1 = &regist->R1;
    pdp->R2 = &regist->R2;
    pdp->R3 = &regist->R3;
    pdp->R4 = &regist->R4;
    pdp->R5 = &regist->R5;
    pdp->SP = &regist->SP;
    pdp->PC = &regist->PC;
    return;
}

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reg_destroy()

void reg_destroy

(

struct pdp_11_t *

pdp

)

{
    *pdp->R0 = 0;
    *pdp->R1 = 0;
    *pdp->R2 = 0;
    *pdp->R3 = 0;
    *pdp->R4 = 0;
    *pdp->R5 = 0;
    *pdp->SP = 0;
    *pdp->PC = 0;
    pdp->R0  = NULL;
    pdp->R1  = NULL;
    pdp->R2  = NULL;
    pdp->R3  = NULL;
    pdp->R4  = NULL;
    pdp->R5  = NULL;
    pdp->SP  = NULL;
    pdp->PC  = NULL;
    return;
}

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register_new()

struct reg_t * register_new

(

)

{
    return (reg_t *) malloc(sizeof(reg_t));
}

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