int SIM_arbiter_init(SIM_power_arbiter_t *arb, int arbiter_model, int ff_model, u_int req_width, double length, SIM_power_array_info_t *info)
{
if ((arb->model = arbiter_model) && arbiter_model < ARBITER_MAX_MODEL) {
arb->req_width = req_width;
SIM_arbiter_clear_stat(arb);
/* redundant field */
arb->mask = HAMM_MASK(req_width);
switch (arbiter_model) {
case RR_ARBITER:
arb->e_chg_req = SIM_rr_arbiter_req_cap(length) / 2 * EnergyFactor;
/* two grant signals switch together, so no 1/2 */
arb->e_chg_grant = SIM_rr_arbiter_grant_cap() * EnergyFactor;
arb->e_chg_carry = SIM_rr_arbiter_carry_cap() / 2 * EnergyFactor;
arb->e_chg_carry_in = SIM_rr_arbiter_carry_in_cap() / 2 * EnergyFactor;
arb->e_chg_mint = 0;
if (SIM_fpfp_init(&arb->pri_ff, ff_model, SIM_rr_arbiter_pri_cap()))
return -1;
break;
case MATRIX_ARBITER:
arb->e_chg_req = SIM_matrix_arbiter_req_cap(req_width, length) / 2 * EnergyFactor;
/* 2 grant signals switch together, so no 1/2 */
arb->e_chg_grant = SIM_matrix_arbiter_grant_cap(req_width) * EnergyFactor;
arb->e_chg_mint = SIM_matrix_arbiter_int_cap() / 2 * EnergyFactor;
arb->e_chg_carry = arb->e_chg_carry_in = 0;
if (SIM_fpfp_init(&arb->pri_ff, ff_model, SIM_matrix_arbiter_pri_cap(req_width)))
return -1;
break;
case QUEUE_ARBITER:
arb->e_chg_req = arb->e_chg_grant = arb->e_chg_mint = 0;
arb->e_chg_carry = arb->e_chg_carry_in = 0;
return SIM_array_power_init(info, &arb->queue);
break;
default: /* some error handler */
break;
}
return 0;
}
else
return -1;
}
int SIM_arbiter_init(SIM_arbiter_t *arb, int arbiter_model, int ff_model, u_int req_width, double length, SIM_array_info_t *info)
{
if ((arb->model = arbiter_model) && arbiter_model < ARBITER_MAX_MODEL)
{
arb->req_width = req_width;
SIM_arbiter_clear_stat(arb);
/* redundant field */
arb->mask = HAMM_MASK(req_width);
double I_static;
switch (arbiter_model)
{
case RR_ARBITER:
arb->e_chg_req = SIM_rr_arbiter_req_cap(length) / 2 * EnergyFactor;
/* two grant signals switch together, so no 1/2 */
arb->e_chg_grant = SIM_rr_arbiter_grant_cap() * EnergyFactor;
arb->e_chg_carry = SIM_rr_arbiter_carry_cap() / 2 * EnergyFactor;
arb->e_chg_carry_in = SIM_rr_arbiter_carry_in_cap() / 2 * EnergyFactor;
arb->e_chg_mint = 0;
if (SIM_fpfp_init(&arb->pri_ff, ff_model, SIM_rr_arbiter_pri_cap()))
return -1;
/*arbiter static power */
I_static = 0;
/* NOR */
I_static += (6 * arb->req_width * ((WdecNORp*NOR2_TAB[0] + WdecNORn*(NOR2_TAB[1] + NOR2_TAB[2] + NOR2_TAB[3]))/4));
/* inverter */
I_static += 2 * arb->req_width * ((Wdecinvn*NMOS_TAB[0] + Wdecinvp*PMOS_TAB[0])/2);
/* DFF */
I_static += (arb->req_width * Wdff*DFF_TAB[0]);
arb->I_static = I_static;
break;
case MATRIX_ARBITER:
arb->e_chg_req = SIM_matrix_arbiter_req_cap(req_width, length) / 2 * EnergyFactor;
/* 2 grant signals switch together, so no 1/2 */
arb->e_chg_grant = SIM_matrix_arbiter_grant_cap(req_width) * EnergyFactor;
arb->e_chg_mint = SIM_matrix_arbiter_int_cap() / 2 * EnergyFactor;
arb->e_chg_carry = arb->e_chg_carry_in = 0;
if (SIM_fpfp_init(&arb->pri_ff, ff_model, SIM_matrix_arbiter_pri_cap(req_width)))
return -1;
/*arbiter static power */
I_static = 0;
/* NOR */
I_static += ((2 * arb->req_width - 1) * arb->req_width) * ((WdecNORp*NOR2_TAB[0] + WdecNORn*(NOR2_TAB[1] + NOR2_TAB[2] + NOR2_TAB[3]))/4);
/* inverter */
I_static += arb->req_width * ((Wdecinvn*NMOS_TAB[0] + Wdecinvp*PMOS_TAB[0])/2);
/* DFF */
I_static += (arb->req_width * (arb->req_width - 1) / 2) * (Wdff*DFF_TAB[0]);
arb->I_static = I_static;
break;
case QUEUE_ARBITER:
arb->e_chg_req = arb->e_chg_grant = arb->e_chg_mint = 0;
arb->e_chg_carry = arb->e_chg_carry_in = 0;
return SIM_array_power_init(info, &arb->queue);
break;
default:
printf ("error\n"); /* some error handler */
}
return 0;
}
else
return -1;
}
