| Line 31... |
Line 31... |
#include <stdarg.h>
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#include <stdarg.h>
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#include "branch_predict.h"
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#include "branch_predict.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "stats.h"
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#include "stats.h"
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#include "sim-config.h"
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/* Branch prediction buffer */
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/* Branch prediction buffer */
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/* Length of BPB */
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/* Length of BPB */
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#define BPB_LEN 64
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#define BPB_LEN 64
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| Line 59... |
Line 60... |
} way[BPB_WAYS];
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} way[BPB_WAYS];
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} bpb[BPB_LEN];
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} bpb[BPB_LEN];
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void bpb_info()
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void bpb_info()
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{
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{
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if (!config.bp.bpb_sim) {
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printf("BPB not simulated. Check -bpb option.\n");
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return;
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}
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printf("BPB %d bytes: ", BPB_LEN * BPB_WAYS * (BPB_PSTATES + BPB_USTATES) / 8);
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printf("BPB %d bytes: ", BPB_LEN * BPB_WAYS * (BPB_PSTATES + BPB_USTATES) / 8);
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printf("%d ways, %d sets, %d bits/prediction\n", BPB_WAYS, BPB_LEN, BPB_PSTATES + BPB_USTATES);
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printf("%d ways, %d sets, %d bits/prediction\n", BPB_WAYS, BPB_LEN, BPB_PSTATES + BPB_USTATES);
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}
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}
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/* First check if branch is already in the cache and if it is:
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/* First check if branch is already in the cache and if it is:
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Line 89... |
void bpb_update(unsigned long addr, int taken)
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void bpb_update(unsigned long addr, int taken)
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{
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{
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int entry, way = -1;
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int entry, way = -1;
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int i;
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int i;
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/* BPB simulation enabled/disabled. */
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if (!config.bp.bpb_sim)
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return;
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/* Calc entry. */
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/* Calc entry. */
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entry = addr % BPB_LEN;
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entry = addr % BPB_LEN;
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/* Scan all ways and try to find our addr. */
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/* Scan all ways and try to find our addr. */
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for (i = 0; i < BPB_WAYS; i++)
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for (i = 0; i < BPB_WAYS; i++)
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| Line 154... |
Line 164... |
} way[BTIC_WAYS];
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} way[BTIC_WAYS];
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} btic[BTIC_LEN];
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} btic[BTIC_LEN];
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void btic_info()
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void btic_info()
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{
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{
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if (!config.bp.btic_sim) {
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printf("BTIC not simulated. Check -btic option.\n");
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return;
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}
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printf("BTIC %d bytes: ", BTIC_LEN * BTIC_WAYS * (BTIC_USTATES + BTIC_BLOCKSIZE * 8) / 8);
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printf("BTIC %d bytes: ", BTIC_LEN * BTIC_WAYS * (BTIC_USTATES + BTIC_BLOCKSIZE * 8) / 8);
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printf("%d ways, %d sets, %d bits/target\n", BTIC_WAYS, BTIC_LEN, BTIC_USTATES + BTIC_BLOCKSIZE * 8);
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printf("%d ways, %d sets, %d bits/target\n", BTIC_WAYS, BTIC_LEN, BTIC_USTATES + BTIC_BLOCKSIZE * 8);
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}
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}
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/* First check if target addr is already in the cache and if it is:
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/* First check if target addr is already in the cache and if it is:
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Line 190... |
void btic_update(unsigned long targetaddr)
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void btic_update(unsigned long targetaddr)
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{
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{
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int entry, way = -1;
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int entry, way = -1;
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int i;
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int i;
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/* BTIC simulation enabled/disabled. */
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if (!config.bp.btic_sim)
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return;
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/* Calc entry. */
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/* Calc entry. */
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entry = targetaddr % BTIC_LEN;
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entry = targetaddr % BTIC_LEN;
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/* Scan all ways and try to find our addr. */
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/* Scan all ways and try to find our addr. */
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for (i = 0; i < BTIC_WAYS; i++)
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for (i = 0; i < BTIC_WAYS; i++)
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