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perfect6502
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bitmap size fix -> 10% faster

This commit is contained in:
Michael Steil 2010-10-06 02:13:38 +00:00
parent 1b22b7fec9
commit 4b95933e67
1 changed files with 11 additions and 8 deletions
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19
perfect6502.c
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@ -38,8 +38,8 @@ typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int BOOL;
#define NO 0
#define YES 1
#define NO 0
/************************************************************
*
@ -55,8 +55,8 @@ typedef unsigned int BOOL;
#include "nodenames.h"
/* the 6502 consists of this many nodes and transistors */
#define NODES 1725
#define TRANSISTORS 3510
#define NODES (sizeof(segdefs)/sizeof(*segdefs))
#define TRANSISTORS (sizeof(transdefs)/sizeof(*transdefs))
/************************************************************
*
@ -75,7 +75,7 @@ typedef uint16_t count_t;
*
************************************************************/
#if 1 /* on 64 bit CPUs */
#if 0 /* on 64 bit CPUs */
typedef unsigned long long bitmap_t;
#define BITMAP_SHIFT 6
#define BITMAP_MASK 63
@ -85,12 +85,15 @@ typedef unsigned int bitmap_t;
#define BITMAP_MASK 31
#endif
#define DECLARE_BITMAP(name, count) bitmap_t name[count/sizeof(bitmap_t)+1]
#define BITMAP_BITS_PER_WORD (sizeof(bitmap_t) * 8)
#define WORDS_FOR_BITS(a) (a/BITMAP_BITS_PER_WORD+1)
#define DECLARE_BITMAP(name, count) bitmap_t name[WORDS_FOR_BITS(count)]
static inline void
bitmap_clear(bitmap_t *bitmap, count_t count)
{
bzero(bitmap, count/sizeof(bitmap_t)+1);
bzero(bitmap, WORDS_FOR_BITS(count)*sizeof(bitmap_t));
}
static inline void
@ -774,14 +777,14 @@ setupNodesAndTransistors()
{
count_t i;
/* copy nodes into r/w data structure */
for (i = 0; i < sizeof(segdefs)/sizeof(*segdefs); i++) {
for (i = 0; i < NODES; i++) {
set_nodes_pullup(i, segdefs[i] == 1);
nodes_gatecount[i] = 0;
nodes_c1c2count[i] = 0;
}
/* copy transistors into r/w data structure */
count_t j = 0;
for (i = 0; i < sizeof(transdefs)/sizeof(*transdefs); i++) {
for (i = 0; i < TRANSISTORS; i++) {
nodenum_t gate = transdefs[i].gate;
nodenum_t c1 = transdefs[i].c1;
nodenum_t c2 = transdefs[i].c2;