static int cmd_x(char* args){
//扫描内存
int n;
char expre[32];
if(args == NULL){
printf("please input arguments\ntype 'help' to get more informations\n");
return 0;
}
if(sscanf(args,"%d %s",&n,expre) != 2){
printf("wrong arguments\n");
return 0;
}
bool success = true;
hwaddr_t address = expr(expre, &success);
if(!success) return 0;
int i;
for(i = 0;i < n; ++i){
printf("%x:\t",address);
int j;
for(j = 0;j < 4; ++j){
uint8_t memory = dram_read(address, 8);
printf("%02x ",memory);
address += 1;
}
printf("\n");
}
return 0;
}
uint32_t cache_read_L2(hwaddr_t addr,size_t len){
uint32_t gi;
uint32_t t;
uint32_t off;
uint32_t count;
gi=(addr&0x1ffc0)>>6;
t=(addr&0xfffc0000)>>18;
off=addr&0x3f;
if(len==2&&off==(1<<BLOCK_OFFSET)-1)
return cache_read_L2(addr,1)+(cache_read_L2(addr+1,1)<<8);
else if(len==4&&off==(1<<BLOCK_OFFSET)-1)
return cache_read_L2(addr,1)+(cache_read_L2(addr+1,2)<<8)+(cache_read_L2(addr+3,1)<<24);
else if(len==4&&off==(1<<BLOCK_OFFSET)-2)
return cache_read_L2(addr,2)+(cache_read_L2(addr+2,2)<<16);
else if(len==4&&off==(1<<BLOCK_OFFSET)-3)
return cache_read_L2(addr,2)+(cache_read_L2(addr+2,1)<<16)+(cache_read_L2(addr+3,1)<<24);
else{
for(count=0;count<WAYS;count++){
if(cachemem[gi][count].valid==1&&cachemem[gi][count].tag==t){
if(len==1)
return cachemem[gi][count].data[off];
else if(len==2)
return cachemem[gi][count].data[off]+(cachemem[gi][count].data[off+1]<<8);
else
return cachemem[gi][count].data[off]+(cachemem[gi][count].data[off+1]<<8)+(cachemem[gi][count].data[off+2]<<16)+(cachemem[gi][count].data[off+3]<<24);
}
}
load_cache_L2(addr);
return dram_read(addr,len);
}
}
static int cmd_x(char *args)
{
int N = 0;
uint32_t tmpAddr;
char *tmpCharP = NULL;
tmpCharP = strtok(args, " ");
if(tmpCharP)
{
N = atoi(tmpCharP);
}
tmpCharP = tmpCharP + strlen(tmpCharP) + 1;
if(tmpCharP)
{
/*
if(strlen(tmpCharP) > 1 && tmpCharP[0] == '0' && tmpCharP[1] == 'x')
{
tmpAddr = 0;
int tmpPow = 1;
int i = strlen(tmpCharP) - 1;
for( ; i > 1; i--)
{
char c = tmpCharP[i];
if(c >= '0' && c <= '9')
c -= '0';
else if(c >= 'a' && c <= 'f')
c = c -'a' + 10;
else if(c >= 'A' && c <= 'F')
c = c - 'A' + 10;
else
{
printf("input Error!\n");
return 0;
}
tmpAddr += c * tmpPow;
tmpPow *= 16;
}
}
else
{
tmpAddr = atoi(tmpCharP);
}*/
bool success;
tmpAddr = expr(tmpCharP, &success);
printf("N:%d, addr:0x%x\n", N, tmpAddr);
int i = 0;
for(i = 0; i < N; i++)
{
printf("the %d line: ", i);
//printf("%x\n", hwaddr_read(tmpAddr + i * 4, 4));
printf("%x\n", dram_read(tmpAddr + i * 4, 4));
}
}
else
{
printf("Error: input error!!\n");
}
return 0;
}
void load_cache_L2(hwaddr_t addr){
uint32_t gi;
uint32_t t;
uint32_t count;
int i;
gi=(addr&0x1ffc0)>>6;
t=(addr&0xfffc0000)>>18;
for(count=0;count<WAYS;count++)
if(cachemem[gi][count].valid==0)
break;
if(count==WAYS&&cachemem[gi][count-1].valid==1)
count=rand()%WAYS;
cachemem[gi][count].tag=t;
cachemem[gi][count].valid=1;
cachemem[gi][count].dirty=0;
for(i=0;i<(1<<BLOCK_OFFSET);i++){
cachemem[gi][count].data[i]=dram_read((addr&0xffffffc0)+i,1);
}
}
