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#include "instruction.h"
#include "prog.h"
#include "platform.h"
#include <fstream>
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <cstring>
#include <list>
#include <cassert>
#include <sys/time.h>
using namespace std;
#define RETENTION_IN_MS 1000
#define NUM_BANKS 1
#define NUM_ROWS 32*1024
#define GET_TIME_INIT(num) struct timeval _timers[num]
#define GET_TIME_VAL(num) gettimeofday(&_timers[num], NULL)
#define TIME_VAL_TO_MS(num) (((double)_timers[num].tv_sec*1000.0) + ((double)_timers[num].tv_usec/1000.0))
// Need to hand-calculate below value?
// indicates how many rows we can write to
// before testing for retention
// TODO SET THIS TO A REASONABLE VALUE
#define MAX_ROW_PER_ITER 512
Inst all_nops()
{
return __pack_mininsts(SMC_NOP(), SMC_NOP(), SMC_NOP(), SMC_NOP());
}
int main(int argc, char*argv[])
{
Program program;
SoftMCPlatform platform;
int err;
if((err = platform.init()) != SOFTMC_SUCCESS){
cerr << "Could not initialize SoftMC Platform: " << err << endl;
}
char* buf = (char*) malloc(sizeof(char)*32*1024);
platform.reset_fpga();
// sleep(1);
uint64_t sleep_counter = (uint64_t) ((double) RETENTION_IN_MS * 1000 * 1000 // retention in ns
/ 6) ; // 6ns clock period
assert(sleep_counter < (uint64_t)4*1024*1024*1024 && "Retention time too large to fit into a 32 bit register");
printf("Retention time given as %d ms\n", RETENTION_IN_MS);
printf("Will sleep for %ld cycles\n", sleep_counter*6);
program.add_inst(SMC_LI(8, 0)); // CASR
program.add_inst(SMC_LI(1, 1)); // BASR
program.add_inst(SMC_LI(1, 2)); // RASR
program.add_inst(SMC_LI(NUM_ROWS, 8)); // NUM_ROWS
program.add_inst(SMC_LI(NUM_BANKS, 11));
// To fill wide-reg with data
program.add_inst(SMC_LI(0xffffffff, 7));
for(int i = 0 ; i < 16 ; i++)
program.add_inst(SMC_LDWD(7,i));
program.add_inst(SMC_LI(0, 5)); // BAR
program.add_label("BANK_BEGIN");
program.add_inst(SMC_LI(MAX_ROW_PER_ITER,7));
program.add_inst(SMC_LI(0, 4)); // CAR
program.add_inst(SMC_LI(0, 6)); // RAR
program.add_label("WRITE");
// PRE & wait for tRP
program.add_inst(__pack_mininsts(
SMC_PRE(5, 0, 0),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(all_nops());
// ACT & wait for tRCD
program.add_inst(__pack_mininsts(
SMC_ACT(5, 0, 6, 1),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(all_nops());
// Write to a whole row
for(int i = 0 ; i < 128 ; i++){
program.add_inst(__pack_mininsts(
SMC_WRITE(5, 0, 4, 1, 0, 0),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_inst(all_nops());
}
// Wait for t(write-precharge)
// & precharge the open bank
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(__pack_mininsts(
SMC_PRE(5, 0, 0),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_branch(program.BR_TYPE::BL, 6, 7, "WRITE");
// implement "sleep" as a counter
//program.add_label("SLEEP");
//program.add_inst(SMC_LI(0, 9));
//program.add_inst(SMC_LI(sleep_counter/7, 10));
//program.add_label("SLEEP_INNER");
//program.add_inst(SMC_ADDI(9,1,9));
//program.add_branch(program.BR_TYPE::BL, 9, 10, "SLEEP_INNER");
program.add_inst(SMC_SLEEP(sleep_counter));
// decrement RAR to read from newly written rows
program.add_inst(SMC_SUBI(6, MAX_ROW_PER_ITER, 6));
program.add_label("READ");
// PRE & wait for tRP
program.add_inst(__pack_mininsts(
SMC_PRE(5, 0, 0),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(all_nops());
// ACT & wait for tRCD
program.add_inst(__pack_mininsts(
SMC_ACT(5, 0, 6, 1),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(all_nops());
// Read from a whole row
for(int i = 0 ; i < 128 ; i++){
program.add_inst(__pack_mininsts(
SMC_READ(5, 0, 4, 1, 0, 0),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_inst(all_nops());
}
// Wait for t(read-precharge)
// & precharge the open bank
program.add_inst(all_nops());
program.add_inst(all_nops());
program.add_inst(__pack_mininsts(
SMC_PRE(5, 0, 0),
SMC_NOP(), SMC_NOP(), SMC_NOP()
));
program.add_branch(program.BR_TYPE::BEQ, 6, 8, "INC_BANK");
program.add_branch(program.BR_TYPE::BL, 6, 7, "READ");
program.add_inst(SMC_ADDI(7, MAX_ROW_PER_ITER, 7));
program.add_branch(program.BR_TYPE::JUMP, 0, 0, "WRITE");
program.add_label("INC_BANK");
program.add_inst(SMC_ADDI(5,1,5));
program.add_branch(program.BR_TYPE::BEQ, 5, 11, "END");
program.add_branch(program.BR_TYPE::JUMP,0,0,"BANK_BEGIN");
program.add_label("END");
program.add_inst(SMC_END());
platform.execute(program);
uint8_t pattern = 0xff;
uint64_t r_count = 0;
ofstream failures_file;
failures_file.open(std::string(argv[2]), ofstream::binary);
while(1)
{
platform.receiveData(buf,8*1024);
for(int j = 0 ; j < 8*1024 ; j++)
failures_file << (buf[j] ^ pattern);
r_count++;
if(r_count % (NUM_ROWS) == 0)
printf("Bank %ld complete\n", r_count/(NUM_ROWS));
if(r_count == NUM_BANKS*NUM_ROWS)
break;
printf("\rRead: %ld",r_count);
fflush(stdout);
}
printf("Test complete!\n");
}
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