OpenCores
URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

Compare Revisions

  • This comparison shows the changes necessary to convert path 
    /zipcpu
    from Rev 154 to Rev 155
    ↔ Reverse comparison
  •

Rev 154 → Rev 155

/trunk/bench/cpp/zippy_tb.cpp
38,6 → 38,9
#include <time.h>
#include <unistd.h>
#include <poll.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
 
#include <ctype.h>
#include <ncurses.h>
55,6 → 58,9
 
#define CMD_REG 0
#define CMD_DATA 1
#define CMD_GIE (1<<13)
#define CMD_SLEEP (1<<12)
#define CMD_CLEAR_CACHE (1<<11)
#define CMD_HALT (1<<10)
#define CMD_STALL (1<<9)
#define CMD_INT (1<<7)
67,6 → 73,9
 
#define MAXERR 10000
 
#define LGRAMLEN 20
#define RAMBASE 0x100000
#define MEMWORDS (1<<LGRAMLEN)
 
class SPARSEMEM {
public:
97,18 → 106,18
unsigned long m_mem_size;
MEMSIM m_mem;
// QSPIFLASHSIM m_flash;
FILE *dbg_fp, *m_profile_fp;
FILE *m_dbgfp, *m_profile_fp;
bool dbg_flag, bomb, m_show_user_timers;
int m_cursor;
unsigned long m_last_instruction_tickcount;
ZIPSTATE m_state;
 
ZIPPY_TB(void) : m_mem_size(1<<20), m_mem(m_mem_size) {
ZIPPY_TB(void) : m_mem_size(MEMWORDS), m_mem(m_mem_size) {
if (false) {
dbg_fp = fopen("dbg.txt", "w");
m_dbgfp = fopen("dbg.txt", "w");
dbg_flag = true;
} else {
dbg_fp = NULL;
m_dbgfp = NULL;
dbg_flag = false;
}
bomb = false;
124,8 → 133,8
}
 
~ZIPPY_TB(void) {
if (dbg_fp)
fclose(dbg_fp);
if (m_dbgfp)
fclose(m_dbgfp);
if (m_profile_fp)
fclose(m_profile_fp);
}
154,7 → 163,7
for(int i=0; i<20; i++)
m_state.m_p[i] = cmd_read(i+32);
 
m_state.m_gie = (m_state.m_sR[14] & 0x020);
m_state.m_gie = wb_read(CMD_REG) & CMD_GIE;
m_state.m_pc = (m_state.m_gie) ? (m_state.m_uR[15]):(m_state.m_sR[15]);
m_state.m_sp = (m_state.m_gie) ? (m_state.m_uR[13]):(m_state.m_sR[13]);
 
203,7 → 212,7
m_state.m_uR[14] = (m_state.m_uR[14]&0xffffe000)|m_core->v__DOT__thecpu__DOT__w_uflags;
m_state.m_uR[15] = m_core->v__DOT__thecpu__DOT__upc;
 
m_state.m_gie = (m_state.m_sR[14] & 0x020);
m_state.m_gie = m_core->v__DOT__thecpu__DOT__gie;
m_state.m_pc = (m_state.m_gie) ? (m_state.m_uR[15]):(m_state.m_sR[15]);
m_state.m_sp = (m_state.m_gie) ? (m_state.m_uR[13]):(m_state.m_sR[13]);
 
248,6 → 257,17
mvprintw(y, x, " %s: 0x%08x ", n, v);
}
 
void dbgreg(FILE *fp, int id, const char *n, unsigned int v) {
/*
if ((id == 14)||(id == 14+16)) {
//char buf[64];
//fprintf(fp, " %s:",
fprintf(fp, " %s: 0x%08x ", n, v);
} else
*/
fprintf(fp, " %s: 0x%08x ", n, v);
}
 
void showreg(int y, int x, const char *n, int r, bool c) {
if (r < 16)
dispreg(y, x, n, m_state.m_sR[r], c);
307,30 → 327,30
const bool phase, const bool illegal) {
char la[80], lb[80];
 
if (!dbg_fp)
if (!m_dbgfp)
return;
 
if (ce)
fprintf(dbg_fp, "%s Ck ", lbl);
fprintf(m_dbgfp, "%s Ck ", lbl);
else
fprintf(dbg_fp, "%s ", lbl);
fprintf(m_dbgfp, "%s ", lbl);
if (stall)
fprintf(dbg_fp, "Stl ");
fprintf(m_dbgfp, "Stl ");
else
fprintf(dbg_fp, " ");
fprintf(dbg_fp, "0x%08x: ", pc);
fprintf(m_dbgfp, " ");
fprintf(m_dbgfp, "0x%08x: ", pc);
 
if (valid) {
zipi_to_string(m_mem[pc], la, lb);
if ((phase)||((m_mem[pc]&0x80000000)==0))
fprintf(dbg_fp, " %-24s", la);
fprintf(m_dbgfp, " %-24s", la);
else
fprintf(dbg_fp, " %-24s", lb);
fprintf(m_dbgfp, " %-24s", lb);
} else {
fprintf(dbg_fp, " (0x%08x)", m_mem[pc]);
fprintf(m_dbgfp, " (0x%08x)", m_mem[pc]);
} if (illegal)
fprintf(dbg_fp, " (Illegal)");
fprintf(dbg_fp, "\n");
fprintf(m_dbgfp, " (Illegal)");
fprintf(m_dbgfp, "\n");
}
 
void show_state(void) {
785,9 → 805,9
 
unsigned int cmd_read(unsigned int a) {
int errcount = 0;
if (dbg_fp) {
if (m_dbgfp) {
dbg_flag= true;
fprintf(dbg_fp, "CMD-READ(%d)\n", a);
fprintf(m_dbgfp, "CMD-READ(%d)\n", a);
}
wb_write(CMD_REG, CMD_HALT|(a&0x3f));
while(((wb_read(CMD_REG) & CMD_STALL) == 0)&&(errcount<MAXERR))
819,7 → 839,7
unsigned int v = wb_read(CMD_DATA);
 
if (dbg_flag)
fprintf(dbg_fp, "CMD-READ(%d) = 0x%08x\n", a, v);
fprintf(m_dbgfp, "CMD-READ(%d) = 0x%08x\n", a, v);
dbg_flag = false;
return v;
}
833,7 → 853,7
errcount++;
assert(errcount < MAXERR);
if (dbg_flag)
fprintf(dbg_fp, "CMD-WRITE(%d) <= 0x%08x\n", a, v);
fprintf(m_dbgfp, "CMD-WRITE(%d) <= 0x%08x\n", a, v);
wb_write(CMD_DATA, v);
}
 
895,7 → 915,7
ln++;
ln++;
unsigned int cc = m_state.m_sR[14];
if (dbg_fp) fprintf(dbg_fp, "CC = %08x, gie = %d\n", cc,
if (m_dbgfp) fprintf(m_dbgfp, "CC = %08x, gie = %d\n", cc,
m_core->v__DOT__thecpu__DOT__gie);
gie = (cc & 0x020);
if (gie)
1094,8 → 1114,8
if ((m_core->o_wb_cyc)&&(m_core->o_wb_stb)&&(!stb))
m_core->i_wb_ack = 1;
 
if ((dbg_flag)&&(dbg_fp)) {
fprintf(dbg_fp, "DBG %s %s %s @0x%08x/%d[0x%08x] %s %s [0x%08x] %s %s %s%s%s%s%s%s%s%s%s\n",
if ((dbg_flag)&&(m_dbgfp)) {
fprintf(m_dbgfp, "DBG %s %s %s @0x%08x/%d[0x%08x] %s %s [0x%08x] %s %s %s%s%s%s%s%s%s%s%s\n",
(m_core->i_dbg_cyc)?"CYC":" ",
(m_core->i_dbg_stb)?"STB":
((m_core->v__DOT__dbg_stb)?"DBG":" "),
1116,7 → 1136,7
(m_core->v__DOT__thecpu__DOT__alu_ce)?"ALCE ":"",
(m_core->v__DOT__thecpu__DOT__alu_valid)?"ALUV ":"",
(m_core->v__DOT__thecpu__DOT__mem_valid)?"MEMV ":"");
fprintf(dbg_fp, " SYS %s %s %s @0x%08x/%d[0x%08x] %s [0x%08x]\n",
fprintf(m_dbgfp, " SYS %s %s %s @0x%08x/%d[0x%08x] %s [0x%08x]\n",
(m_core->v__DOT__sys_cyc)?"CYC":" ",
(m_core->v__DOT__sys_stb)?"STB":" ",
(m_core->v__DOT__sys_we)?"WE":" ",
1127,8 → 1147,8
(m_core->v__DOT__wb_data));
}
 
if (dbg_fp)
fprintf(dbg_fp, "CEs %d/0x%08x,%d/0x%08x DCD: ->%02x, OP: ->%02x, ALU: halt=%d,%d ce=%d, valid=%d, wr=%d Reg=%02x, IPC=%08x, UPC=%08x\n",
if (m_dbgfp)
fprintf(m_dbgfp, "CEs %d/0x%08x,%d/0x%08x DCD: ->%02x, OP: ->%02x, ALU: halt=%d,%d ce=%d, valid=%d, wr=%d Reg=%02x, IPC=%08x, UPC=%08x\n",
dcd_ce(),
m_core->v__DOT__thecpu__DOT__dcd_pc,
op_ce(),
1144,12 → 1164,12
m_core->v__DOT__thecpu__DOT__ipc,
m_core->v__DOT__thecpu__DOT__upc);
if ((dbg_fp)&&(!gie)&&(m_core->v__DOT__thecpu__DOT__w_release_from_interrupt)) {
fprintf(dbg_fp, "RELEASE: int=%d, %d/%02x[%08x] ?/%02x[0x%08x], ce=%d %d,%d,%d\n",
if ((m_dbgfp)&&(!gie)&&(m_core->v__DOT__thecpu__DOT__w_release_from_interrupt)) {
fprintf(m_dbgfp, "RELEASE: int=%d, %d/%02x[%08x] ?/%02x[0x%08x], ce=%d %d,%d,%d\n",
m_core->v__DOT__genblk9__DOT__pic__DOT__r_interrupt,
m_core->v__DOT__thecpu__DOT__wr_reg_ce,
m_core->v__DOT__thecpu__DOT__wr_reg_id,
m_core->v__DOT__thecpu__DOT__wr_reg_vl,
m_core->v__DOT__thecpu__DOT__wr_spreg_vl,
m_core->v__DOT__cmd_addr,
m_core->v__DOT__dbg_idata,
m_core->v__DOT__thecpu__DOT__master_ce,
1156,11 → 1176,11
m_core->v__DOT__thecpu__DOT__alu_wr,
m_core->v__DOT__thecpu__DOT__alu_valid,
m_core->v__DOT__thecpu__DOT__mem_valid);
} else if ((dbg_fp)&&(gie)&&(m_core->v__DOT__thecpu__DOT__w_switch_to_interrupt)) {
fprintf(dbg_fp, "SWITCH: %d/%02x[%08x] ?/%02x[0x%08x], ce=%d %d,%d,%d, F%02x,%02x\n",
} else if ((m_dbgfp)&&(gie)&&(m_core->v__DOT__thecpu__DOT__w_switch_to_interrupt)) {
fprintf(m_dbgfp, "SWITCH: %d/%02x[%08x] ?/%02x[0x%08x], ce=%d %d,%d,%d, F%02x,%02x\n",
m_core->v__DOT__thecpu__DOT__wr_reg_ce,
m_core->v__DOT__thecpu__DOT__wr_reg_id,
m_core->v__DOT__thecpu__DOT__wr_reg_vl,
m_core->v__DOT__thecpu__DOT__wr_spreg_vl,
m_core->v__DOT__cmd_addr,
m_core->v__DOT__dbg_idata,
m_core->v__DOT__thecpu__DOT__master_ce,
1169,16 → 1189,16
m_core->v__DOT__thecpu__DOT__mem_valid,
m_core->v__DOT__thecpu__DOT__w_iflags,
m_core->v__DOT__thecpu__DOT__w_uflags);
fprintf(dbg_fp, "\tbrk=%s %d,%d\n",
fprintf(m_dbgfp, "\tbrk=%s %d,%d\n",
(m_core->v__DOT__thecpu__DOT__master_ce)?"CE":" ",
m_core->v__DOT__thecpu__DOT__break_en,
m_core->v__DOT__thecpu__DOT__op_break);
} else if ((dbg_fp)&&
} else if ((m_dbgfp)&&
((m_core->v__DOT__thecpu__DOT__op_break)
||(m_core->v__DOT__thecpu__DOT__r_alu_illegal)
||(m_core->v__DOT__thecpu__DOT__dcd_break))) {
fprintf(dbg_fp, "NOT SWITCHING TO GIE (gie = %d)\n", gie);
fprintf(dbg_fp, "\tbrk=%s breaken=%d,dcdbreak=%d,opbreak=%d,alu_illegal=%d\n",
fprintf(m_dbgfp, "NOT SWITCHING TO GIE (gie = %d)\n", gie);
fprintf(m_dbgfp, "\tbrk=%s breaken=%d,dcdbreak=%d,opbreak=%d,alu_illegal=%d\n",
(m_core->v__DOT__thecpu__DOT__master_ce)?"CE":" ",
m_core->v__DOT__thecpu__DOT__break_en,
m_core->v__DOT__thecpu__DOT__dcd_break,
1186,15 → 1206,15
m_core->v__DOT__thecpu__DOT__r_alu_illegal);
}
 
if (dbg_fp) {
if (m_dbgfp) {
if(m_core->v__DOT__thecpu__DOT__clear_pipeline)
fprintf(dbg_fp, "\tClear Pipeline\n");
fprintf(m_dbgfp, "\tClear Pipeline\n");
if(m_core->v__DOT__thecpu__DOT__new_pc)
fprintf(dbg_fp, "\tNew PC\n");
fprintf(m_dbgfp, "\tNew PC\n");
}
 
if (dbg_fp)
fprintf(dbg_fp, "----------- TICK ----------\n");
if (m_dbgfp)
fprintf(m_dbgfp, "----------- TICK ----------\n");
if (false) {
m_core->i_clk = 1;
m_mem(m_core->i_clk, m_core->o_wb_cyc, m_core->o_wb_stb, m_core->o_wb_we,
1218,16 → 1238,16
m_core->i_wb_err = 0;
TESTB<Vzipsystem>::tick();
}
if ((dbg_fp)&&(gie != m_core->v__DOT__thecpu__DOT__gie)) {
fprintf(dbg_fp, "SWITCH FROM %s to %s: sPC = 0x%08x uPC = 0x%08x pf_pc = 0x%08x\n",
if ((m_dbgfp)&&(gie != m_core->v__DOT__thecpu__DOT__gie)) {
fprintf(m_dbgfp, "SWITCH FROM %s to %s: sPC = 0x%08x uPC = 0x%08x pf_pc = 0x%08x\n",
(gie)?"User":"Supervisor",
(gie)?"Supervisor":"User",
m_core->v__DOT__thecpu__DOT__ipc,
m_core->v__DOT__thecpu__DOT__upc,
m_core->v__DOT__thecpu__DOT__pf_pc);
} if (dbg_fp) {
} if (m_dbgfp) {
#ifdef OPT_TRADITIONAL_PFCACHE
fprintf(dbg_fp, "PFCACHE %s(%08x,%08x%s),%08x - %08x %s%s%s\n",
fprintf(m_dbgfp, "PFCACHE %s(%08x,%08x%s),%08x - %08x %s%s%s\n",
(m_core->v__DOT__thecpu__DOT__new_pc)?"N":" ",
m_core->v__DOT__thecpu__DOT__pf_pc,
m_core->v__DOT__thecpu__DOT__instruction_decoder__DOT__genblk3__DOT__r_branch_pc,
1301,6 → 1321,27
 
}
 
if ((m_dbgfp)&&((m_core->v__DOT__thecpu__DOT__div_valid)
||(m_core->v__DOT__thecpu__DOT__div_ce)
||(m_core->v__DOT__thecpu__DOT__div_busy)
)) {
fprintf(m_dbgfp, "DIV: %s %s %s %s[%2x] GP:%08x/SP:%08x %s:0x%08x\n",
(m_core->v__DOT__thecpu__DOT__div_ce)?"CE":" ",
(m_core->v__DOT__thecpu__DOT__div_busy)?"BUSY":" ",
(m_core->v__DOT__thecpu__DOT__div_valid)?"VALID":" ",
(m_core->v__DOT__thecpu__DOT__wr_reg_ce)?"REG-CE":" ",
m_core->v__DOT__thecpu__DOT__wr_reg_id,
m_core->v__DOT__thecpu__DOT__wr_gpreg_vl,
m_core->v__DOT__thecpu__DOT__wr_spreg_vl,
(m_core->v__DOT__thecpu__DOT__alu_pc_valid)?"PCV":" ",
m_core->v__DOT__thecpu__DOT__alu_pc);
 
fprintf(m_dbgfp, "ALU-PC: %08x %s %s\n",
m_core->v__DOT__thecpu__DOT__alu_pc,
(m_core->v__DOT__thecpu__DOT__r_alu_pc_valid)?"VALID":"",
(m_core->v__DOT__thecpu__DOT__alu_gie)?"ALU-GIE":"");
}
 
if ((m_core->v__DOT__thecpu__DOT__alu_pc_valid)
&&(!m_core->v__DOT__thecpu__DOT__clear_pipeline)) {
unsigned long iticks = m_tickcount - m_last_instruction_tickcount;
1515,6 → 1556,54
}
 
int cursor(void) { return m_cursor; }
 
void jump_to(ZIPI address) {
m_core->v__DOT__thecpu__DOT__pf_pc = address;
m_core->v__DOT__thecpu__DOT__clear_pipeline = 1;
m_core->v__DOT__thecpu__DOT__new_pc = 1;
}
 
void dump_state(void) {
if (m_dbgfp)
dump_state(m_dbgfp);
}
 
void dump_state(FILE *fp) {
if (!fp)
return;
fprintf(fp, "FINAL STATE: %s\n",
(m_state.m_gie)?"GIE(User-Mode)":"Supervisor-mode");
fprintf(fp, "Supervisor Registers\n");
for(int i=0; i<16; i++) {
char str[16];
if (i==13)
sprintf(str, "sSP");
else if (i==14)
sprintf(str, "sCC");
else if (i==15)
sprintf(str, "sPC");
else // if (i<=12)
sprintf(str, "s-%2d", i);
dbgreg(fp, i, str, m_state.m_sR[i]);
if ((i&3)==3)
fprintf(fp, "\n");
}
fprintf(fp, "User Registers\n");
for(int i=0; i<16; i++) {
char str[16];
if (i==13)
sprintf(str, "uSP");
else if (i==14)
sprintf(str, "uCC");
else if (i==15)
sprintf(str, "uPC");
else // if (i<=12)
sprintf(str, "u-%2d", i);
dbgreg(fp, i, str, m_state.m_uR[i]);
if ((i&3)==3)
fprintf(fp, "\n");
}
}
};
 
void get_value(ZIPPY_TB *tb) {
1638,6 → 1727,283
}
}
 
 
bool iself(const char *fname) {
FILE *fp;
bool ret = true;
fp = fopen(fname, "rb");
 
if (!fp) return false;
if (0x7f != fgetc(fp)) ret = false;
if ('E' != fgetc(fp)) ret = false;
if ('L' != fgetc(fp)) ret = false;
if ('F' != fgetc(fp)) ret = false;
fclose(fp);
return ret;
}
 
long fgetwords(FILE *fp) {
// Return the number of words in the current file, and return the
// file as though it had never been adjusted
long fpos, flen;
fpos = ftell(fp);
if (0 != fseek(fp, 0l, SEEK_END)) {
fprintf(stderr, "ERR: Could not determine file size\n");
perror("O/S Err:");
exit(-2);
} flen = ftell(fp);
if (0 != fseek(fp, fpos, SEEK_SET)) {
fprintf(stderr, "ERR: Could not seek on file\n");
perror("O/S Err:");
exit(-2);
} flen /= sizeof(ZIPI);
return flen;
}
 
class SECTION {
public:
unsigned m_start, m_len;
ZIPI m_data[1];
};
 
SECTION **singlesection(int nwords) {
fprintf(stderr, "NWORDS = %d\n", nwords);
size_t sz = (2*(sizeof(SECTION)+sizeof(SECTION *))
+(nwords-1)*(sizeof(ZIPI)));
char *d = (char *)malloc(sz);
SECTION **r = (SECTION **)d;
memset(r, 0, sz);
r[0] = (SECTION *)(&d[2*sizeof(SECTION *)]);
r[0]->m_len = nwords;
r[1] = (SECTION *)(&r[0]->m_data[r[0]->m_len]);
r[0]->m_start = 0;
r[1]->m_start = 0;
r[1]->m_len = 0;
 
return r;
}
 
SECTION **rawsection(const char *fname) {
SECTION **secpp, *secp;
unsigned num_words;
FILE *fp;
int nr;
 
fp = fopen(fname, "r");
if (fp == NULL) {
fprintf(stderr, "Could not open: %s\n", fname);
exit(-1);
}
 
if ((num_words=fgetwords(fp)) > MEMWORDS) {
fprintf(stderr, "File overruns Block RAM\n");
exit(-1);
}
secpp = singlesection(num_words);
secp = secpp[0];
secp->m_start = RAMBASE;
secp->m_len = num_words;
nr= fread(secp->m_data, sizeof(ZIPI), num_words, fp);
if (nr != (int)num_words) {
fprintf(stderr, "Could not read entire file\n");
perror("O/S Err:");
exit(-2);
} assert(secpp[1]->m_len == 0);
 
return secpp;
}
 
unsigned byteswap(unsigned n) {
unsigned r;
 
r = (n&0x0ff); n>>= 8;
r = (r<<8) | (n&0x0ff); n>>= 8;
r = (r<<8) | (n&0x0ff); n>>= 8;
r = (r<<8) | (n&0x0ff); n>>= 8;
 
return r;
}
 
#include <libelf.h>
#include <gelf.h>
 
void elfread(const char *fname, unsigned &entry, SECTION **&sections) {
Elf *e;
int fd, i;
size_t n;
char *id;
Elf_Kind ek;
GElf_Ehdr ehdr;
GElf_Phdr phdr;
const bool dbg = false;
 
if (elf_version(EV_CURRENT) == EV_NONE) {
fprintf(stderr, "ELF library initialization err, %s\n", elf_errmsg(-1));
perror("O/S Err:");
exit(EXIT_FAILURE);
} if ((fd = open(fname, O_RDONLY, 0)) < 0) {
fprintf(stderr, "Could not open %s\n", fname);
perror("O/S Err:");
exit(EXIT_FAILURE);
} if ((e = elf_begin(fd, ELF_C_READ, NULL))==NULL) {
fprintf(stderr, "Could not run elf_begin, %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
ek = elf_kind(e);
if (ek == ELF_K_ELF) {
; // This is the kind of file we should expect
} else if (ek == ELF_K_AR) {
fprintf(stderr, "Cannot run an archive!\n");
exit(EXIT_FAILURE);
} else if (ek == ELF_K_NONE) {
;
} else {
fprintf(stderr, "Unexpected ELF file kind!\n");
exit(EXIT_FAILURE);
}
 
if (gelf_getehdr(e, &ehdr) == NULL) {
fprintf(stderr, "getehdr() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
} if ((i=gelf_getclass(e)) == ELFCLASSNONE) {
fprintf(stderr, "getclass() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
} if ((id = elf_getident(e, NULL)) == NULL) {
fprintf(stderr, "getident() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
} if (i != ELFCLASS32) {
fprintf(stderr, "This is a 64-bit ELF file, ZipCPU ELF files are all 32-bit\n");
exit(EXIT_FAILURE);
}
 
if (dbg) {
printf(" %-20s 0x%jx\n", "e_type", (uintmax_t)ehdr.e_type);
printf(" %-20s 0x%jx\n", "e_machine", (uintmax_t)ehdr.e_machine);
printf(" %-20s 0x%jx\n", "e_version", (uintmax_t)ehdr.e_version);
printf(" %-20s 0x%jx\n", "e_entry", (uintmax_t)ehdr.e_entry);
printf(" %-20s 0x%jx\n", "e_phoff", (uintmax_t)ehdr.e_phoff);
printf(" %-20s 0x%jx\n", "e_shoff", (uintmax_t)ehdr.e_shoff);
printf(" %-20s 0x%jx\n", "e_flags", (uintmax_t)ehdr.e_flags);
printf(" %-20s 0x%jx\n", "e_ehsize", (uintmax_t)ehdr.e_ehsize);
printf(" %-20s 0x%jx\n", "e_phentsize", (uintmax_t)ehdr.e_phentsize);
printf(" %-20s 0x%jx\n", "e_shentsize", (uintmax_t)ehdr.e_shentsize);
printf("\n");
}
 
 
// Check whether or not this is an ELF file for the ZipCPU ...
if (ehdr.e_machine != 0x0dadd) {
fprintf(stderr, "This is not a ZipCPU ELF file\n");
exit(EXIT_FAILURE);
}
 
// Get our entry address
entry = ehdr.e_entry;
 
 
// Now, let's go look at the program header
if (elf_getphdrnum(e, &n) != 0) {
fprintf(stderr, "elf_getphdrnum() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
unsigned total_octets = 0, current_offset=0, current_section=0;
for(i=0; i<(int)n; i++) {
total_octets += sizeof(SECTION *)+sizeof(SECTION);
 
if (gelf_getphdr(e, i, &phdr) != &phdr) {
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
if (dbg) {
printf(" %-20s 0x%x\n", "p_type", phdr.p_type);
printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
 
if (phdr.p_flags & PF_X) printf(" Execute");
if (phdr.p_flags & PF_R) printf(" Read");
if (phdr.p_flags & PF_W) printf(" Write");
printf("]\n");
printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
}
 
total_octets += phdr.p_memsz;
}
 
char *d = (char *)malloc(total_octets + sizeof(SECTION)+sizeof(SECTION *));
memset(d, 0, total_octets);
 
SECTION **r = sections = (SECTION **)d;
current_offset = (n+1)*sizeof(SECTION *);
current_section = 0;
 
for(i=0; i<(int)n; i++) {
r[i] = (SECTION *)(&d[current_offset]);
 
if (gelf_getphdr(e, i, &phdr) != &phdr) {
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
if (dbg) {
printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
 
if (phdr.p_flags & PF_X) printf(" Execute");
if (phdr.p_flags & PF_R) printf(" Read");
if (phdr.p_flags & PF_W) printf(" Write");
printf("]\n");
 
printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
}
 
current_section++;
 
r[i]->m_start = phdr.p_vaddr;
r[i]->m_len = phdr.p_filesz/ sizeof(ZIPI);
 
current_offset += phdr.p_memsz + sizeof(SECTION);
 
// Now, let's read in our section ...
if (lseek(fd, phdr.p_offset, SEEK_SET) < 0) {
fprintf(stderr, "Could not seek to file position %08lx\n", phdr.p_offset);
perror("O/S Err:");
exit(EXIT_FAILURE);
} if (phdr.p_filesz > phdr.p_memsz)
phdr.p_filesz = 0;
if (read(fd, r[i]->m_data, phdr.p_filesz) != (int)phdr.p_filesz) {
fprintf(stderr, "Didnt read entire section\n");
perror("O/S Err:");
exit(EXIT_FAILURE);
}
 
// Next, we need to byte swap it from big to little endian
for(unsigned j=0; j<r[i]->m_len; j++)
r[i]->m_data[j] = byteswap(r[i]->m_data[j]);
 
if (dbg) for(unsigned j=0; j<r[i]->m_len; j++)
fprintf(stderr, "ADR[%04x] = %08x\n", r[i]->m_start+j,
r[i]->m_data[j]);
}
 
r[i] = (SECTION *)(&d[current_offset]);
r[current_section]->m_start = 0;
r[current_section]->m_len = 0;
 
elf_end(e);
close(fd);
}
 
void usage(void) {
printf("USAGE: zippy_tb [-a] <testfile.out>\n");
printf("\n");
1674,6 → 2040,7
Verilated::commandArgs(argc, argv);
ZIPPY_TB *tb = new ZIPPY_TB();
bool autorun = false, exit_on_done = false, autostep=false;
ZIPI entry = RAMBASE;
 
// mem[0x00000] = 0xbe000010; // Halt instruction
unsigned int mptr = 0;
1706,6 → 2073,19
break;
}
} else if (access(argv[argn], R_OK)==0) {
if (iself(argv[argn])) {
SECTION **secpp = NULL, *secp;
elfread(argv[argn], entry, secpp);
for(int i=0; secpp[i]->m_len; i++) {
secp = secpp[i];
assert(secp->m_start >= RAMBASE);
assert(secp->m_start+secp->m_len <= RAMBASE+MEMWORDS);
memcpy(&tb->m_mem[secp->m_start-RAMBASE],
&secp->m_data,
secp->m_len*sizeof(ZIPI));
mptr = secp->m_start+secp->m_len;
}
} else {
FILE *fp = fopen(argv[argn], "r");
int nr, nv = 0;
if (fp == NULL) {
1727,6 → 2107,7
perror("O/S Err?:");
exit(-2);
}
}
} else {
fprintf(stderr, "No access to %s, or unknown arg\n", argv[argn]);
exit(-2);
1745,6 → 2126,9
for(int i=0; i<2; i++)
tb->tick();
tb->m_core->v__DOT__cmd_halt = 0;
tb->wb_write(CMD_REG, CMD_HALT|CMD_RESET|15);
tb->wb_write(CMD_DATA, entry);
tb->wb_write(CMD_REG, 15);
while(!done) {
tb->tick();
 
1766,7 → 2150,9
bool done = false;
 
printf("Running in non-interactive mode, via step commands\n");
tb->wb_write(CMD_REG, CMD_HALT|CMD_RESET);
tb->wb_write(CMD_REG, CMD_HALT|CMD_RESET|15);
tb->wb_write(CMD_DATA, entry);
tb->wb_write(CMD_REG, 15);
while(!done) {
tb->wb_write(CMD_REG, CMD_STEP);
done = (tb->test_success())||(tb->test_failure());
1784,14 → 2170,14
tb->m_core->v__DOT__cmd_reset = 1;
tb->m_core->v__DOT__cmd_halt = 0;
 
/*
tb->jump_to(entry);
 
// For debugging purposes: do we wish to skip some number of
// instructions to fast forward to a time of interest??
for(int i=0; i<0x4d0; i++) {
for(int i=0; i<0x3f80; i++) {
tb->m_core->v__DOT__cmd_halt = 0;
tb->tick();
}
*/
 
int chv = 'q';
 
1919,8 → 2305,8
if (manual) {
tb->show_state();
} else if (halted) {
if (tb->dbg_fp)
fprintf(tb->dbg_fp, "\n\nREAD-STATE ******\n");
if (tb->m_dbgfp)
fprintf(tb->m_dbgfp, "\n\nREAD-STATE ******\n");
tb->read_state();
} else
tb->show_state();
1958,6 → 2344,10
#endif
 
printf("\n");
if (tb->test_failure()) {
tb->dump_state();
}
 
printf("Clocks used : %08x\n", tb->m_core->v__DOT__mtc_data);
printf("Instructions Issued : %08x\n", tb->m_core->v__DOT__mic_data);
printf("Tick Count : %08lx\n", tb->m_tickcount);

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