| Line 43... |
Line 43... |
//
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//
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//
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//
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//
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//
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <strings.h>
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#include <strings.h>
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#include <ctype.h>
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#include <ctype.h>
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#include <string.h>
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#include <string.h>
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#include <signal.h>
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#include <signal.h>
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#include <assert.h>
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#include <assert.h>
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#include "usbi.h"
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#include "usbi.h"
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#include "port.h"
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#include "port.h"
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#include "regdefs.h"
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#include "regdefs.h"
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#include "flashdrvr.h"
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|
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bool iself(const char *fname) {
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FILE *fp;
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bool ret = true;
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fp = fopen(fname, "rb");
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if (!fp) return false;
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if (0x7f != fgetc(fp)) ret = false;
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if ('E' != fgetc(fp)) ret = false;
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if ('L' != fgetc(fp)) ret = false;
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if ('F' != fgetc(fp)) ret = false;
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fclose(fp);
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return ret;
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}
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|
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long fgetwords(FILE *fp) {
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// Return the number of words in the current file, and return the
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// file as though it had never been adjusted
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long fpos, flen;
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fpos = ftell(fp);
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if (0 != fseek(fp, 0l, SEEK_END)) {
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fprintf(stderr, "ERR: Could not determine file size\n");
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perror("O/S Err:");
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exit(-2);
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} flen = ftell(fp);
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if (0 != fseek(fp, fpos, SEEK_SET)) {
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|
fprintf(stderr, "ERR: Could not seek on file\n");
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|
perror("O/S Err:");
|
|
exit(-2);
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|
} flen /= sizeof(FPGA::BUSW);
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|
return flen;
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}
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|
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FPGA *m_fpga;
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FPGA *m_fpga;
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class SECTION {
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public:
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unsigned m_start, m_len;
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FPGA::BUSW m_data[1];
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};
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|
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SECTION **singlesection(int nwords) {
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fprintf(stderr, "NWORDS = %d\n", nwords);
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size_t sz = (2*(sizeof(SECTION)+sizeof(SECTION *))
|
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+(nwords-1)*(sizeof(FPGA::BUSW)));
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char *d = (char *)malloc(sz);
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SECTION **r = (SECTION **)d;
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memset(r, 0, sz);
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r[0] = (SECTION *)(&d[2*sizeof(SECTION *)]);
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r[0]->m_len = nwords;
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r[1] = (SECTION *)(&r[0]->m_data[r[0]->m_len]);
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r[0]->m_start = 0;
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r[1]->m_start = 0;
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r[1]->m_len = 0;
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return r;
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}
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SECTION **rawsection(const char *fname) {
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SECTION **secpp, *secp;
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unsigned num_words;
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FILE *fp;
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int nr;
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fp = fopen(fname, "r");
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if (fp == NULL) {
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fprintf(stderr, "Could not open: %s\n", fname);
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exit(-1);
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}
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if ((num_words=fgetwords(fp)) > MEMWORDS) {
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fprintf(stderr, "File overruns Block RAM\n");
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exit(-1);
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}
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secpp = singlesection(num_words);
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secp = secpp[0];
|
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secp->m_start = RAMBASE;
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secp->m_len = num_words;
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nr= fread(secp->m_data, sizeof(FPGA::BUSW), num_words, fp);
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if (nr != (int)num_words) {
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fprintf(stderr, "Could not read entire file\n");
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perror("O/S Err:");
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exit(-2);
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} assert(secpp[1]->m_len == 0);
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|
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return secpp;
|
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}
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|
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unsigned byteswap(unsigned n) {
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unsigned r;
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|
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r = (n&0x0ff); n>>= 8;
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r = (r<<8) | (n&0x0ff); n>>= 8;
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r = (r<<8) | (n&0x0ff); n>>= 8;
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r = (r<<8) | (n&0x0ff); n>>= 8;
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|
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return r;
|
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}
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// #define CHEAP_AND_EASY
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#ifdef CHEAP_AND_EASY
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#else
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#include <libelf.h>
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#include <gelf.h>
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void elfread(const char *fname, unsigned &entry, SECTION **§ions) {
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Elf *e;
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int fd, i;
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size_t n;
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char *id;
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Elf_Kind ek;
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GElf_Ehdr ehdr;
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GElf_Phdr phdr;
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const bool dbg = false;
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|
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if (elf_version(EV_CURRENT) == EV_NONE) {
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fprintf(stderr, "ELF library initialization err, %s\n", elf_errmsg(-1));
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perror("O/S Err:");
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exit(EXIT_FAILURE);
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} if ((fd = open(fname, O_RDONLY, 0)) < 0) {
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fprintf(stderr, "Could not open %s\n", fname);
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perror("O/S Err:");
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exit(EXIT_FAILURE);
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} if ((e = elf_begin(fd, ELF_C_READ, NULL))==NULL) {
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fprintf(stderr, "Could not run elf_begin, %s\n", elf_errmsg(-1));
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exit(EXIT_FAILURE);
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}
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|
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ek = elf_kind(e);
|
|
if (ek == ELF_K_ELF) {
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; // This is the kind of file we should expect
|
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} else if (ek == ELF_K_AR) {
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fprintf(stderr, "Cannot run an archive!\n");
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exit(EXIT_FAILURE);
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} else if (ek == ELF_K_NONE) {
|
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;
|
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} else {
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fprintf(stderr, "Unexpected ELF file kind!\n");
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exit(EXIT_FAILURE);
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}
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if (gelf_getehdr(e, &ehdr) == NULL) {
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fprintf(stderr, "getehdr() failed: %s\n", elf_errmsg(-1));
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exit(EXIT_FAILURE);
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} if ((i=gelf_getclass(e)) == ELFCLASSNONE) {
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fprintf(stderr, "getclass() failed: %s\n", elf_errmsg(-1));
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exit(EXIT_FAILURE);
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} if ((id = elf_getident(e, NULL)) == NULL) {
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fprintf(stderr, "getident() failed: %s\n", elf_errmsg(-1));
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exit(EXIT_FAILURE);
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} if (i != ELFCLASS32) {
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fprintf(stderr, "This is a 64-bit ELF file, ZipCPU ELF files are all 32-bit\n");
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exit(EXIT_FAILURE);
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}
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if (dbg) {
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printf(" %-20s 0x%jx\n", "e_type", (uintmax_t)ehdr.e_type);
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printf(" %-20s 0x%jx\n", "e_machine", (uintmax_t)ehdr.e_machine);
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printf(" %-20s 0x%jx\n", "e_version", (uintmax_t)ehdr.e_version);
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printf(" %-20s 0x%jx\n", "e_entry", (uintmax_t)ehdr.e_entry);
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printf(" %-20s 0x%jx\n", "e_phoff", (uintmax_t)ehdr.e_phoff);
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printf(" %-20s 0x%jx\n", "e_shoff", (uintmax_t)ehdr.e_shoff);
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printf(" %-20s 0x%jx\n", "e_flags", (uintmax_t)ehdr.e_flags);
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printf(" %-20s 0x%jx\n", "e_ehsize", (uintmax_t)ehdr.e_ehsize);
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printf(" %-20s 0x%jx\n", "e_phentsize", (uintmax_t)ehdr.e_phentsize);
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printf(" %-20s 0x%jx\n", "e_shentsize", (uintmax_t)ehdr.e_shentsize);
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printf("\n");
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}
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// Check whether or not this is an ELF file for the ZipCPU ...
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if (ehdr.e_machine != 0x0dadd) {
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fprintf(stderr, "This is not a ZipCPU ELF file\n");
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exit(EXIT_FAILURE);
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}
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// Get our entry address
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entry = ehdr.e_entry;
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// Now, let's go look at the program header
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if (elf_getphdrnum(e, &n) != 0) {
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fprintf(stderr, "elf_getphdrnum() failed: %s\n", elf_errmsg(-1));
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exit(EXIT_FAILURE);
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}
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unsigned total_octets = 0, current_offset=0, current_section=0;
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for(i=0; i<(int)n; i++) {
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total_octets += sizeof(SECTION *)+sizeof(SECTION);
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if (gelf_getphdr(e, i, &phdr) != &phdr) {
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fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
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exit(EXIT_FAILURE);
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}
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if (dbg) {
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printf(" %-20s 0x%x\n", "p_type", phdr.p_type);
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printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
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printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
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printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
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printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
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printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
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printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
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if (phdr.p_flags & PF_X) printf(" Execute");
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if (phdr.p_flags & PF_R) printf(" Read");
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if (phdr.p_flags & PF_W) printf(" Write");
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printf("]\n");
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printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
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}
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total_octets += phdr.p_memsz;
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}
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|
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char *d = (char *)malloc(total_octets);
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|
memset(d, 0, total_octets);
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|
|
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SECTION **r = sections = (SECTION **)d;
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current_offset = (n+1)*sizeof(SECTION *);
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current_section = 0;
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for(i=0; i<(int)n; i++) {
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r[i] = (SECTION *)(&d[current_offset]);
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|
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if (gelf_getphdr(e, i, &phdr) != &phdr) {
|
|
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
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}
|
|
|
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if (dbg) {
|
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printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
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printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
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printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
|
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printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
|
|
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
|
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printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
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|
|
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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");
|
|
|
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printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
|
|
}
|
|
|
|
current_section++;
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|
|
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r[i]->m_start = phdr.p_vaddr;
|
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r[i]->m_len = phdr.p_filesz/ sizeof(FPGA::BUSW);
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|
|
|
current_offset += phdr.p_memsz + sizeof(SECTION);
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|
|
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// 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);
|
|
}
|
|
|
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// 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]);
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|
|
|
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[current_section]->m_start = 0;
|
|
r[current_section]->m_len = 0;
|
|
|
|
elf_end(e);
|
|
close(fd);
|
|
}
|
|
#endif
|
|
|
|
void usage(void) {
|
|
printf("USAGE: ziprun [-hmprux] <zip-program-file>\n");
|
|
printf("\n"
|
|
"\t-h\tDisplay this usage statement\n"
|
|
"\t-m\tClear unused memory locations. Note this only applies to SDRAM\n"
|
|
"\t\t(if used) and block ram, not flash.\n"
|
|
"\t-p [PORT]\tConnect to the XuLA device across a network access\n"
|
|
"\t\tconnection using port PORT, rather than attempting a USB\n"
|
|
"\t\tconnection. If PORT is not given, %s:%d will be\n"
|
|
"\t\tassumed as a default.\n"
|
|
"\t-u\tAccess the XuLA board via the USB connector [DEFAULT]\n"
|
|
"\t-x\tClear all of the ZipCPU registers to a known initial state\n\n",
|
|
FPGAHOST,FPGAPORT);
|
|
}
|
|
|
int main(int argc, char **argv) {
|
int main(int argc, char **argv) {
|
FILE *fp;
|
|
int nr, pos=0;
|
|
const int BUFLN = 128;
|
|
FPGA::BUSW *buf = new FPGA::BUSW[BUFLN];
|
|
int skp=0, port = FPGAPORT;
|
int skp=0, port = FPGAPORT;
|
bool use_usb = true;
|
bool use_usb = true, permit_raw_files = false;
|
|
unsigned entry = RAMBASE;
|
|
bool clear_registers = false, clear_memory = false;
|
|
FLASHDRVR *flash = NULL;
|
|
|
|
if (argc < 2) {
|
|
usage();
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
|
skp=1;
|
skp=1;
|
for(int argn=0; argn<argc-skp; argn++) {
|
for(int argn=0; argn<argc-skp; argn++) {
|
if (argv[argn+skp][0] == '-') {
|
if (argv[argn+skp][0] == '-') {
|
if (argv[argn+skp][1] == 'u')
|
switch(argv[argn+skp][1]) {
|
use_usb = true;
|
case 'h':
|
else if (argv[argn+skp][1] == 'p') {
|
usage();
|
|
exit(EXIT_SUCCESS);
|
|
case 'm':
|
|
clear_memory = true;
|
|
fprintf(stderr, "Clear memory feature not yet implemented\n");
|
|
exit(EXIT_FAILURE);
|
|
break;
|
|
case 'p':
|
use_usb = false;
|
use_usb = false;
|
if (isdigit(argv[argn+skp][2]))
|
if (isdigit(argv[argn+skp][2]))
|
port = atoi(&argv[argn+skp][2]);
|
port = atoi(&argv[argn+skp][2]);
|
}
|
break;
|
skp++; argn--;
|
case 'r':
|
|
permit_raw_files = true;
|
|
break;
|
|
case 'u':
|
|
use_usb = true;
|
|
break;
|
|
case 'x':
|
|
clear_registers = true;
|
|
break;
|
|
} skp++; argn--;
|
} else
|
} else
|
argv[argn] = argv[argn+skp];
|
argv[argn] = argv[argn+skp];
|
} argc -= skp;
|
} argc -= skp;
|
|
|
if (use_usb)
|
if (use_usb)
|
| Line 90... |
Line 407... |
printf("Usage: ziprun obj-file\n");
|
printf("Usage: ziprun obj-file\n");
|
printf("\n"
|
printf("\n"
|
"\tziprun loads the object file into memory, resets the CPU, and leaves it\n"
|
"\tziprun loads the object file into memory, resets the CPU, and leaves it\n"
|
"\tin a halted state ready to start running the object file.\n");
|
"\tin a halted state ready to start running the object file.\n");
|
exit(-1);
|
exit(-1);
|
}
|
} const char *codef = argv[0];
|
|
|
printf("Halting the CPU\n");
|
printf("Halting the CPU\n");
|
m_fpga->usleep(5);
|
m_fpga->usleep(5);
|
m_fpga->writeio(R_ZIPCTRL, CPU_RESET|CPU_HALT);
|
m_fpga->writeio(R_ZIPCTRL, CPU_RESET|CPU_HALT);
|
|
|
fp = fopen(argv[0], "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Could not open: %s\n", argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
try {
|
try {
|
pos = RAMBASE;
|
SECTION **secpp = NULL, *secp;
|
while((nr=fread(buf, sizeof(FPGA::BUSW), BUFLN, fp))>0) {
|
|
// printf("Writing %4d values, pos = %08x\n", nr, pos);
|
|
m_fpga->writei(pos, nr, buf);
|
|
// printf("\tWritten\n");
|
|
pos += nr;
|
|
} printf("Successfully wrote %04x (%6d) words into memory\n",
|
|
pos-RAMBASE, pos-RAMBASE);
|
|
m_fpga->readio(R_ZIPCTRL);
|
|
|
|
// Do we want to zero out all other RAM addresses?
|
if(iself(codef)) {
|
#define ZERO_RAM
|
#ifndef CHEAP_AND_EASY
|
#ifdef ZERO_RAM
|
// zip-readelf will help with both of these ...
|
unsigned int MAXRAM=2*RAMBASE;
|
elfread(codef, entry, secpp);
|
for(int i=0; i<BUFLN; i++)
|
|
buf[i] = 0;
|
fprintf(stderr, "Secpp = %08lx\n", (unsigned long)secpp);
|
printf("***********************\n");
|
for(int i=0; secpp[i]->m_len; i++) {
|
while(pos < (int)MAXRAM-BUFLN-1) {
|
secp = secpp[i];
|
m_fpga->writei(pos, BUFLN, buf);
|
fprintf(stderr, "Sec[%2d] - %08x - %08x\n",
|
m_fpga->readio(R_ZIPCTRL);
|
i, secp->m_start,
|
pos += BUFLN;
|
secp->m_start+secp->m_len);
|
} m_fpga->writei(pos, MAXRAM-pos-1, buf);
|
}
|
pos += MAXRAM-pos-1;
|
#else
|
|
char tmpbuf[TMP_MAX], cmdbuf[256];
|
|
int unused_fd;
|
|
|
|
strcpy(tmpbuf, "/var/tmp/ziprunXXXX");
|
|
|
|
// Make a temporary file
|
|
unused_fd = mkostemp(tmpbuf, O_CREAT|O_TRUNC|O_RDWR);
|
|
// Close it immediately, since we won't be writing to it
|
|
// ourselves
|
|
close(unused_fd);
|
|
|
m_fpga->usleep(500);
|
// Now we write to it, as part of calling objcopy
|
printf("Zerod rest of RAM - to %06x\n", pos);
|
//
|
|
sprintf(cmdbuf, "zip-objcopy -S -O binary --reverse-bytes=4 %s %s", codef, tmpbuf);
|
|
|
|
if (system(cmdbuf) != 0) {
|
|
unlink(tmpbuf);
|
|
fprintf(stderr, "ZIPRUN: Could not comprehend ELF binary\n");
|
|
exit(-2);
|
|
}
|
|
|
|
secpp = rawsection(tmpbuf);
|
|
unlink(tmpbuf);
|
|
entry = RAMBASE;
|
#endif
|
#endif
|
} catch(BUSERR a) {
|
} else if (permit_raw_files) {
|
fprintf(stderr, "BUS Err at address 0x%08x\n", a.addr);
|
secpp = rawsection(codef);
|
fprintf(stderr, "... is your program too long for this memory?\n");
|
entry = RAMBASE;
|
m_fpga->writeio(R_ZIPCTRL, CPU_RESET|CPU_HALT|CPU_CLRCACHE);
|
}
|
|
|
|
// assert(secpp[1]->m_len = 0);
|
|
for(int i=0; secpp[i]->m_len; i++) {
|
|
bool valid = false;
|
|
secp= secpp[i];
|
|
if ((secp->m_start >= RAMBASE)&&(secp->m_start+secp->m_len <= RAMBASE+MEMWORDS))
|
|
valid = true;
|
|
else if ((secp->m_start >= SDRAMBASE)&&(secp->m_start+secp->m_len <= SDRAMBASE+SDRAMWORDS))
|
|
valid = true;
|
|
else if ((secp->m_start >= SPIFLASH)&&(secp->m_start+secp->m_len <= SPIFLASH+FLASHWORDS))
|
|
valid = true;
|
|
if (!valid) {
|
|
fprintf(stderr, "No such memory on board: 0x%08x - %08x\n",
|
|
secp->m_start, secp->m_start+secp->m_len);
|
exit(-2);
|
exit(-2);
|
}
|
}
|
try {
|
|
m_fpga->readio(R_ZIPCTRL);
|
|
} catch(BUSERR a) {
|
|
fprintf(stderr, "Bus-Err? (%08x)\n", a.addr);
|
|
}
|
}
|
|
|
// Clear any buffers
|
if (clear_memory) for(int i=0; secpp[i]->m_len; i++) {
|
printf("Clearing the cache\n");
|
secp = secpp[i];
|
m_fpga->writeio(R_ZIPCTRL, CPU_RESET|CPU_HALT|CPU_CLRCACHE);
|
if ((secp->m_start >= RAMBASE)
|
|
&&(secp->m_start+secp->m_len
|
|
<= RAMBASE+MEMWORDS)) {
|
|
FPGA::BUSW zbuf[128], a;
|
|
memset(zbuf, 0, 128*sizeof(FPGA::BUSW));
|
|
for(a=RAMBASE; a<RAMBASE+MEMWORDS; a+=128)
|
|
m_fpga->writei(a, 128, zbuf);
|
|
break;
|
|
}
|
|
}
|
|
|
printf("Clearing all registers to zero, PC regs to MEMBASE\n");
|
if (clear_memory) for(int i=0; secpp[i]->m_len; i++) {
|
// Clear all registers to zero
|
secp = secpp[i];
|
for(int i=0; i<32; i++) {
|
if ((secp->m_start >= SDRAMBASE)
|
try {
|
&&(secp->m_start+secp->m_len
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|i);
|
<= SDRAMBASE+SDRAMWORDS)) {
|
m_fpga->readio(R_ZIPCTRL);
|
FPGA::BUSW zbuf[128], a;
|
} catch(BUSERR a) {
|
memset(zbuf, 0, 128*sizeof(FPGA::BUSW));
|
fprintf(stderr, "Bus-ERR while trying to set CPUCTRL to %x\n", CPU_HALT|i);
|
for(a=SDRAMBASE; a<SDRAMBASE+SDRAMWORDS; a+=128)
|
|
m_fpga->writei(a, 128, zbuf);
|
|
break;
|
}
|
}
|
try {
|
|
if ((i&0x0f)==0x0f)
|
|
m_fpga->writeio(R_ZIPDATA, RAMBASE);
|
|
else
|
|
m_fpga->writeio(R_ZIPDATA, 0);
|
|
// printf("REG[%2x] <= %08x\n", i, ((i&0x0f)==0x0f)?RAMBASE:0);
|
|
// m_fpga->readio(R_ZIPDATA);
|
|
// printf("\t= %08x\n", m_fpga->readio(R_ZIPDATA));
|
|
} catch(BUSERR a) {
|
|
fprintf(stderr, "Bus-ERR while trying to clear reg %x\n", i);
|
|
}
|
}
|
|
|
|
for(int i=0; secpp[i]->m_len; i++) {
|
|
bool inflash=false;
|
|
|
|
secp = secpp[i];
|
|
if ((secp->m_start >= SPIFLASH)
|
|
&&(secp->m_start+secp->m_len
|
|
<= SPIFLASH+FLASHWORDS))
|
|
inflash = true;
|
|
if (inflash) {
|
|
if (!flash)
|
|
flash = new FLASHDRVR(m_fpga);
|
|
flash->write(secp->m_start, secp->m_len, secp->m_data, true);
|
|
} else
|
|
m_fpga->writei(secp->m_start, secp->m_len, secp->m_data);
|
}
|
}
|
|
m_fpga->readio(R_ZIPCTRL);
|
|
|
|
// Clear any buffers
|
|
printf("Clearing the cache\n");
|
|
m_fpga->writeio(R_ZIPCTRL, CPU_RESET|CPU_HALT|CPU_CLRCACHE);
|
|
|
printf("Clearing all peripherals\n");
|
if (clear_registers) {
|
for(int i=32; i<32+16; i++) {
|
printf("Clearing all registers to zero\n");
|
try {
|
// Clear all registers to zero
|
if (i==33)
|
for(int i=0; i<32; i++) {
|
continue; // Don't start the watchdog
|
|
if (i==34)
|
|
continue; // Don't start the flash cache
|
|
if (i==39)
|
|
continue; // Jiffies don't clear, don't set the intrupt
|
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|i);
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|i);
|
m_fpga->writeio(R_ZIPDATA, 0);
|
m_fpga->writeio(R_ZIPDATA, 0);
|
} catch (BUSERR a) {
|
|
fprintf(stderr, "Bus-ERR while trying to clear peripheral %d\n", i);
|
|
}
|
}
|
}
|
}
|
|
|
printf("Starting CPU\n");
|
// Start in interrupt mode
|
try {
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|CPU_sCC);
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|CPU_sCC); // Start in interrupt mode
|
|
m_fpga->writeio(R_ZIPDATA, 0x000);
|
m_fpga->writeio(R_ZIPDATA, 0x000);
|
printf("SCC <= 0x%08x\n", m_fpga->readio(R_ZIPDATA));
|
|
} catch (BUSERR a) {
|
|
fprintf(stderr, "Bus Err while trying to set CC register\n");
|
|
}
|
|
|
|
try {
|
// Set our entry point into our code
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|CPU_sPC);
|
m_fpga->writeio(R_ZIPCTRL, CPU_HALT|CPU_sPC);
|
printf("CPU <= 0x%08x\n", m_fpga->readio(R_ZIPCTRL));
|
m_fpga->writeio(R_ZIPDATA, entry);
|
m_fpga->writeio(R_ZIPDATA, RAMBASE); // Start at the base of RAM
|
|
printf("SPC <= 0x%08x\n", m_fpga->readio(R_ZIPDATA));
|
|
} catch (BUSERR a) {
|
} catch (BUSERR a) {
|
fprintf(stderr, "Bus Err while trying to set PC register\n");
|
fprintf(stderr, "XULA-BUS error\n");
|
|
m_fpga->writeio(R_ZIPCTRL, CPU_RESET|CPU_HALT|CPU_CLRCACHE);
|
|
exit(-2);
|
}
|
}
|
printf("PC set to start at %08x\n", m_fpga->readio(R_ZIPDATA));
|
|
// m_fpga->writeio(R_ZIPCTRL, CPU_GO); // Release the CPU to start
|
|
|
|
delete m_fpga;
|
delete m_fpga;
|
}
|
}
|
|
|
|
|
No newline at end of file
|
No newline at end of file
|
