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colbanks.c
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colbanks.c
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#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <ctype.h>
void combine_bins(char *newfn, char *iofn) {
FILE *ifp;
FILE *ofp;
uint8_t addrhdr[2];
uint8_t idata1[8192];
int addr1;
int idata1_len;
uint8_t idata2[8192];
int addr2;
int idata2_len;
int address;
uint8_t odata[8192];
int odata_len;
ifp = fopen(newfn, "r");
fread(addrhdr,1,2,ifp);
addr1 = addrhdr[0] | (addrhdr[1] << 8);
idata1_len = fread(idata1,1,8192,ifp);
fclose(ifp);
ifp = fopen(iofn, "r");
fread(addrhdr,1,2,ifp);
addr2 = addrhdr[0] | (addrhdr[1] << 8);
idata2_len = fread(idata2,1,8192,ifp);
fclose(ifp);
if (addr1 < addr2) {
address = addr1;
memcpy(odata,idata1,idata1_len);
memcpy(odata+addr2-addr1,idata2,idata2_len);
odata_len = addr2-addr1+idata2_len;
} else {
address = addr2;
memcpy(odata,idata2,idata2_len);
memcpy(odata+addr1-addr2,idata1,idata1_len);
odata_len = addr1-addr2+idata1_len;
}
addrhdr[0] = address & 0xFF;
addrhdr[1] = (address & 0xFF00) >> 8;
sprintf(&iofn[strlen(iofn)-8],"%s",newfn);
ofp = fopen(iofn, "w");
fwrite(addrhdr,1,2,ofp);
fwrite(odata,1,odata_len,ofp);
fclose(ofp);
}
void main(int argc, char **argv) {
FILE *ofp;
char *ifn;
int ifn_len;
int num_banks = 0;
int bank;
int filled_bank;
char bank_str[4] = "000";
char bins[256][64];
struct dirent *entry;
DIR *dp;
int i;
char *paramsfn = "bankparams.asm";
if (argc >= 2) {
paramsfn = argv[1];
}
ofp = fopen(paramsfn, "w");
if (ofp == NULL) {
printf("Error opening %s for writing\n", paramsfn);
return;
}
for (bank=0; bank<256; bank++) {
bins[bank][0] = '\0';
}
dp = opendir(".");
while (entry = readdir(dp)) {
ifn = entry->d_name;
ifn_len = strlen(ifn);
if ( (ifn_len > 9)
&& !memcmp(&ifn[ifn_len-9],".B",2*sizeof(char))
&& !memcmp(&ifn[ifn_len-4],".BIN",4*sizeof(char)) ) {
memcpy(bank_str,&ifn[ifn_len-7],3*sizeof(char));
bank = atoi(bank_str);
if (strlen(bins[bank])) {
combine_bins(ifn,bins[bank]);
} else {
strcpy(bins[bank],ifn);
}
if (bank+1 > num_banks) {
num_banks = bank+1;
}
}
}
closedir(dp);
bank = 0;
while (bank < num_banks) {
for (i = 0; i < strlen(bins[bank]); i++) {
bins[bank][i] = tolower(bins[bank][i]);
}
if (strlen(bins[bank])) {
fprintf(ofp,"b%d_filename: .asciiz \"%s\"\n", bank, bins[bank]);
} else {
fprintf(ofp,"b%d_filename: .byte 0\n", bank);
}
bank++;
}
fprintf(ofp,"end_filenames:\n");
fprintf(ofp,"BANKS_TO_LOAD = %d\n", num_banks);
fprintf(ofp,"bankparams:\n");
for (bank = 0; bank < num_banks; bank++) {
if (bank+1 == num_banks) {
fprintf(ofp,".byte end_filenames-b%d_filename-1\n", bank);
} else {
fprintf(ofp,".byte b%d_filename-b%d_filename-1\n", bank+1, bank);
}
fprintf(ofp,".byte <b%d_filename\n",bank);
fprintf(ofp,".byte >b%d_filename\n",bank);
}
fclose(ofp);
}