86 lines
1.3 KiB
C
86 lines
1.3 KiB
C
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/*
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* this code is not yet used. eventually we want to support using mmap
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* to map rom and sram into memory, so we don't waste virtual memory.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "defs.h"
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#define DOTDIR ".gnuboy"
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static char *home, *saves;
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static char *romfile, *sramfile, *saveprefix;
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static int mmapped_rom, mmaped_sram;
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byte *map_rom()
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{
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int fd, len;
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byte code;
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byte *mem;
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fd = open(romfile, O_READ);
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lseek(fd, 0x0148, SEEK_SET);
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read(fd, &code, 1);
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len = loader_romsize(code);
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#ifdef HAVE_MMAP
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mem = mmap(0, len, PROT_READ,
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#endif
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}
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int map_checkdirs()
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{
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home = malloc(strlen(getenv("HOME")) + strlen(DOTDIR) + 2);
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sprintf(home, "%s/" DOTDIR, getenv(HOME));
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saves = malloc(strlen(home) + 6);
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sprintf(saves, "%s/saves", home);
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if (access(saves, X_OK|W_OK))
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{
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if (access(home, X_OK|W_OK))
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{
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if (!access(home, F_OK))
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die("cannot access %s (%s)\n", home, strerror(errno));
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if (mkdir(home, 0777))
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die("cannot create %s (%s)\n", home, strerror(errno));
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}
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if (!access(saves, F_OK))
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die("cannot access %s (%s)\n", home, strerror(errno));
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if (mkdir(saves, 0777))
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die("cannot create %s (%s)\n", saves, strerror(errno));
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}
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return 0;
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}
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