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Annotation of nono/vm/genrom.cpp, revision 1.1

1.1     ! root        1: //
        !             2: // Copyright (C) 2012-2022 [email protected]
        !             3: //
        !             4: // ROM イメージを C ソースに変換する
        !             5: //
        !             6: // 書式
        !             7: //     genrom <rom.dat> <rom.cpp> <variable_name>
        !             8: // 例
        !             9: //     genrom CGROM.DAT cgrom.cpp CGROM
        !            10: //
        !            11: 
        !            12: #include <cstdint>
        !            13: #include <cstdio>
        !            14: #include <cstdlib>
        !            15: #include <cstring>
        !            16: 
        !            17: int
        !            18: main(int ac, char *av[])
        !            19: {
        !            20:        char buf[4096];
        !            21:        const char *infile;
        !            22:        const char *outfile;
        !            23:        const char *varname;
        !            24:        FILE *in;
        !            25:        FILE *out;
        !            26:        int n;
        !            27:        int i;
        !            28: 
        !            29:        if (ac < 4) {
        !            30:                fprintf(stderr, "usage: %s <infile> <outfile> <variable_name>\n",
        !            31:                        av[0]);
        !            32:                exit(1);
        !            33:        }
        !            34: 
        !            35:        infile  = av[1];
        !            36:        outfile = av[2];
        !            37:        varname = av[3];
        !            38: 
        !            39:        in = fopen(infile, "rb");
        !            40:        if (in == NULL) {
        !            41:                fprintf(stderr, "cannot open %s\n", infile);
        !            42:                exit(1);
        !            43:        }
        !            44: 
        !            45:        out = fopen(outfile, "wb");
        !            46:        if (out == NULL) {
        !            47:                fprintf(stderr, "cannot open %s\n", outfile);
        !            48:                exit(1);
        !            49:        }
        !            50: 
        !            51:        fprintf(out, "// This file was generated by %s\n", av[0]);
        !            52:        fprintf(out, "#include \"builtinrom.h\"\n");
        !            53:        fprintf(out, "/*static*/ uint8 const Builtin::%s[] = {", varname);
        !            54: 
        !            55:        for (;;) {
        !            56:                n = fread(buf, 1, sizeof(buf), in);
        !            57:                if (n == 0) {
        !            58:                        break;
        !            59:                }
        !            60: 
        !            61:                for (i = 0; i < n; i++) {
        !            62:                        if (i % 8 == 0) {
        !            63:                                fprintf(out, "\n\t");
        !            64:                        }
        !            65:                        fprintf(out, "0x%02x,", (unsigned char)buf[i]);
        !            66:                }
        !            67:        }
        !            68:        fprintf(out, "\n};\n");
        !            69: 
        !            70:        fclose(in);
        !            71:        fclose(out);
        !            72:        exit(0);
        !            73: }

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