Subversion Repositories openrisc_2011-10-31

struct texture_stage_op

{

    unsigned int carg1, carg2, carg0;

    unsigned int aarg1, aarg2, aarg0;

    unsigned int dst;

};

static const char *debug_register(unsigned int reg) {

    switch(reg) {

        case 0x8921: return "GL_REG_0_ATI";

        case 0x8923: return "GL_REG_2_ATI";

        case 0x0: return "GL_ZERO";

        case 0x1: return "GL_ONE";

        default: return "Unknown register\n";

    }

}

static unsigned int find_tmpreg(struct texture_stage_op op[8]) {

    int i;

    int tex_used[8];

    for(i = 0; i < 8; i++) {

        if(op[i].carg1 == 0x00000002 ) {

            tex_used[i] = 1;

        }

    }

    for(i = 1; i < 6; i++) {

        if(!tex_used[i]) {

                return 0x8921 + i;

        }

    }

    return 0;

}

extern f(const char*);

void g() {

    struct texture_stage_op op[8];

    unsigned int tmparg = find_tmpreg(op);

    unsigned int dstreg;

    if(tmparg == 0x0) return;

    dstreg = tmparg;

    f(debug_register(dstreg));

    return;

}