예제 #1
0
always_inline VecFloat frexp_float(VecFloat const & x, typename VecFloat::int_vec & exp)
{
    typedef typename VecFloat::int_vec int_vec;

    const VecFloat exponent_mask = VecFloat::gen_exp_mask();
    const VecFloat exponent = exponent_mask & x;
    const VecFloat x_wo_x = andnot(exponent_mask, x);             // clear exponent

    const int_vec exp_int(exponent);

    exp = srli(exp_int, 16+7) - int_vec(126);
    return x_wo_x | VecFloat::gen_exp_mask_1();
}
예제 #2
0
파일: encode_op.c 프로젝트: occho/cpu
int encode_op(char *opcode, char *op_data)
{
	int rd,rs,rt,imm,funct,shaft,target;
	char tmp[256];
	const char *fi = "%s %d";
	const char *fg = "%s %%g%d";
	const char *ff = "%s %%f%d";
	const char *fl = "%s %s";
	const char *fgi = "%s %%g%d, %d";
	const char *fgl = "%s %%g%d, %s";
	const char *fgg = "%s %%g%d, %%g%d";
	const char *fggl = "%s %%g%d, %%g%d, %s";
	const char *fggi = "%s %%g%d, %%g%d, %d";
	const char *fggg = "%s %%g%d, %%g%d, %%g%d";
	const char *fff = "%s %%f%d, %%f%d";
	const char *fgf = "%s %%g%d, %%f%d";
	const char *ffg = "%s %%f%d, %%g%d";
	const char *fffl = "%s %%f%d, %%f%d, %s";
	const char *ffff = "%s %%f%d, %%f%d, %%f%d";
	const char *ffgi = "%s %%f%d, %%g%d, %d";
	const char *ffgg = "%s %%f%d, %%g%d, %%g%d";
	char lname[256];

	shaft = funct = target = 0;

	if(strcmp(opcode, "mvhi") == 0){
		if(sscanf(op_data, fgi, tmp, &rs, &imm) == 3)
		    return mvhi(rs,0,imm);
	}
	if(strcmp(opcode, "mvlo") == 0){
		if(sscanf(op_data, fgi, tmp, &rs, &imm) == 3)
		    return mvlo(rs,0,imm);
	}
	if(strcmp(opcode, "add") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return add(rs,rt,rd,0);
	}
	if(strcmp(opcode, "nor") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return nor(rs,rt,rd,0);
	}
	if(strcmp(opcode, "sub") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return sub(rs,rt,rd,0);
	}
	if(strcmp(opcode, "mul") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return mul(rs,rt,rd,0);
	}
	if(strcmp(opcode, "addi") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return addi(rs,rt,imm);
	}
	if(strcmp(opcode, "subi") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return subi(rs,rt,imm);
	}
	if(strcmp(opcode, "muli") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return muli(rs,rt,imm);
	}
	if(strcmp(opcode, "input") == 0){
		if(sscanf(op_data, fg, tmp, &rd) == 2)
		    return input(0,0,rd,0);
	}
	if(strcmp(opcode, "inputw") == 0){
		if(sscanf(op_data, fg, tmp, &rd) == 2)
		    return inputw(0,0,rd,0);
	}
	if(strcmp(opcode, "inputf") == 0){
		if(sscanf(op_data, ff, tmp, &rd) == 2)
		    return inputf(0,0,rd,0);
	}
	if(strcmp(opcode, "output") == 0){
		if(sscanf(op_data, fg, tmp, &rs) == 2)
		    return output(rs,0,0,0);
	}
	if(strcmp(opcode, "outputw") == 0){
		if(sscanf(op_data, fg, tmp, &rs) == 2)
		    return outputw(rs,0,0,0);
	}
	if(strcmp(opcode, "outputf") == 0){
		if(sscanf(op_data, ff, tmp, &rs) == 2)
		    return outputf(rs,0,0,0);
	}
	if(strcmp(opcode, "and") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return _and(rs,rt,rd,0);
	}
	if(strcmp(opcode, "or") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return _or(rs,rt,rd,0);
	}
	if(strcmp(opcode, "sll") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return sll(rs,rt,rd,0);
	}
	if(strcmp(opcode, "srl") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return srl(rs,rt,rd,0);
	}
	if(strcmp(opcode, "slli") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return slli(rs,rt,imm);
	}
	if(strcmp(opcode, "srli") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return srli(rs,rt,imm);
	}
	if(strcmp(opcode, "b") == 0){
		if(sscanf(op_data, fg, tmp, &rs) == 2)
		    return b(rs,0,0,0);
	}
	if(strcmp(opcode, "jmp") == 0){
		if(sscanf(op_data, fl, tmp, lname) == 2) {
			strcpy(label_name[label_cnt],lname);
		    return jmp(label_cnt++);
		}
	}
	if(strcmp(opcode, "jeq") == 0){
		if(sscanf(op_data, fggl, tmp, &rs, &rt, lname) == 4) {
			strcpy(label_name[label_cnt],lname);
		    return jeq(rs,rt,label_cnt++);
		}
	}
	if(strcmp(opcode, "jne") == 0){
		if(sscanf(op_data, fggl, tmp, &rs, &rt, lname) == 4) {
			strcpy(label_name[label_cnt],lname);
		    return jne(rs,rt,label_cnt++);
		}
	}
	if(strcmp(opcode, "jlt") == 0){
		if(sscanf(op_data, fggl, tmp, &rs, &rt, lname) == 4) {
			strcpy(label_name[label_cnt],lname);
		    return jlt(rs,rt,label_cnt++);
		}
	}
	if(strcmp(opcode, "jle") == 0){
		if(sscanf(op_data, fggl, tmp, &rs, &rt, lname) == 4) {
			strcpy(label_name[label_cnt],lname);
		    return jle(rs,rt,label_cnt++);
		}
	}
	if(strcmp(opcode, "call") == 0){
		if(sscanf(op_data, fl, tmp, lname) == 2)  {
			strcpy(label_name[label_cnt],lname);
		    return call(label_cnt++);
		}
	}
	if(strcmp(opcode, "callR") == 0){
		if(sscanf(op_data, fg, tmp, &rs) == 2)
		    return callr(rs,0,0,0);
	}
	if(strcmp(opcode, "return") == 0){
		    return _return(0);
	}
	if(strcmp(opcode, "ld") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return ld(rs,rt,rd,0);
	}
	if(strcmp(opcode, "ldi") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return ldi(rs,rt,imm);
	}
	if(strcmp(opcode, "ldlr") == 0){
		if(sscanf(op_data, fgi, tmp, &rs, &imm) == 3)
		    return ldlr(rs,0,imm);
	}
	if(strcmp(opcode, "fld") == 0){
		if(sscanf(op_data, ffgg, tmp, &rd, &rs,&rt) == 4)
		    return fld(rs,rt,rd,0);
	}
	if(strcmp(opcode, "st") == 0){
		if(sscanf(op_data, fggg, tmp, &rd, &rs,&rt) == 4)
		    return st(rs,rt,rd,0);
	}
	if(strcmp(opcode, "sti") == 0){
		if(sscanf(op_data, fggi, tmp, &rt, &rs, &imm) == 4)
		    return sti(rs,rt,imm);
	}
	if(strcmp(opcode, "stlr") == 0){
		if(sscanf(op_data, fgi, tmp, &rs, &imm) == 3)
		    return stlr(rs,0,imm);
	}
	if(strcmp(opcode, "fst") == 0){
		if(sscanf(op_data, ffgg, tmp, &rd, &rs,&rt) == 4)
		    return fst(rs,rt,rd,0);
	}
	if(strcmp(opcode, "fadd") == 0){
		if(sscanf(op_data, ffff, tmp, &rd, &rs, &rt) == 4)
		    return fadd(rs,rt,rd,0);
	}
	if(strcmp(opcode, "fsub") == 0){
		if(sscanf(op_data, ffff, tmp, &rd, &rs, &rt) == 4)
		    return fsub(rs,rt,rd,0);
	}
	if(strcmp(opcode, "fmul") == 0){
		if(sscanf(op_data, ffff, tmp, &rd, &rs, &rt) == 4)
		    return fmul(rs,rt,rd,0);
	}
	if(strcmp(opcode, "fdiv") == 0){
		if(sscanf(op_data, ffff, tmp, &rd, &rs, &rt) == 4)
		    return fdiv(rs,rt,rd,0);
	}
	if(strcmp(opcode, "fsqrt") == 0){
		if(sscanf(op_data, fff, tmp, &rd, &rs) == 3)
		    return fsqrt(rs,0,rd,0);
	}
	if(strcmp(opcode, "fabs") == 0){
		if(sscanf(op_data, fff, tmp, &rd, &rs) == 3)
		    return _fabs(rs,0,rd,0);
	}
	if(strcmp(opcode, "fmov") == 0){
		if(sscanf(op_data, fff, tmp, &rd, &rs) == 3)
		    return fmov(rs,0,rd,0);
	}
	if(strcmp(opcode, "fneg") == 0){
		if(sscanf(op_data, fff, tmp, &rd, &rs) == 3)
		    return fneg(rs,0,rd,0);
	}
	if(strcmp(opcode, "fldi") == 0){
		if(sscanf(op_data, ffgi, tmp, &rt, &rs, &imm) == 4)
		    return fldi(rs,rt,imm);
	}
	if(strcmp(opcode, "fsti") == 0){
		if(sscanf(op_data, ffgi, tmp, &rt, &rs, &imm) == 4)
		    return fsti(rs,rt,imm);
	}
	if(strcmp(opcode, "fjeq") == 0){
		if(sscanf(op_data, fffl, tmp, &rs, &rt, lname) == 4) {
			strcpy(label_name[label_cnt],lname);
		    return fjeq(rs,rt,label_cnt++);
		}
	}
	if(strcmp(opcode, "fjlt") == 0){
		if(sscanf(op_data, fffl, tmp, &rs, &rt, lname) == 4) {
			strcpy(label_name[label_cnt],lname);
		    return fjlt(rs,rt,label_cnt++);
		}
	}
	if(strcmp(opcode, "halt") == 0){
		    return halt(0,0,0,0);
	}
	if(strcmp(opcode, "setL") == 0){
		if(sscanf(op_data, fgl, tmp, &rd, lname) == 3) {
			strcpy(label_name[label_cnt],lname);
		    return setl(0,rd,label_cnt++);
		}
	}
	if(strcmp(opcode, "padd") == 0){
		if(sscanf(op_data, fgi, tmp, &rt, &imm) == 3) {
		    return padd(0,rt,imm);
		}
	}
	if(strcmp(opcode, "link") == 0){
		if(sscanf(op_data, fi, tmp, &imm) == 2) {
		    return link(0,0,imm);
		}
	}
	if(strcmp(opcode, "movlr") == 0){
		return movlr(0,0,0,0);
	}
	if(strcmp(opcode, "btmplr") == 0){
		return btmplr(0,0,0,0);
	}
	/*
	if(strcmp(opcode, "padd") == 0){
		if(sscanf(op_data, fgg, tmp, &rd, &rt) == 3) {
		    return padd(0,rt,d,0);
		}
	}
	*/

	return -1;
}