[unix-history] / gnu / usr.bin / cc / libgcc / _fixdfsi.c

extern int target_flags;
  
enum reg_class
{
  NO_REGS,
  AREG, DREG, CREG, BREG,
  Q_REGS,			 
  SIREG, DIREG,
  INDEX_REGS,			 
  GENERAL_REGS,			 
  FP_TOP_REG, FP_SECOND_REG,	 
  FLOAT_REGS,
  ALL_REGS, LIM_REG_CLASSES
};
extern enum reg_class regclass_map[17 ];
  
   
extern struct rtx_def *i386_compare_op0, *i386_compare_op1;
extern struct rtx_def *(*i386_compare_gen)(), *(*i386_compare_gen_eq)();
extern char *hi_reg_name[];
extern char *qi_reg_name[];
extern char *qi_high_reg_name[];
  
union flt_or_value { float  i; float f; };
union flt_or_int { int i; float f; };
long int 
__fixdfsi (a)
     double a;
{
  {	auto unsigned short ostatus;	auto unsigned short nstatus;	auto int ret;	auto double tmp;	&ostatus;	&nstatus;	&ret;	&tmp;	asm volatile ("fnstcw %0" : "=m" (ostatus));	nstatus = ostatus | 0x0c00;	asm volatile ("fldcw %0" :   : "m" (nstatus));	tmp =  a ;	asm volatile ("fldl %0" :   : "m" (tmp));	asm volatile ("fistpl %0" : "=m" (ret));	asm volatile ("fldcw %0" :   : "m" (ostatus));	return ret;	} ;
}
Commit	Line	Data
9bf86ebb PR	1	extern int target_flags;
	2
	3	enum reg_class
	4	{
	5	NO_REGS,
	6	AREG, DREG, CREG, BREG,
	7	Q_REGS,
	8	SIREG, DIREG,
	9	INDEX_REGS,
	10	GENERAL_REGS,
	11	FP_TOP_REG, FP_SECOND_REG,
	12	FLOAT_REGS,
	13	ALL_REGS, LIM_REG_CLASSES
	14	};
	15	extern enum reg_class regclass_map[17 ];
	16
	17
	18	extern struct rtx_def i386_compare_op0, i386_compare_op1;
	19	extern struct rtx_def (i386_compare_gen)(), (i386_compare_gen_eq)();
	20	extern char *hi_reg_name[];
	21	extern char *qi_reg_name[];
	22	extern char *qi_high_reg_name[];
	23
	24	union flt_or_value { float i; float f; };
	25	union flt_or_int { int i; float f; };
	26	long int
	27	__fixdfsi (a)
	28	double a;
	29	{
	30	{ auto unsigned short ostatus; auto unsigned short nstatus; auto int ret; auto double tmp; &ostatus; &nstatus; &ret; &tmp; asm volatile ("fnstcw %0" : "=m" (ostatus)); nstatus = ostatus \| 0x0c00; asm volatile ("fldcw %0" : : "m" (nstatus)); tmp = a ; asm volatile ("fldl %0" : : "m" (tmp)); asm volatile ("fistpl %0" : "=m" (ret)); asm volatile ("fldcw %0" : : "m" (ostatus)); return ret; } ;
	31	}