code: 9ferno

ref: fcccaf74c54ecd44b7e8bf45a7b0c99572f6a949
dir: /Plan9/386/include/emu.h/

View raw version 
/*
 * system- and machine-specific declarations for emu:
 * floating-point save and restore, signal handling primitive, and
 * implementation of the current-process variable `up'.
 */

extern	Proc**	Xup;
#define	up	(*Xup)

typedef	struct	FPU	FPU;

/*
 * This structure must agree with FPsave and FPrestore asm routines
 */
struct FPU
{
	uchar	env[28];
};

typedef jmp_buf osjmpbuf;
#define	ossetjmp(buf)	setjmp(buf)