code: purgatorio

ref: c3101e4da486b2bf2e8b911bcb62dd8ec31c41bf
dir: /Plan9/sparc/include/emu.h/

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/*
 * 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
{
        ulong   fsr;
};

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