From 90ccc69f5be0b7e26c3607dac07340fe3e271509 Mon Sep 17 00:00:00 2001 From: forsyth Date: Fri, 25 Feb 2011 10:59:02 +0000 Subject: 20110225-1058 --- FreeBSD/386/include/emu.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 FreeBSD/386/include/emu.h (limited to 'FreeBSD/386/include') diff --git a/FreeBSD/386/include/emu.h b/FreeBSD/386/include/emu.h new file mode 100644 index 00000000..5e03489b --- /dev/null +++ b/FreeBSD/386/include/emu.h @@ -0,0 +1,30 @@ +/* + * system- and machine-specific declarations for emu: + * floating-point save and restore, signal handling primitive, and + * implementation of the current-process variable `up'. + */ + +/* + * This structure must agree with FPsave and FPrestore asm routines + */ +typedef struct FPU FPU; +struct FPU +{ + uchar env[28]; +}; + +#define KSTACK (32 * 1024) + +static __inline Proc *getup(void) { + Proc *p; + __asm__( "movl %%esp, %%eax\n\t" + : "=a" (p) + ); + return *(Proc **)((unsigned long)p & ~(KSTACK - 1)); +}; + +#define up (getup()) + +typedef sigjmp_buf osjmpbuf; +#define ossetjmp(buf) sigsetjmp(buf, 1) + -- cgit v1.2.3