diff options
Diffstat (limited to 'NetBSD/power/include/emu.h')
| -rw-r--r-- | NetBSD/power/include/emu.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/NetBSD/power/include/emu.h b/NetBSD/power/include/emu.h new file mode 100644 index 00000000..83af30d8 --- /dev/null +++ b/NetBSD/power/include/emu.h @@ -0,0 +1,28 @@ +/* + * 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[18*8]; +}; + +#define KSTACK (32 * 1024) + +static __inline Proc *getup(void) { + Proc *p; + __asm__( "mr %0, 1" : "=r" (p)); + return *(Proc **)((unsigned long)p & ~(KSTACK - 1)); +}; + +#define up (getup()) + +typedef sigjmp_buf osjmpbuf; +#define ossetjmp(buf) sigsetjmp(buf, 1) + |
