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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'.
- */
- /*
- * 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)
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