+ * from: Utah $Hdr: cpu.h 1.16 91/03/25$
+ *
+ * @(#)cpu.h 7.7 (Berkeley) 6/27/91
+ */
+
+/*
+ * Exported definitions unique to hp300/68k cpu support.
+ */
+
+/*
+ * definitions of cpu-dependent requirements
+ * referenced in generic code
+ */
+#define COPY_SIGCODE /* copy sigcode above user stack in exec */
+
+/*
+ * function vs. inline configuration;
+ * these are defined to get generic functions
+ * rather than inline or machine-dependent implementations
+ */
+#define NEED_MINMAX /* need {,i,l,ul}{min,max} functions */
+#undef NEED_FFS /* don't need ffs function */
+#undef NEED_BCMP /* don't need bcmp function */
+#undef NEED_STRLEN /* don't need strlen function */
+
+#define cpu_exec(p) /* nothing */
+#define cpu_wait(p) /* nothing */
+
+/*
+ * Arguments to hardclock, softclock and gatherstats
+ * encapsulate the previous machine state in an opaque
+ * clockframe; for hp300, use just what the hardware
+ * leaves on the stack.
+ */
+typedef struct intrframe {
+ int pc;
+ int ps;
+} clockframe;
+
+#define CLKF_USERMODE(framep) (((framep)->ps & PSL_S) == 0)
+#define CLKF_BASEPRI(framep) (((framep)->ps & PSL_IPL7) == 0)
+#define CLKF_PC(framep) ((framep)->pc)
+
+
+/*
+ * Preempt the current process if in interrupt from user mode,
+ * or after the current trap/syscall if in system mode.
+ */
+#define need_resched() { want_resched++; aston(); }
+
+/*
+ * Give a profiling tick to the current process from the softclock
+ * interrupt. On hp300, request an ast to send us through trap(),
+ * marking the proc as needing a profiling tick.
+ */
+#define profile_tick(p, framep) { (p)->p_flag |= SOWEUPC; aston(); }
+
+/*
+ * Notify the current process (p) that it has a signal pending,
+ * process as soon as possible.
+ */
+#define signotify(p) aston()
+
+#define aston() (astpending++)
+
+int astpending; /* need to trap before returning to user mode */
+int want_resched; /* resched() was called */
+
+
+/*
+ * simulated software interrupt register
+ */
+extern unsigned char ssir;
+
+#define SIR_NET 0x1
+#define SIR_CLOCK 0x2
+
+#define siroff(x) ssir &= ~(x)
+#define setsoftnet() ssir |= SIR_NET
+#define setsoftclock() ssir |= SIR_CLOCK
+
+
+
+/*
+ * The rest of this should probably be moved to ../hp300/hp300cpu.h,
+ * although some of it could probably be put into generic 68k headers.
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