25 lines
789 B
C
25 lines
789 B
C
/* @(#) stackdep.h 1.1 92/07/30 Copyr 1987 Sun Micro */
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/* Copyright (C) 1987. Sun Microsystems, Inc. */
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/*
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* short alignment is possible, but int is preferred for speed
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* usage:
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* stkalign_t foo[SIZE];
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* or
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* stkalign_t *foo;
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* foo = (stkalign_t *)malloc(sizeof(stkalign_t) * SIZE);
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*/
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typedef int stkalign_t; /* alignment for stack */
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/* align adr to legal stack boundary */
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#define STACKALIGN(adr) (((int)(adr)) & ~(sizeof (stkalign_t) - 1))
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#define MINSIGSTKSZ 1000 /* min. size of signal stack in stkalign_t's */
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/* for finding top of stack of stkalign_t's */
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#define STACKTOP(base, size) ((base) + (size))
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#define STACKDOWN TRUE /* TRUE if stacks grow down */
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#define PUSH(sp, obj, type) *--((type *)(sp)) = (obj);
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#define POP(sp, obj, type) (obj) = *((type *)(sp))++;
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