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/* varargs.h for SPUR */
/* NB. This is NOT the definition needed for the new ANSI proposed
standard */
struct __va_struct { char __regs[20]; };
#define va_alist __va_regs, __va_stack
#define va_dcl struct __va_struct __va_regs; int __va_stack;
typedef struct {
int __pnt;
char *__regs;
char *__stack;
} va_list;
#define va_start(pvar) \
((pvar).__pnt = 0, (pvar).__regs = __va_regs.__regs, \
(pvar).__stack = (char *) &__va_stack)
#define va_end(pvar)
#define va_arg(pvar,type) \
({ type __va_result; \
if ((pvar).__pnt >= 20) { \
__va_result = *( (type *) ((pvar).__stack + (pvar).__pnt - 20)); \
(pvar).__pnt += (sizeof(type) + 7) & ~7; \
} \
else if ((pvar).__pnt + sizeof(type) > 20) { \
__va_result = * (type *) (pvar).__stack; \
(pvar).__pnt = 20 + ( (sizeof(type) + 7) & ~7); \
} \
else if (sizeof(type) == 8) { \
union {double d; int i[2];} __u; \
__u.i[0] = *(int *) ((pvar).__regs + (pvar).__pnt); \
__u.i[1] = *(int *) ((pvar).__regs + (pvar).__pnt + 4); \
__va_result = * (type *) &__u; \
(pvar).__pnt += 8; \
} \
else { \
__va_result = * (type *) ((pvar).__regs + (pvar).__pnt); \
(pvar).__pnt += (sizeof(type) + 3) & ~3; \
} \
__va_result; })
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