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  ----------------------------------------------------------------------*/
#include "avcall.h.in"

#define RETURN(TYPE,VAL)	(*(TYPE*)l->raddr = (TYPE)(VAL))
#define OFFSETOF(struct,member) ((int)&(((struct*)0)->member))

register void* callee	__asm__("%g2");  /* any global or local register */
register __avword o0	__asm__("%o0");
register __avword o1	__asm__("%o1");
register __avword o2	__asm__("%o2");
register __avword o3	__asm__("%o3");
register __avword o4	__asm__("%o4");
register __avword o5	__asm__("%o5");

int
__builtin_avcall(av_alist* l)
{
  register __avword* sp	__asm__("%sp");  /* C names for registers */
  register float fret	__asm__("%f0");  /* %f0 */
  register double dret	__asm__("%f0");  /* %f0,%f1 */

  __avword trampoline[6];		/* room for a trampoline */
  __avword space[__AV_ALIST_WORDS];	/* space for callee's stack frame */
  __avword *argframe = sp + 17;		/* stack offset for argument list */
  int arglen = l->aptr - l->args;
  __avword i;

  if (l->farg_mask) {
    /* push leading float args */
    if (l->farg_mask & (1<<0))
      __asm__("ld %1(%0),%%f1" : : "p" (l), "i" OFFSETOF(av_alist,args[0]));
    if (l->farg_mask & (1<<1))
      __asm__("ld %1(%0),%%f3" : : "p" (l), "i" OFFSETOF(av_alist,args[1]));
    if (l->farg_mask & (1<<2))
      __asm__("ld %1(%0),%%f5" : : "p" (l), "i" OFFSETOF(av_alist,args[2]));
    if (l->farg_mask & (1<<3))
      __asm__("ld %1(%0),%%f7" : : "p" (l), "i" OFFSETOF(av_alist,args[3]));
    if (l->farg_mask & (1<<4))
      __asm__("ld %1(%0),%%f9" : : "p" (l), "i" OFFSETOF(av_alist,args[4]));
    if (l->farg_mask & (1<<5))
      __asm__("ld %1(%0),%%f11" : : "p" (l), "i" OFFSETOF(av_alist,args[5]));
    if (l->farg_mask & (1<<6))
      __asm__("ld %1(%0),%%f13" : : "p" (l), "i" OFFSETOF(av_alist,args[6]));
    if (l->farg_mask & (1<<7))
      __asm__("ld %1(%0),%%f15" : : "p" (l), "i" OFFSETOF(av_alist,args[7]));
    if (l->farg_mask & (1<<8))
      __asm__("ld %1(%0),%%f17" : : "p" (l), "i" OFFSETOF(av_alist,args[8]));
    if (l->farg_mask & (1<<9))
      __asm__("ld %1(%0),%%f19" : : "p" (l), "i" OFFSETOF(av_alist,args[9]));
    if (l->farg_mask & (1<<10))
      __asm__("ld %1(%0),%%f21" : : "p" (l), "i" OFFSETOF(av_alist,args[10]));
    if (l->farg_mask & (1<<11))
      __asm__("ld %1(%0),%%f23" : : "p" (l), "i" OFFSETOF(av_alist,args[11]));
    if (l->farg_mask & (1<<12))
      __asm__("ld %1(%0),%%f25" : : "p" (l), "i" OFFSETOF(av_alist,args[12]));
    if (l->farg_mask & (1<<13))
      __asm__("ld %1(%0),%%f27" : : "p" (l), "i" OFFSETOF(av_alist,args[13]));
    if (l->farg_mask & (1<<14))
      __asm__("ld %1(%0),%%f29" : : "p" (l), "i" OFFSETOF(av_alist,args[14]));
    if (l->farg_mask & (1<<15))
      __asm__("ld %1(%0),%%f31" : : "p" (l), "i" OFFSETOF(av_alist,args[15]));
  }
  if (l->darg_mask) {
    /* push leading double args */
    /* push leading float/double args */
    if (l->darg_mask & (1<<0))
      __asm__("ldd %1(%0),%%f0" : : "p" (l), "i" OFFSETOF(av_alist,args[0]));
      __asm__("ldd [%0+%1],%%f0" : : "p" (l), "i" OFFSETOF(av_alist,args[0]));
    if (l->darg_mask & (1<<1))
      __asm__("ldd %1(%0),%%f2" : : "p" (l), "i" OFFSETOF(av_alist,args[1]));
      __asm__("ldd [%0+%1],%%f2" : : "p" (l), "i" OFFSETOF(av_alist,args[1]));
    if (l->darg_mask & (1<<2))
      __asm__("ldd %1(%0),%%f4" : : "p" (l), "i" OFFSETOF(av_alist,args[2]));
      __asm__("ldd [%0+%1],%%f4" : : "p" (l), "i" OFFSETOF(av_alist,args[2]));
    if (l->darg_mask & (1<<3))
      __asm__("ldd %1(%0),%%f6" : : "p" (l), "i" OFFSETOF(av_alist,args[3]));
      __asm__("ldd [%0+%1],%%f6" : : "p" (l), "i" OFFSETOF(av_alist,args[3]));
    if (l->darg_mask & (1<<4))
      __asm__("ldd %1(%0),%%f8" : : "p" (l), "i" OFFSETOF(av_alist,args[4]));
      __asm__("ldd [%0+%1],%%f8" : : "p" (l), "i" OFFSETOF(av_alist,args[4]));
    if (l->darg_mask & (1<<5))
      __asm__("ldd %1(%0),%%f10" : : "p" (l), "i" OFFSETOF(av_alist,args[5]));
      __asm__("ldd [%0+%1],%%f10" : : "p" (l), "i" OFFSETOF(av_alist,args[5]));
    if (l->darg_mask & (1<<6))
      __asm__("ldd %1(%0),%%f12" : : "p" (l), "i" OFFSETOF(av_alist,args[6]));
      __asm__("ldd [%0+%1],%%f12" : : "p" (l), "i" OFFSETOF(av_alist,args[6]));
    if (l->darg_mask & (1<<7))
      __asm__("ldd %1(%0),%%f14" : : "p" (l), "i" OFFSETOF(av_alist,args[7]));
      __asm__("ldd [%0+%1],%%f14" : : "p" (l), "i" OFFSETOF(av_alist,args[7]));
    if (l->darg_mask & (1<<8))
      __asm__("ldd %1(%0),%%f16" : : "p" (l), "i" OFFSETOF(av_alist,args[8]));
      __asm__("ldd [%0+%1],%%f16" : : "p" (l), "i" OFFSETOF(av_alist,args[8]));
    if (l->darg_mask & (1<<9))
      __asm__("ldd %1(%0),%%f18" : : "p" (l), "i" OFFSETOF(av_alist,args[9]));
      __asm__("ldd [%0+%1],%%f18" : : "p" (l), "i" OFFSETOF(av_alist,args[9]));
    if (l->darg_mask & (1<<10))
      __asm__("ldd %1(%0),%%f20" : : "p" (l), "i" OFFSETOF(av_alist,args[10]));
      __asm__("ldd [%0+%1],%%f20" : : "p" (l), "i" OFFSETOF(av_alist,args[10]));
    if (l->darg_mask & (1<<11))
      __asm__("ldd %1(%0),%%f22" : : "p" (l), "i" OFFSETOF(av_alist,args[11]));
      __asm__("ldd [%0+%1],%%f22" : : "p" (l), "i" OFFSETOF(av_alist,args[11]));
    if (l->darg_mask & (1<<12))
      __asm__("ldd %1(%0),%%f24" : : "p" (l), "i" OFFSETOF(av_alist,args[12]));
      __asm__("ldd [%0+%1],%%f24" : : "p" (l), "i" OFFSETOF(av_alist,args[12]));
    if (l->darg_mask & (1<<13))
      __asm__("ldd %1(%0),%%f26" : : "p" (l), "i" OFFSETOF(av_alist,args[13]));
      __asm__("ldd [%0+%1],%%f26" : : "p" (l), "i" OFFSETOF(av_alist,args[13]));
    if (l->darg_mask & (1<<14))
      __asm__("ldd %1(%0),%%f28" : : "p" (l), "i" OFFSETOF(av_alist,args[14]));
      __asm__("ldd [%0+%1],%%f28" : : "p" (l), "i" OFFSETOF(av_alist,args[14]));
    if (l->darg_mask & (1<<15))
      __asm__("ldd %1(%0),%%f30" : : "p" (l), "i" OFFSETOF(av_alist,args[15]));
      __asm__("ldd [%0+%1],%%f30" : : "p" (l), "i" OFFSETOF(av_alist,args[15]));
  }

  if (arglen > 6) {
    /* alloca space is separated from the extra outgoing args area by
     * the area for compiler temps (addressable with postive offsets from sp)
     * but they shouldn't be needed for this function, so, effectively,
     * space returned by alloca is safe to use as the area for extra args.
     */
    void *extra_args_area = __builtin_alloca(sizeof(__avword) * (arglen - 6));
    __avword *argframe = (__avword *)extra_args_area - 6;
#if 0
    /* "by construction" */
    assert(argframe == (void *)((unsigned long)(sp + 16)+2047));
#endif
  {

    int i;
    for (i = 6; i < arglen; i++)	/* push excess function args */
      argframe[i] = l->args[i];
  }

					/* call function with 1st 6 args */
  i = ({ __avword iret;	/* %o0 */
  i = ({ register __avword iret __asm__ ("%o0");
         iret = (*l->func)(l->args[0], l->args[1], l->args[2],
			   l->args[3], l->args[4], l->args[5]);
         asm ("nop");	/* struct returning functions skip this instruction */
         asm __volatile__("nop");	/* struct returning functions skip this instruction */
         iret;
       });

  /* save return value */
  if (l->rtype == __AVvoid) {
  } else
  if (l->rtype == __AVword) {
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