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   1  # $Id$
   2
   3 # define call_push(x)                                                   \
   4         lda   $16, 0(x);        /* copy x to first argument register */ \
   5         jsr   $26, GC_push_one; /* call GC_push_one, ret addr in $26 */ \
   6         ldgp  $gp, 0($26)       /* restore $gp register from $ra */
   7
   8         .text
   9         .align  4
  10         .globl  GC_push_regs
  11         .ent    GC_push_regs 2
  12 GC_push_regs:
  13         ldgp    $gp, 0($27)             # set gp from the procedure value reg
  14         lda     $sp, -32($sp)           # make stack frame
  15         stq     $26, 8($sp)             # save return address
  16         .mask   0x04000000, -8
  17         .frame  $sp, 16, $26, 0
  18
  19  #      call_push($0)    # expression eval and int func result
  20
  21  #      call_push($1)    # temp regs - not preserved cross calls
  22  #      call_push($2)
  23  #      call_push($3)
  24  #      call_push($4)
  25  #      call_push($5)
  26  #      call_push($6)
  27  #      call_push($7)
  28  #      call_push($8)
  29
  30         call_push($9)    # Saved regs
  31         call_push($10)
  32         call_push($11)
  33         call_push($12)
  34         call_push($13)
  35         call_push($14)
  36
  37         call_push($15)   # frame ptr or saved reg
  38
  39  #      call_push($16)   # argument regs - not preserved cross calls
  40  #      call_push($17)
  41  #      call_push($18)
  42  #      call_push($19)
  43  #      call_push($20)
  44  #      call_push($21)
  45
  46  #      call_push($22)   # temp regs - not preserved cross calls
  47  #      call_push($23)
  48  #      call_push($24)
  49  #      call_push($25)
  50
  51  #      call_push($26)   # return address - expression eval
  52  #      call_push($27)   # procedure value or temporary reg
  53  #      call_push($28)   # assembler temp - not presrved
  54         call_push($29)   # Global Pointer
  55  #      call_push($30)   # Stack Pointer
  56
  57         ldq     $26, 8($sp)             # restore return address
  58         lda     $sp, 32($sp)            # pop stack frame
  59         ret     $31, ($26), 1           # return ($31 == hardwired zero)
  60         .end    GC_push_regs