src/compiler/mips/show.lisp

   1 ;;;; temporary printing utilities and similar noise
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; This software is derived from the CMU CL system, which was
   7 ;;;; written at Carnegie Mellon University and released into the
   8 ;;;; public domain. The software is in the public domain and is
   9 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
  10 ;;;; files for more information.
  11
  12 (in-package "SB!VM")
  13
  14
  15 (define-vop (print)
  16   (:args (object :scs (descriptor-reg any-reg) :target nl0))
  17   (:results (result :scs (descriptor-reg)))
  18   (:save-p t)
  19   (:temporary (:sc any-reg :offset nl0-offset :from (:argument 0)) nl0)
  20   (:temporary (:sc any-reg :offset cfunc-offset) cfunc)
  21   (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
  22   (:vop-var vop)
  23   (:generator 100
  24     (let ((cur-nfp (current-nfp-tn vop)))
  25       (when cur-nfp
  26         (store-stack-tn nfp-save cur-nfp))
  27       (move nl0 object)
  28       (inst li cfunc (make-fixup "debug_print" :foreign))
  29       (inst jal (make-fixup "call_into_c" :foreign))
  30       (inst subu nsp-tn 16)
  31       (inst addu nsp-tn 16)
  32       (when cur-nfp
  33         (load-stack-tn cur-nfp nfp-save))
  34       (move result nl0))))