From fb26edf531688dcc6852a997c77a96a7232c42f4 Mon Sep 17 00:00:00 2001 From: ram <ram> Date: Tue, 10 Jul 1990 10:23:07 +0000 Subject: [PATCH] Fixed up DUMP-FLOAT to make 0d0 be dumped so that it will be loaded as a double float. --- compiler/dump.lisp | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/compiler/dump.lisp b/compiler/dump.lisp index f8c1c587d..8b1e0a5d6 100644 --- a/compiler/dump.lisp +++ b/compiler/dump.lisp @@ -7,7 +7,7 @@ ;;; Scott Fahlman (FAHLMAN@CMUC). ;;; ********************************************************************** ;;; -;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/dump.lisp,v 1.10 1990/06/26 06:27:44 wlott Exp $ +;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/dump.lisp,v 1.11 1990/07/10 10:23:07 ram Exp $ ;;; ;;; This file contains stuff that knows about dumping FASL files. ;;; @@ -748,17 +748,20 @@ ;;; Compute how many bytes it will take to represent signed integer N. (defun compute-bytes (n) - (truncate (+ (integer-length n) 8) 8)) + (ceiling (1+ (integer-length n)) 8)) (defun dump-float (x file) - (multiple-value-bind (f exponent sign) (decode-float x) - (let ((mantissa (truncate (scale-float (* f sign) (float-precision f))))) - (dump-fop 'lisp::fop-float file) - (dump-byte (1+ (integer-length exponent)) file) - (quick-dump-number exponent (compute-bytes exponent) file) - (dump-byte (1+ (integer-length mantissa)) file) - (quick-dump-number mantissa (compute-bytes mantissa) file)))) - + (let ((digits (float-digits x))) + (multiple-value-bind (sig exp sign) + (integer-decode-float x) + (let ((significand (* sig #-new-compiler (truncate sign) + #+new-compiler sign)) ;### i-d-f bug. + (exponent (+ exp digits))) + (dump-fop 'lisp::fop-float file) + (dump-byte (1+ (integer-length exponent)) file) + (quick-dump-number exponent (compute-bytes exponent) file) + (dump-byte (1+ digits) file) + (quick-dump-number significand (ceiling (1+ digits) 8) file))))) ;;;; Symbol Dumping: -- GitLab