[openfirmware] r1574 - ofw/core

[svn at openfirmware.info]

Author: wmb
Date: 2009-12-11 07:19:28 +0100 (Fri, 11 Dec 2009)
New Revision: 1574

Modified:
   ofw/core/filecmds.fth
Log:
OFW core - added $read-file word.


Modified: ofw/core/filecmds.fth
===================================================================
--- ofw/core/filecmds.fth	2009-12-11 06:18:41 UTC (rev 1573)
+++ ofw/core/filecmds.fth	2009-12-11 06:19:28 UTC (rev 1574)
@@ -669,6 +669,20 @@
    r> close-dev                              ( len )
    load-base swap list
 ;
+
+\ Read entire file into allocated memory
+: $read-file  ( filename$ -- true | data$ false )
+   open-dev  ?dup  0=  if  true exit  then  >r  ( r: ih )
+   " size" r@ $call-method  drop   ( len r: ih )
+   dup alloc-mem  swap             ( adr len r: ih )
+   2dup " read" r@ $call-method    ( adr len actual r: ih )
+   r> close-dev                    ( adr len actual )
+   over <>  if                     ( adr len )
+      free-mem  true exit
+   then                            ( adr len )
+   false
+;
+
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