123 lines
3.3 KiB
Forth
123 lines
3.3 KiB
Forth
\ *****************************************************************************
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\ * Copyright (c) 2004, 2008 IBM Corporation
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\ * All rights reserved.
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\ * This program and the accompanying materials
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\ * are made available under the terms of the BSD License
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\ * which accompanies this distribution, and is available at
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\ * http://www.opensource.org/licenses/bsd-license.php
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\ *
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\ * Contributors:
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\ * IBM Corporation - initial implementation
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\ ****************************************************************************/
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STRUCT
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cell field romfs>file-header
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cell field romfs>data
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cell field romfs>data-size
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cell field romfs>flags
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CONSTANT /romfs-lookup-control-block
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CREATE romfs-lookup-cb /romfs-lookup-control-block allot
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romfs-lookup-cb /romfs-lookup-control-block erase
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: create-filename ( string -- string\0 )
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here >r dup 8 + allot
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r@ over 8 + erase
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r@ zplace r> ;
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: romfs-lookup ( fn-str fn-len -- data size | false )
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create-filename romfs-base
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romfs-lookup-cb romfs-lookup-entry call-c
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0= IF romfs-lookup-cb dup romfs>data @ swap romfs>data-size @ ELSE
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false THEN ;
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: ibm,romfs-lookup ( fn-str fn-len -- data-high data-low size | 0 0 false )
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romfs-lookup dup
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0= if drop 0 0 false else
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swap dup 20 rshift swap ffffffff and then ;
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\ FIXME For a short time ...
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: romfs-lookup-client ibm,romfs-lookup ;
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\ Fixme temp implementation
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STRUCT
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cell field romfs>next-off
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cell field romfs>size
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cell field romfs>flags
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cell field romfs>data-off
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cell field romfs>name
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CONSTANT /romfs-cb
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: romfs-map-file ( fn-str fn-len -- file-addr file-size )
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romfs-base >r
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BEGIN 2dup r@ romfs>name zcount string=ci not WHILE
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( fn-str fn-len ) ( R: rom-cb-file-addr )
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r> romfs>next-off dup @ dup 0= IF 1 THROW THEN + >r REPEAT
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( fn-str fn-len ) ( R: rom-cb-file-addr )
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2drop r@ romfs>data-off @ r@ + r> romfs>size @ ;
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\ returns address of romfs-header file
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: flash-header ( -- address | false )
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get-flash-base 28 + \ prepare flash header file address
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dup rx@ \ fetch "magic123"
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6d61676963313233 <> IF \ IF flash is not valid
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drop \ | forget address
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false \ | return false
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THEN \ FI
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;
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CREATE bdate-str 10 allot
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: bdate2human ( -- addr len )
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flash-header 40 + rx@ (.)
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drop dup 0 + bdate-str 6 + 4 move
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dup 4 + bdate-str 0 + 2 move
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dup 6 + bdate-str 3 + 2 move
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dup 8 + bdate-str b + 2 move
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a + bdate-str e + 2 move
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2d bdate-str 2 + c!
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2d bdate-str 5 + c!
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20 bdate-str a + c!
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3a bdate-str d + c!
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bdate-str 10
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;
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\ Look up a file in the ROM file system and evaluate it
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: included ( fn fn-len -- )
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2dup >r >r romfs-lookup dup IF
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r> drop r> drop evaluate
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ELSE
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drop ." Cannot open file : " r> r> type cr
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THEN
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;
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: include ( " fn " -- )
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parse-word included
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;
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: ?include ( flag " fn " -- )
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parse-word rot IF included ELSE 2drop THEN
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;
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: include? ( nargs flag " fn " -- )
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parse-word rot IF
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rot drop included
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ELSE
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2drop 0 ?DO drop LOOP
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THEN
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;
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\ List files in ROMfs
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: (print-romfs-file-info) ( file-addr -- )
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9 emit dup b 0.r 2 spaces dup 8 + @ 6 0.r 2 spaces 20 + zcount type cr
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;
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: romfs-list ( -- )
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romfs-base 0 cr BEGIN + dup (print-romfs-file-info) dup @ dup 0= UNTIL 2drop
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;
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