| 1 | \ ========== Copyright Header Begin ========================================== |
| 2 | \ |
| 3 | \ Hypervisor Software File: filecode.fth |
| 4 | \ |
| 5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 6 | \ |
| 7 | \ - Do no alter or remove copyright notices |
| 8 | \ |
| 9 | \ - Redistribution and use of this software in source and binary forms, with |
| 10 | \ or without modification, are permitted provided that the following |
| 11 | \ conditions are met: |
| 12 | \ |
| 13 | \ - Redistribution of source code must retain the above copyright notice, |
| 14 | \ this list of conditions and the following disclaimer. |
| 15 | \ |
| 16 | \ - Redistribution in binary form must reproduce the above copyright notice, |
| 17 | \ this list of conditions and the following disclaimer in the |
| 18 | \ documentation and/or other materials provided with the distribution. |
| 19 | \ |
| 20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 21 | \ may be used to endorse or promote products derived from this software |
| 22 | \ without specific prior written permission. |
| 23 | \ |
| 24 | \ This software is provided "AS IS," without a warranty of any kind. |
| 25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
| 28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR |
| 29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| 30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN |
| 31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
| 32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
| 33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
| 34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF |
| 35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 36 | \ |
| 37 | \ You acknowledge that this software is not designed, licensed or |
| 38 | \ intended for use in the design, construction, operation or maintenance of |
| 39 | \ any nuclear facility. |
| 40 | \ |
| 41 | \ ========== Copyright Header End ============================================ |
| 42 | \ filecode.fth 2.9 02/05/02 |
| 43 | \ Copyright 1985-1990 Bradley Forthware |
| 44 | \ Copyright 1990-2002 Sun Microsystems, Inc. All Rights Reserved |
| 45 | \ Copyright Use is subject to license terms. |
| 46 | |
| 47 | \ Code words to support the file system interface - Sunrise versions |
| 48 | |
| 49 | headerless |
| 50 | \ signed mixed mode addition (same as + on the Sunrise) |
| 51 | code ln+ (s n1 n2 -- n3 ) sp scr pop tos scr tos add c; |
| 52 | |
| 53 | \ &ptr is the address of a pointer. fetch the pointed-to |
| 54 | \ character and post-increment the pointer |
| 55 | |
| 56 | code @c@++ ( &ptr -- char ) |
| 57 | tos scr get \ Fetch the pointer |
| 58 | tos sc1 move \ Copy of the address |
| 59 | scr 0 tos ldub \ Get the byte |
| 60 | scr 1 scr add \ Increment the pointer |
| 61 | scr sc1 put \ Replace the pointer |
| 62 | c; |
| 63 | |
| 64 | \ &ptr is the address of a pointer. store the character into |
| 65 | \ the pointed-to location and post-increment the pointer |
| 66 | |
| 67 | code @c!++ ( char &ptr -- ) |
| 68 | tos scr get \ Fetch the pointer |
| 69 | sp sc1 pop \ char in sc1 |
| 70 | sc1 scr 0 stb \ Put the byte |
| 71 | scr 1 scr add \ Increment the pointer |
| 72 | scr tos put \ Replace the pointer |
| 73 | sp tos pop \ Fixup top of stack |
| 74 | c; |
| 75 | |
| 76 | \ "adr1 len2" is the longest initial substring of the string "adr1 len1" |
| 77 | \ that does not contain the character "char". "adr2 len1-len2" is the |
| 78 | \ trailing substring of "adr1 len1" that is not included in "adr1 len2". |
| 79 | \ Accordingly, if there are no occurrences of that character in "adr1 len1", |
| 80 | \ "len2" equals "len1", so the return values are "adr1 len1 adr1+len1 0" |
| 81 | |
| 82 | code split-string ( adr1 len1 char -- adr1 len2 adr1+len2 len1-len2 ) |
| 83 | \ char in tos |
| 84 | sp 0 /n* sc1 nget \ len1 |
| 85 | sp 1 /n* scr nget \ adr1 |
| 86 | sp 1 /n* sp sub \ Make room for extra return value |
| 87 | |
| 88 | scr sc1 scr add \ Point to end |
| 89 | %g0 sc1 sc3 sub \ Index counts up from -len1 |
| 90 | sc3 1 sc3 sub \ Account for pre-increment |
| 91 | |
| 92 | ahead |
| 93 | sc3 1 sc3 addcc \ Delay: Increment and test counter |
| 94 | begin |
| 95 | |
| 96 | tos sc2 cmp \ Compare to delimiter |
| 97 | = if annul \ Exit if delimiter found |
| 98 | sc3 1 sc3 addcc \ Delay: Increment and test counter |
| 99 | |
| 100 | sc1 sc3 sc1 add \ Compute len2 |
| 101 | sc1 sp 1 /n* nput \ .. and store on stack |
| 102 | |
| 103 | scr sc3 scr add \ Compute adr1+len2 |
| 104 | scr sp 0 /n* nput \ .. and store on stack |
| 105 | |
| 106 | %g0 sc3 tos sub \ Return len1-len2 |
| 107 | next |
| 108 | then |
| 109 | |
| 110 | but then |
| 111 | 0= until annul |
| 112 | scr sc3 sc2 ldub \ Delay: Get the next character |
| 113 | |
| 114 | \ The test character is not present in the input string |
| 115 | |
| 116 | scr sp 0 /n* nput \ Store adr1+len2 on stack |
| 117 | %g0 tos move \ Return rem-len=0 |
| 118 | c; |
| 119 | |
| 120 | headers |
| 121 | |
| 122 | nuser delimiter \ delimiter actually found at end of word |
| 123 | |
| 124 | nuser file |
| 125 | |
| 126 | :-h struct ( -- 0 ) 00 ;-h |
| 127 | |
| 128 | \ Run-time action for fields |
| 129 | code-field: dofield |
| 130 | \itc sp adec |
| 131 | tos sp put \ Push the tos register |
| 132 | \t16 apf scr lduh \ Get the structure member offset |
| 133 | \t32 apf scr ld \ Get the structure member offset |
| 134 | 'user file sc1 ld \ Get the structure base address |
| 135 | 64\ 'user file /l + sc2 ld |
| 136 | 64\ sc1 h# 20 sc1 sllx |
| 137 | 64\ sc2 sc1 sc1 or |
| 138 | sc1 scr tos add \ Return the structure member address |
| 139 | c; |
| 140 | |
| 141 | \ Assembles the code field when metacompiling a field |
| 142 | :-h file-field-cf ( -- ) dofield place-cf-t ;-h |
| 143 | |
| 144 | \ Metacompiler defining word for creating fields |
| 145 | :-h file-field \ name ( offset scrze -- offset' ) |
| 146 | " file-field-cf" header-t over |
| 147 | \t32-t l,-t |
| 148 | \t16-t w,-t |
| 149 | + ?debug |
| 150 | ;-h |