akcs.dnickel@hpcvbbs.UUCP (Derek S. Nickel) (02/24/91)
Included in this posting are two simple routines, ->HEX and HEX->.
These routines are very similar to Bill Wickes' ->ASC and ASC->, in fact
they are stripped-down versions of ->ASC and ASC->.
The differences are:
* No checksums are involved. This means you can 'create' objects
without having to figure out the checksum.
* No line-feeds. This means you don't have to figure out where they
go.
* Because no checksums are needed, be careful! Actually providing a
checksum can cause a Memory Lost - maybe not imeadiatly, but soon
after Garbage Collection.
* Do not include line-feeds, they can/will cause problems.
* For the most part these routines are for creating fairly small
objects, but can be used for larger objects.
* Also: these routines are for 'development'. When you're all done
building your program/object, use ->ASC to post it (please!)
* Any other differences are totally a figment of you imagination.
Contained below are Voyager listings and ->ASC strings for these
routines.
Derek S. Nickel
------------------------------------------------------------
80000: ; *** ->HEX ***
80000: 02D9D ! Program
80005: 1592D ; Clear current command and verify DEPTH >= 1
8000A: 03188 ; Internal DUP
8000F: 05944 ; Internal BYTES (non-ROM objects) -> (2:System
Binary,1:Binary Integer)
80014: 03244 ; Internal DROP
80019: 055DF ; ""
8001E: 032C2 ; Internal OVER
80023: 03E6F ; Internal multiply by 2 (1:System Binary)
80028: 61C1C ; allocate nibbles (2:sized object,1:System Binary)
8002D: 03223 ; Internal SWAP
80032: 02DCC ! Code
80037: 00065 ! 101 nibbles (next RPL at 8009C)
8003C: 8F14660 GOSBVL 06641 ; MC: pop stk1 (System Binary)
; into A.A
80043: CC A=A-1 A
80045: 8FB9760 GOSBVL 0679B ; MC: save D0,D1,B,D (uses
; C,D0), clear carry
8004C: D8 B=A A
8004E: 143 A=DAT1 A
80051: 130 D0=A
80054: 169 D0=D0+ 10
80057: 174 D1=D1+ 5
8005A: 143 A=DAT1 A
8005D: 131 D1=A
80060: AE2 C=0 B
80063: 15F0 C=DAT1 1
80067: 8082103 LAHEX 30 ! "0"
8006E: A62 C=C+A B
80071: 8082193 LAHEX 39 ! "9"
80078: 9EEC0 ?A>=C B
GOYES 80087
8007D: 8082170 LAHEX 07 ! "."
80084: A62 C=C+A B
80087: 14C DAT0=C B
8008A: 161 D0=D0+ 2
8008D: 170 D1=D1+ 1
80090: CD B=B-1 A
80092: 5DC GONC 80060
80095: 8D34150 GOVLNG 05143 ; MC: restore D,B,D1,D0 (C=D0),
; clear carry and continue RPL
. . . . . . ! End of Code
8009C: 60F9B ; drop level two object
800A1: 0312B ! End Marker
%%HP: T(3)A(R)F(.);
"D9D20D2951881304495044230FD5502C230F6E30C1C1632230CCD20560008F14
660CC8FB9760D8143130169174143131AE215F08082103A6280821939EEC0808
2170A6214C161170CD5DC8D34150B9F06B2130D91B"
------------------------------------------------------------
80000: ; *** HEX-> ***
80000: 02D9D ! Program
80005: 1592D ; Clear current command and verify DEPTH >= 1
8000A: 18FB2 ; Check arguments for type
8000F: 0400D ; <3h>
80014: 02D9D ! Program
80019: 03188 ; Internal DUP
8001E: 05636 ; Internal SIZE (bytes) (1:String) -> System Binary
80023: 055DF ; ""
80028: 032C2 ; Internal OVER
8002D: 61C1C ; allocate nibbles (2:sized object,1:System Binary)
80032: 03223 ; Internal SWAP
80037: 02DCC ! Code
8003C: 00070 ! 112 nibbles (next RPL at 800AC)
80041: 8F14660 GOSBVL 06641 ; MC: pop stk1 (System Binary)
; into A.A
80048: CC A=A-1 A
8004A: 8FB9760 GOSBVL 0679B ; MC: save D0,D1,B,D (uses
; C,D0), clear carry
80051: D8 B=A A
80053: 143 A=DAT1 A
80056: 130 D0=A
80059: 169 D0=D0+ 10
8005C: 132 AD0EX
8005F: 130 D0=A
80062: 141 DAT1=A A
80065: 174 D1=D1+ 5
80068: 143 A=DAT1 A
8006B: 131 D1=A
8006E: 179 D1=D1+ 10
80071: AE2 C=0 B
80074: 14F C=DAT1 B
80077: 8082103 LAHEX 30 ! "0"
8007E: B62 C=C-A B
80081: 8082190 LAHEX 09 ! "."
80088: 9EEB0 ?A>=C B
GOYES 80096
8008D: 808207 LAHEX 7
80093: B62 C=C-A B
80096: 15C0 DAT0=C 1
8009A: 160 D0=D0+ 1
8009D: 171 D1=D1+ 2
800A0: CD B=B-1 A
800A2: 5EC GONC 80071
800A5: 8D34150 GOVLNG 05143 ; MC: restore D,B,D1,D0 (C=D0),
; clear carry and continue RPL
. . . . . . ! End of Code
800AC: 60F9B ; drop level two object
800B1: 0312B ! End Marker
800B6: 0312B ! End Marker
%%HP: T(3)A(R)F(.);
"D9D20D29512BF81D0040D9D208813063650FD5502C230C1C1632230CCD200700
08F14660CC8FB9760D8143130169132130141174143131179AE214F8082103B6
280821909EEB0808207B6215C0160171CD5EC8D34150B9F06B2130B21308086"