Dragon 32 - 64K Upgrade - Revision history

Polluks: /* Flex versus OS9. */

2021-09-29T22:10:37Z

‎Flex versus OS9.

Alastair: OCR/Typo corrections. (No doubt many 1/l/i errors still exist.)

2019-09-02T20:05:34Z

OCR/Typo corrections. (No doubt many 1/l/i errors still exist.)

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Admin at 09:35, 17 July 2019

2019-07-17T09:35:10Z

Jedie at 14:49, 5 August 2014

2014-08-05T14:49:21Z

Admin at 08:16, 2 April 2009

2009-04-02T08:16:37Z

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Admin at 07:32, 2 April 2009

2009-04-02T07:32:20Z

Admin at 07:21, 2 April 2009

2009-04-02T07:21:51Z

Admin at 07:20, 2 April 2009

2009-04-02T07:20:24Z

Admin at 07:18, 2 April 2009

2009-04-02T07:18:13Z

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Admin: Created page with '(Preliminary Version, 1st Revision - Sept. 1985) '''Upgrading Dragon 32s to 64k of RAM''' by R.W.Hall, National Dragon Users Group. '''Disclaimer'''. Although every care has b...'

2009-04-01T23:29:02Z

Created page with '(Preliminary Version, 1st Revision - Sept. 1985) '''Upgrading Dragon 32s to 64k of RAM''' by R.W.Hall, National Dragon Users Group. '''Disclaimer'''. Although every care has b...'

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@@ Line 398: / Line 398: @@
 or Flex; (NB OS9 is not available for Premier 'De1ta' disk systems).
-Both Compusense Flex and Dragon Data 0S9 operating systems will work with an
+Both Compusense Flex and Dragon Data OS9 operating systems will work with an
 upgraded machine (provided you've done the decoder mod.!) - however, whilst Flex
-will boot up straightaway, a slightly more roundabout method is needed for 0S9,
+will boot up straightaway, a slightly more roundabout method is needed for OS9,
 because the absence of an RS232 port at FFO4-8 causes the bootstrap routine to
 hang up. To get round this, proceed as follows:-
@@ Line 415: / Line 415: @@
 A brief comparison of the advantages of the two systems may be useful.:-
-Flex is structurally simpler than 0S9, being essentially a single-user, single
+Flex is structurally simpler than OS9, being essentially a single-user, single
 task operating system of mid 70's vintage; it has been described by Mike James
 (in ‘The 6809 Companion*) as 'almost without argument the standard operating system for the 6800 and certainly the best single-user operating system for the
-'. By contrast, 0S9 is rather complex, being multi—user and multitasking;
+'. By contrast, OS9 is rather complex, being multi—user and multitasking;
 the multi-user facility is largely academic for Dragon users, and the main use
 of multi-tasking is to run a 'background job' to the printer whilst proceeding
@@ Line 425: / Line 425: @@
 but Compusense decided not to implement it on the Dragon for rather purist
 reasons). The Flex system comes with a 5l oy 24 character set, with a facility
-for windows; the 5l by 24. character—set is optional in 0S9 (type 'G05l' to get
+for windows; the 5l by 24. character—set is optional in OS9 (type 'G05l' to get
 it) but when it is installed, there is only about 40k of userspace free, as
 against 48k for Flex. where OS9 scores is on the availability of cheap(ish)
 software - even before the recent price cuts by Touchmaster and Cotswold
-Computers the 0S9 packages were more attractively priced that their Flex
+Computers the OS9 packages were more attractively priced that their Flex
 counterparts, and with the recent dramatic price reductions this is now even
 more true. (This is rather paradoxical, since one of the claimed advantages for
@@ Line 437: / Line 437: @@
 OS9), and a wordprocessor. The assembler is quite nice (it allows 'macro's'),
 but not perfect (eg. it doesn't optimise the code for PC-relative forward
-references ); the editor is an oldfashioned line—editor, as is the the 0S9 one;
+references ); the editor is an oldfashioned line—editor, as is the the OS9 one;
 DBASIC is essentially a copying-over of the Microsoft ROM into RAM it has its
-uses but has none of the speed or aids to structured—programming of 0S9's
+uses but has none of the speed or aids to structured—programming of OS9's
 BASICO9. (And I haven't tried the Flex word-processor, but this is written using
 OS9 Stylograph). Overall, I feel that the Flex Editor/Assembler is a very powerful package for developing machine—code programs, but OS9 has more to offer
@@ Line 445: / Line 445: @@
 the end of the day it's the old tale of horses for courses - why not play safe
 and buy both??!!!
 == The Future - 256k? ==

@@ Line 242: / Line 242: @@
 socket in ICl6.
-d) Set the jumpers to l,4,5,8,l0
+d) Set the jumpers to l,4,6,8,l0
 e) After checking all voltages and lines, install the 8 new memory chips in IC1-

← Older revision		Revision as of 14:49, 5 August 2014
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		+	[[Category:Documentation]] [[Category:Hardware]]

@@ Line 762: / Line 762: @@
 {|{{PrettyTable|width: 700px; font-size: 2em;}}
 |''BASIC''||''ASSEMBLER''||''Comment''
 |10 'FLEXIT 8-MAR-85
 |-
 |20 DATA 0D,6F ||Start TST $6F ||Cheek ouput device
 |-
-DATA 27,03 BEQ SCRN If 0 ir's O/P to screen
+|30 DATA 27,03 ||BEQ SCRN ||If 0 ir's O/P to screen
-DATA 7E,D9, I7 JMP IID917 If anything else send to DOS hack
+|-
-DATA 32,62 SCRN LEAS 2,5 Drop rerurn ciddress off stuck
+|40 DATA 7E,D9,17 ||JMP $D917 ||If anything else send to DOS hack
-DATA 34,7+ PSHS ><,Y,A,B,U,DP,CC
+|-
-~ Z0 DATA IA,50 ORCC E350 IOF
+|50 DATA 32,62 ||SCRN LEAS 2,S ||Drop return address off stack
-DATA Is/,FF,DF STA STFFDF Map mode I
+|-
-DATA 81,0D CMPA £$0D CRLF?
+|60 DATA 34,7F ||PSHS X,Y,A,B,U,DP,CC
-DATA 27,0A BEQ CRLF
+|-
-DATA BD,CD,l2 JSR SECDI2 Char O/P
+|70 DATA 1A,50 ||ORCC #$50 ||IOF
-DATA B7,FF,DE FINISH STA SFFDE Map mode O
+|-
-DATA BD,07 BSR RESET
+|80 DATA B7,FF,DF ||STA $FFDF ||Map mode 1
-DATA 35,EF PULS ><,Y,A,B,U,DP,CC,PC
+|-
-DATA BD,(`D,24 CRLF JSR 1£CD24
+|90 DATA 81,0D ||CMPA #$0D ||CRLF?
-I60 DATA 20,F4 BRA FINISH
+|-
-'CHANGE \/DG PAGE
+|100 DATA 27,0A ||BEQ CRLF
-DATA 34,02 RESET PSHS A
+|-
-I90 DATA B6,F0 LDA ESFO
+|110 DATA BD,CD,l2 ||JSR $CD12 ||Char O/P
-DATA B/,FF,22 STA SFF22 Ser VDG mode
+|-
-DATA B7,FF,C5 STA $FFC5 Now set
+|120 DATA B7,FF,DE ||FINISH STA $FFDE ||Map mode 0
-DATA B7, FF,C3 STA BFFC3 VDG ·
+|-
-DATA P7,FF,C0 STA SFFC0 Base puge
+|130 DATA 8D,07 ||BSR RESET
-DATA B7, FF, D3 STA SFFD3 to
+|-
-DATA B7,FF,DI STA $FFD1 $E600
+|140 DATA 35,FF ||PULS X,Y,A,B,U,DP,CC,PC
-DATA B7,FF,CF STA SFFCF which is where
+|-
-DATA B7,FF,CC STA $FFCC the FLEX V
+|150 DATA BD,CD,24 ||CRLF JSR $CD24
-DATA B7,FF,CA STA $FFCA HIRES
+|-
-DATA B7,FF,C9 STA $FFC9 rextscreen __
+|160 DATA 20,F4 ||BRA FINISH
-DATA B7,FF,(7 STA $FFC7 Iives VV
+|-
-DATA 35,82 PULS A, PC AII done
+|170 'CHANGE VDG PAGE
-‘ '
+|-
-CLEAR 500
+|180 DATA 34,02 ||RESET PSHS A
 PRINT"fIexir here":PRINT"GI\/E ME A HOLE TO LIVE IN";; INPUT BA
 IF BAX100 GOTO 360 ELSE BA=512

@@ Line 759: / Line 759: @@
+'''PROGRAM 2.'''
+{|{{PrettyTable|width: 700px; font-size: 2em;}}
+|''BASIC''||''ASSEMBLER''||''Comment''
+|10 'FLEXIT 8-MAR-85
+|-
-LASIC ASSEMBLEIL
+|20 DATA 0D,6F ||Start TST $6F ||Cheek ouput device
-'FLEXIT B-MAR-B5
+|-
 DATA 27,03 BEQ SCRN If 0 ir's O/P to screen
 DATA 7E,D9, I7 JMP IID917 If anything else send to DOS hack

@@ Line 685: / Line 685: @@
 |''BASIC''||''ASSEMBLER''||''Comment''
 |-
-|10 ‘MOVIT 23-JAN—84|
+|10 ‘MOVIT 23-JAN—84
 |-
-|20 DATA 34,7F |PSHS X,Y,A,B,DP,CC,U |Dump the lot
+|20 DATA 34,7F ||PSHS X,Y,A,B,DP,CC,U ||Dump the lot
 |-
-|30 DATA 1A,50 |ORCC #$50 |Interrupts off
+|30 DATA 1A,50 ||ORCC #$50 ||Interrupts off
 |-
-|40 DATA 8E,00,00 |LDX #0000 |Nasty impure instruction
+|40 DATA 8E,00,00 ||LDX #0000 ||Nasty impure instruction
 |-
-|50 DATA 10,8E,00,00 |LDY #0000 |And this
+|50 DATA 10,8E,00,00 ||LDY #0000 ||And this
 |-
-|60 DATA B7,FF,00 |STA $FF00 |Will be FFDF or FFDE
+|60 DATA B7,FF,00 ||STA $FF00 ||Will be FFDF or FFDE
 |-
-|70 DATA A6,80 |LDA ,X+ |Pick up Data
+|70 DATA A6,80 ||LDA ,X+ ||Pick up Data
 |-
-|80 DATA B7,FF,00 |STA $FF00 |Will be FFDE or FFDF
+|80 DATA B7,FF,00 ||STA $FF00 ||Will be FFDE or FFDF
 |-
-|90 DATA A7, A0 |STA ,Y+ |Dump Data
+|90 DATA A7, A0 ||STA ,Y+ ||Dump Data
 |-
-|100 DATA 8C,00,00 |CMPX #$0000 |Another modified address
+|100 DATA 8C,00,00 ||CMPX #$0000 ||Another modified address
 |-
-|110 DATA 2F,F1 |BLE L |if less go round loop
+|110 DATA 2F,F1 ||BLE L ||if less go round loop
 |-
-|120 DATA B7,FF,O0 |STA $FF00 |Final map mode here
+|120 DATA B7,FF,00 ||STA $FF00 ||Final map mode here
 |-
-|130 DATA 35,FF |PULS X,Y,A,B,DP,CC,U,PC |All done.
+|130 DATA 35,FF ||PULS X,Y,A,B,DP,CC,U,PC ||All done.
 |-
 |140 '