Jonathan Graham Harston
Personal Curriculum Vitae Portfolio Circuit Diagrams Coding & Commenting Disassemblies Documentation Maps Plans Reports Family Tree Maps Property for rent Publications Environment Fungus People I know Wikipedia entries Education: Myers Grove School Stirling University Sheffield College Website: mdfs.net Photos Others: Graph Listing	Circuit Diagrams 2008 emr.gif - EMR BBC MIDI interface 2007 notes1.gif - Notes for a 6809 CoProcessor 2005 28to32.gif - 28-pin to 32-pin ROM adaptor 2005 chameleon.gif - Corrected BBC Chameleon interface 2004 wdv4.gif - BBC IDE wiring diagram 2004 pcbv4.gif - BBC IDE interface PCB 2004 cdv4.gif - BBC IDE interface 1992 Joy2IC.gif - Spectrum joystick interface 1992 Joy1IC.gif - Spectrum joystick interface 1991 cdv1b.gif - BBC Border Colour Module 1989/2004 jgh1.gif - JGH BBC MIDI interface 1987 IF1.gif - Spectrum Interface 1 1987 ExtKbd.gif - External Spectrum keyboard 1987 Key+Joy.gif - Spectrum keyboard/joystick interface 1986/2010 1MbMem.gif - Z80 1M Memory Management Unit 1986/2003 ROMs.gif - Z80 ROMs 1986/2003 ROM4.gif - 4-bank External Spectrum ROM 1986/2003 ROM1.gif - 1-bank External Spectrum ROM 1985/1987 Backplane - Spectrum Backplane 1985/1987 Ctrl2.gif - Spectrum Backplane Coding and Commenting Examples I have a natural talent and aptitude for writing I/O and device drivers. 2012 map.php - PHP map browser (src) 2011 list.php - Whitby Maps PHP browser (src) 2011 403.php - 403 error PHP directory index page (src) 2011 index.php - Simple PHP directory listing (src) 2011 CRC16.htm - Sample CRC-16 calculation code 2011 CRC32.htm - Sample CRC-32 calculation code 2010 Tube/Serial - Serial Tube client and filing system 2008 6809/Client.src - 6809 Tube client 2008 CUBE/EURO414.src - CUBE EuroBeeb host 2007 Z80/OswFF.src - OSWORD &FF Tube transfer code 2006 Tube/Client.src - 6502 Tube client 2006 CoPro/Client.src - 65C12 Tube client 2006 65Tube/Code064.src - 65C12 65Tube client 2006 SmallSYS/BIOS.ASM - Small ROMable CPM BIOS 2005 PDP11 BBC BASIC - PDP-11 BBC BASIC 2005 Serial/6502.src - 6502 Serial Tube client 2004 Spectrum/Info.src - Microdrive file info 2004 Spectrum/Printer.s - Emulated Spectrum printer 2003-2007 System/C - 'C' programming libraries 2002 Spectrum/ROMBox.s - Emulated Spectrum ROMBox 2002 BBCBasic/Host40.src - Spectrum BBC BASIC host 1995 SerNet.s - Serial Networking device for Econet 1995 Serial/Z80.src - Z80 Serial Tube client 1993-2003 cZ80Tube - Z80 Emulator in 'C' 1992 Flash Chat - Chinese update to Flash Chat 1992 ZNOS/SJCCP.SRC - Replacement CP/M CCP 1990-2005 C/Lib - C libraries 1990 Z80/Client.src - Z80 Tube client 1989-2011 HADFS Source - HADFS filing system 1989/2010 MIDI - BBC MIDI driver 1989 Z80CONV - Convert Acorn CP/M BBC BASIC for BBC Tube. 1989 PDP11/Client.src - PDP11 Tube client 1988 JGH/FREE.SRC - CPM FREE command 1988 TTXT2.s - Spectrum teletext display 1988 TTXT1.s - Spectrum teletext display 1986 XtnKeybd.s - Spectrum extended keyboard 1986 ThickChr.s - Spectrum thick characters command 1986 CharMake.s - Spectrum thick characters 1986 RamDisk.s - Spectrum RAMDisk 1986 SAVE.s - Spectrum blocked SAVE command 1986 LOAD.s - Spectrum blocked LOAD command 1986 Buffer.s - Spectrum buffered load and save 1986 Blocks.s - Spectrum blocked load and save 1985-1986 PrintOut - Windowed, multisized Spectrum Printout code 1985/2004/2012 Harston/Patch.src - JGH Spectrum ROM 1985 Printout - Fast Spectrum Printout code 1985-2004 DefChar - BBC font editor 1985-1986 DefChar - Spectrum font editor 1985 ExtCat2.src - Spectrum extended catalogue 1985 JSW48.asm - Jet Set Willy 1985 TapeBlk.s - Blocked Spectrum tape formatter 1985 JSWPRINT.s - Display JSW screen 1985-2010 BLib - BBC BASIC programming libraries 1984-2003 DefRoom - Jet Set Willy room editor Disassembly Examples 2007 BBC/Host230.lst - BBC Tube host 2005 M128/Host.lst - Master128 Tube host 1998 BBC/Host100.lst - BBC Tube host Documentation Examples 1985-2010 BLib/Docs - BBC BASIC libraries 2000-2010 BeebWiki - BBC Computer Wiki 2008 PDP11CoPro - PDP11 CoProcessor Technical Reference 1990-2005 C/Lib - C libraries 1992 HADFSMan - HADFS Reference Manual Projects - Various projects Comp - Various computer documentation BBC FAQ - BBC Computer documentation Maps and Mapping 2012 Rillington - Proposed Rillington A64 bypass 2011 SouthRdShops2011.gif - South Road Shops 2011 1995-2010 CityMaps - Sheffield Election Maps 2008 Rockall - Rockall 2008 SouthRdShops2008.gif - South Road Shops 2008 2008 HighStones.gif - High Stones Round Walk 2006 Bridge2.gif - Claywheels Lane Bridge Layout 2006 Bridge.gif - Claywheels Lane Bridge 2006 Bypass.gif - Claywheels Lane Bypass 2005 Hills - Seven Hills of Sheffield 2005 Borders - Sheffield Borders 2005 Cuthbert50k.gif - Cuthbert Bank 2005 Cuthbert.gif - Cuthbert Bank 2005 stony.htm - Stony Walk 2005 SouthRdCentre.gif - South Road 2005 SecondarySm.gif - Sheffield Secondary Schools 2004 ParlReview - Sheffield Parliamentary Review 2002 WardReview - Sheffield Ward Review 2000 SouthRd110.gif - South Road version 1.10 1996 SouthRd100.gif - South Road version 1.00 1989-2009 YofWhitby - Yards of Whitby 1985 Inner/50k.gif - Inner Ring Road North Section 1985 Inner/10k.gif - Inner Ring Road North Section 1985 North3.gif - Inner Ring Road North Section 1985 North2.gif - Inner Ring Road North Section 1985 North1.gif - Inner Ring Road North Section 1985 North.gif - Inner Ring Road North Section OSGrid - OSGB Grid Maps ChanIsles - Channel Islands DonValley - Don Valley Railway maps - Sheffield Ward Maps Plans 2010 2a-1f.gif - 2A Grape Lane 2010 TheElmsGF.gif - The Elms 2010 TheElms1F.gif - The Elms 2009 CammSt/70a.gif - 70A Camm Street 2009 CammSt/70.gif - 70 Camm Street 2009 183gard.gif - 183 Freedom Road 2008 356b.gif - 356B South Road 2008 358shop.gif - 358 South Road 2008 356a.gif - 356A South Road 2007 358s07.gif - 358 South Road 2004 187base.gif - 187 Freedom Road 2000 356c00.gif - 356C South Road 1999 356c99.gif - 356C South Road 1999 356a99.gif - 356A South Road 1986/88 162-2f.gif - 162 Church Street 1986/88 162-1f.gif - 162 Church Street 1986/88 162-gf.gif - 162 Church Street Reports 2008 Appeal163.doc Planning Appeal, 163 Church Street, Whitby 2007 1er mai 1707: Qui s'en souvient?, Genista Informations 2004 ParlReview - Sheffield Parliamentary Review 2002 WardReview - Sheffield Ward Review More election leaflets than I can remember