Keith
SC84-MCOS-from-disassembly-source.txtThe OCR bytes disassembled and reverse engineered into a form that re-assembles into the OCR bytes.plain - 33.15 kB - 06/17/2022 at 22:32 |
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diff-memdump-bytes-and-OCR-bytes.txtDifferences between memdump bytes and OCR bytes.There are some, but not due to OCR errors. Probably due to self-modifying code. plain - 611.00 bytes - 06/17/2022 at 20:12 |
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SC84_MCOS_from_memory_dump.txtSource code recreated from hex data from a live memory dump.plain - 14.56 kB - 06/17/2022 at 20:05 |
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SC84_MCOS_from_memory_dump.txt.hexA hex file for comparison with the OCR bytes.hex - 5.51 kB - 06/17/2022 at 20:05 |
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SC84-MCOS-from-OCR-hex-source-txt.txtSource code recreated from hex data from OCR scans from newsletter. First 18 bytes disassemble to a copy-and-jump routine. Scraps of source code from various documents.plain - 19.37 kB - 06/17/2022 at 20:05 |
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SC84-MCOS-from-OCR-hex-source-txt.hexA hex file for comparison with the memory dump bytes.hex - 5.51 kB - 06/17/2022 at 20:05 |
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SC84-MCOS-hex-source.txt.lst.txtAdded .txt to filename so it can be read online.Not all browsers understand *.lst is a text file. plain - 161.92 kB - 06/17/2022 at 13:00 |
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wsovly1_ovr.binWordStar Overlay v3.00 1980 Micropro International - patched for SC84/SCIDOS (super-fast VDU access)octet-stream - 33.50 kB - 04/06/2021 at 21:28 |
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wsmsgs_ovr.binWordStar MSGS-Overlay v3.00 1980 Micropro International - patched for SC84/SCIDOS (super-fast VDU access)octet-stream - 24.00 kB - 04/06/2021 at 21:28 |
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ws_com.binWordStar v3.00 1980 Micropro International - patched for SC84/SCIDOS (super-fast VDU access)octet-stream - 15.75 kB - 04/06/2021 at 21:28 |
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mbasic_com.binBASIC-80 CP/M v 5.2 14-Jul-80 - Microsoftoctet-stream - 23.88 kB - 04/06/2021 at 21:26 |
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basic_com.binExpanded Disc Basic v 1.0d - SCITEXoctet-stream - 17.50 kB - 04/06/2021 at 21:24 |
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bas_com.binExtended Disc Basic v 2.2a - SCITEXoctet-stream - 11.50 kB - 04/06/2021 at 21:24 |
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seldsc_com.binRedefines format for drive B: to formats used by other systemsoctet-stream - 640.00 bytes - 04/06/2021 at 21:14 |
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rep_com.binA fast single drive copier using the Silicon Disc as intermediate media (ideal for mass copying/distributing discs)octet-stream - 1.00 kB - 04/06/2021 at 21:11 |
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sysgen_com.binCopies/clones the SCIDOS system tracks to another discoctet-stream - 640.00 bytes - 04/06/2021 at 21:09 |
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sub_com.binExecutes a series of commands without operator involvement as per xxx.sub file (similar to DOS batch xxx.bat)octet-stream - 1.00 kB - 04/06/2021 at 21:07 |
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stat_com.binDisplays free space of currently logged discs,as well as number of files etc.octet-stream - 3.88 kB - 04/06/2021 at 21:05 |
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p_com.binSend pre-defined control sequences to EPSON printersoctet-stream - 1.00 kB - 04/06/2021 at 21:03 |
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pip_com.bin"Peripheral Interchange Program": transfers data between different I/O channels (e.g. transfer files between discs)octet-stream - 5.75 kB - 04/06/2021 at 21:01 |
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debug_com.binCheck/debug/correct .com programs by single-step or by defining break-points or pass-pointsoctet-stream - 6.88 kB - 04/06/2021 at 20:58 |
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edit_com.binEdit disc sectors in SCIDOS environmentoctet-stream - 4.00 kB - 04/06/2021 at 20:57 |
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ddisc5_com.binDirect read or write disc access tool from system memoryoctet-stream - 512.00 bytes - 04/06/2021 at 20:55 |
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dcopy540_com.binVery fast disc to disc copier/cloner 5,25" DD 40 trackoctet-stream - 1.25 kB - 04/06/2021 at 20:53 |
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dcopy5_com.binVery fast disc to disc copier/cloner 5,25" DD 80 trackoctet-stream - 1.25 kB - 04/06/2021 at 20:53 |
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flush_com.binInitialises (formats) the Silicon Disc drive E: (it actually clears the directory area needed after power-on)octet-stream - 256.00 bytes - 04/06/2021 at 20:50 |
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df51_com.binFormat and check single track 5,25" DD floppy discoctet-stream - 768.00 bytes - 04/06/2021 at 20:48 |
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dform540_com.binFormat and check 5,25" DD 40 track floppy discoctet-stream - 768.00 bytes - 04/06/2021 at 20:47 |
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dform5_com.binFormat and check 5,25" DD 80 track floppy discoctet-stream - 768.00 bytes - 04/06/2021 at 20:46 |
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scidos_doc.txtSCIDOS operating system manual - version 2.1Dplain - 42.12 kB - 04/06/2021 at 20:44 |
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20210324 SCIDOS Floppy System tracks 0 and 1 v2.txtHexdump of the 2 system tracks containing bootstrap and SCIDOS with description of the actual boot sequence.plain - 53.44 kB - 03/24/2021 at 11:29 |
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20210324 Active SCIDOS and MCOS memory dump.txtMemory dump of working system indicating memory locations of SCIDOS BDOS and MCOS.plain - 42.69 kB - 03/24/2021 at 11:07 |
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SC84-VDU-font.txtSource code will assemble the font ROM data.Verified - creates same data as original ROM. text/plain - 55.78 kB - 03/22/2021 at 20:53 |
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JPEG Image - 1.05 MB - 03/20/2021 at 11:50 |
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JPEG Image - 1.51 MB - 03/20/2021 at 11:50 |
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JPEG Image - 1.41 MB - 03/20/2021 at 10:17 |
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JPEG Image - 1.31 MB - 03/20/2021 at 10:17 |
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JPEG Image - 1.06 MB - 03/20/2021 at 10:17 |
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SCITEX BASIC 1 with OCR.pdfBASIC manual 1, dated 1982Adobe Portable Document Format - 727.71 kB - 03/19/2021 at 13:56 |
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SCITEX BASIC 2 with OCR.pdfBASIC manual 2, dated 1984Adobe Portable Document Format - 487.85 kB - 03/19/2021 at 13:56 |
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SC84_VDU_ChrGen_eprom.binCopy of original EPROM (working version on VDU card)octet-stream - 4.00 kB - 03/19/2021 at 10:38 |
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SC84_CPU_MCOS_eprom.binCopy of original EPROM (working version on CPU card).Diverges from the hex dump in newsletter volume 1 number 2 at location 65B hex. octet-stream - 8.00 kB - 03/19/2021 at 10:38 |
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SC84 newsletter volume 1 number 2.html.zipSC84 newsletter volume 1 number 2, converted to html.It has a hex dump of the MCOS firmware! :-) Zip Archive - 389.60 kB - 03/17/2021 at 16:26 |
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Wireless-World-1985-10-pages-35-36-and-93.pdfHalf-megabyte memory for SC84Adobe Portable Document Format - 206.28 kB - 03/17/2021 at 15:36 |
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Wireless-World-1984-05-pages-37-40-and-51.pdfSC84 part 1Adobe Portable Document Format - 401.49 kB - 05/31/2020 at 18:23 |
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Wireless-World-1984-06-pages-39-42.pdfSC84 part 2Adobe Portable Document Format - 404.96 kB - 05/31/2020 at 18:23 |
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Wireless-World-1984-09-pages-51-53-and-63.pdfSC84 construction tipsAdobe Portable Document Format - 396.05 kB - 05/31/2020 at 18:23 |
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MK3801_datasheet_scans.zipMostek MK3801 datasheet scansZip Archive - 2.42 MB - 07/03/2020 at 00:31 |
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SC84 computer
Collection of information and attempts to recreate the firmware