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About 9640News
- Birthday 01/04/1964
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Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
Yeah, I think a couple of those pages are within a handful of bytes. Do you have the LINK script with the extra EVAL statements at the end that shows where the page? You can use this link to get the updated LINKer command file at ABasic/!ABLINK.txt at main · BeeryMiller/ABasic (github.com) or the info you need is shown below. EVAL P7ENDB From file 166\CALL2-SRC EVAL P7ENDA From file 167\SYMBOL-SRC EVAL P6END From file 165\CALL1-SRC EVAL P8END From file 168\NUD2-SRC EVAL P2END From file 162\NUD1-SRC EVAL P4END From file 164\CMD-SRC -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
@InsaneMultitasker Hmm. I am wondering if it may have something to do with having two or more files open simultaneously and either getting an error, out of diskspace, or closing one file but not the other???? -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
@InsaneMultitasker Let me know with file updates when you are confident you have everything worked out. I wonder if you format a disk as DS/SD then format SS/DD, then update sector 0 so the disk thinks it is DS/DD whether that will be sufficient to create a "bad" disk when it tries to write a file beyond sector 720. Beery -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
I thought that was what Dan was referencing as far as the "disk" that was sold. JumpBoot was just a specially formatted disk with interlace/skew that could be created with HyperCopy. -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
All Jerry did was have a disk with a modified skew and an interlace of one where system/SYS was written. I wrote about that in 9640 News at the time. You could create your own disk with HyperCopy. -
Mayhem was quoted in the comments as saying it did nothing.
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Reading the comments from the posted video on youtube, that extra bit does nothing.
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Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
Yeah, CYA can mask the AUTOEXEC loading as you can specify the device name and redefining the SCSMAP configuration can impact device number as well. -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
I believe back 2+ years ago, I posted the wrong source files and the wrong LOAD-xxx files for SCSI and IDE. Check these updates out: LOAD-IDE LOAD-SCS -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
OK, this appears to confirm the IDE and SCS loader files need to be updated. -
Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
OK, right after MDOS has been loaded by the LOAD-xxx file off the device, and right before operation is transferred to MDOS, there are two bytes written to onboard RAM at >F04E STUPST SBO 0 9640 mode LI R0,'TI' MOV R0,@>F04E CLR @>F110 *ADD LABEL BLWP @0 The file CLI\HCLIS then looks at those two bytes, then to determine SCSI, IDE, MFM, TIPI and updates the location PAB for xxx1.AUTOEXEC I just looked at the source code for SCSI and IDE and I am not seeing the necessary two bytes written, instead just a CLR @>F04E. I am not sure if I uploaded the wrong source files, or something I overlooked as I never heard anyone report back about not picking up AUTOEXEC on a SCSI or IDE device. The TIPI source for the LOADER does have the code. This is the code in CLI\HCLIS which loads starting at >0400. It is down about 190 lines in the source code file. MOVB @>F114,@SCRPAG MOV @PWRFLG,R1 JEQ HDPWR9 this is a ctl-alt-del reboot MOV @>F04E,R1 test horizons boot flag JEQ HDPWR9 CI R1,'TI' 1.13.2021, test for tipi boot flag JEQ HDPWRT CI R1,'SC' 2.27.2021, test for SCSI boot flag JEQ SCSWRT CI R1,'ID' 2.27.2021, test for IDE boot flag JEQ IDEWRT * CI R1,'BM' 3.06.2021, HDS2.AUTOEXEC boot * JEQ BWMWRT CI R1,'HD' was this a load/sys boot? JNE HDPWR8 nope, must be a horizons boot MOV R1,@OLDNAM LI R1,'SX' MOVB R1,@OLDNAM+2 JMP HDPWR9 -
xbii Research on Myarc Extended Basic II
9640News replied to retroclouds's topic in TI-99/4A Development
I think this is the file you need.Myarc512K.BIN -
I've got the ZuluSCSI. Backups are easy as it is just a matter of copying the individual hard drive images (250 MB or whatever size you format) to another device. I have not encountered any issues using on a Geneve.
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Geneve OS development discussion
9640News replied to InsaneMultitasker's topic in TI-99/4A Development
I have updated everything to be included for any potential future release.