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SvarDOS under QEMU makes the qemu process run at 100%. SvarDOS loads "FDAPM adv:reg" - this helps keeping the CPU low on VirtualBox, but not QEMU apparently.
"FDAPM APMDOS" works, but it then makes…
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Currently the kernel is zero-compressed. The single-file kernel is ~60K in size. It could be made smaller by utilizing another compression algorithm. Constraints: uncompressor should fit within 512 by…
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"datos": {
"ip_origen":"0.0.0.0:1",
"mac_origen":"aa:bb:cc:dd:ee:ff",
"mac_destino":"bb:aa:cc:dd:ee:ff",
"interfaz": 0,
"threads": 100
},
"peticion":[
{
"ip_destin…
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I set up two tests of the FCB FindFirst/FindNext functions on a FAT32 FS hard disk image. All tests are run with qemu, version `QEMU emulator version 5.2.0 (Debian 1:5.2+dfsg-11+deb11u2)`. The first t…
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There are some places where binary size could be reduced by stripping unneeded parts of the kernel. One obvious is stripping the ability to load a DRDOS.SYS from the single-file kernel.
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Start lDebug off fda in qemu, with the current release of edrdos.img as fdb. Then enter `boot protocol freedos fdb/drbio.sys` or `boot protocol edrdos fdb`. The kernel will load at first but halt with…
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https://github.com/SvarDOS/edrdos/blob/44f7d7c705d2b5a4905bffe5fff3bab71a1431c0/drdos/lfn.asm#L414
Should better be replaced by REP MOVSB.
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I noticed that at least @ecm-pushbx s EDR-DOS and Calderas OpenDOS kernel 7.03 accept an unformatted partition created by Free and MS FDISK as valid FAT-16 volume. My first guess is that the fill valu…