CrazyEttin
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b34b0ea74e
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Add new under construction system calls to the readme and change the one for loading files to accomodate them, move the disk parameters to the main namespace in anticipation of restructuring the disk operations with the addition of the new system calls, rewrite parts of system to remove essentially duplicate code, and rewrite the explanation of the file system in the readme.
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2 years ago |
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CrazyEttin
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8baa294947
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Rewrite everything to be more elegant, prevent changing to non-existent drives, add the option to quit print and list while paging and modify the readme accordingly, and add info on the EttinOS-extra repository to the readme.
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2 years ago |
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CrazyEttin
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a20d846f60
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Fix the root loading bug in the bootloader as well just to be safe, fix a bug in loadf giving a file size one sector too large, make loadf return the size of the file in cx, change print to work based on file size instead of a file ending character, and modify the readme and other text files accordingly.
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2 years ago |
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CrazyEttin
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e605a6a0a8
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Add paging to print and modify the readme accordingly, add the file loading bug to the known bugs section, and tidy the usage section.
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2 years ago |
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CrazyEttin
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41eb45ac46
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Implement paging in list and fix a bug where the root directory would load only partially.
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2 years ago |
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CrazyEttin
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79a2fc78b8
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Make loadf check if there is enough memory before loading a file, and make the loadf error states and messages more specific and modify the readme accordingly.
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2 years ago |
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CrazyEttin
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1ba0dbe89f
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Rename type to print and modify the readme and make.sh accordingly, fix a bug where the system would crash if you tried to access a non-existent or empty drive, add a section for known bugs in the readme, tidy up the code a bit, and add a logo.
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2 years ago |
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CrazyEttin
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6d5d7963e5
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Relocated programs to 0x3000 because of a miscalculation of how much room the file systems of 1440 KiB disks take.
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2 years ago |
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CrazyEttin
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f6c67e0c82
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Make drive specifications work for command as well and modify the readme accordingly, and fix some other minor bugs.
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2 years ago |
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CrazyEttin
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116b21bab7
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Implement drive specifications for loadf and list and modify the readme accordingly, rewrite error messages, and decide to not support EBPB and file attributes.
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2 years ago |
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CrazyEttin
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874bcb9d67
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Write list and update the readme and make.sh accordingly, fix the drive changing command so that ignores extra spaces and possible command tails, remove cmpstr as it is no longer used by anything, and make readstr independent of terminal width again.
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2 years ago |
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CrazyEttin
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851abfe053
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Fix the loading problem at track border in the bootloader as well, tidy up loadf a bit more, rewrite the sections of the readme about input and commands as a single section about usage, and add a line to make.sh deleting any existing source image before creating a new one.
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2 years ago |
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CrazyEttin
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2544d96a81
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Fix a bug in loadf that prevented reading clusters at a track boundary, write type, Ettinify the text files, and modify the readme and make.sh accordingly, and add a source disk image to make.sh.
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2 years ago |
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CrazyEttin
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92d93714bd
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Write echo, update the readme with information on how the commands work, and replace a lodsb stosb loop in the shell with a movsb one.
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2 years ago |
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CrazyEttin
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001faba978
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Remove file name extensions from commands, implement command tails, ignore extra spaces either leading or trailing a command or between a command and its tail (except for drive changing), and fix a typo in hello.
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2 years ago |
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CrazyEttin
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dd139699af
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Change loadf so that it aborts if the load fails and so that it doesn’t print error messages itself, only sends an error code to the program that called it.
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2 years ago |
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CrazyEttin
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f826fef4fc
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Add drive letter assignment and the ability to change the drive.
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2 years ago |
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CrazyEttin
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1758b807e0
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Get loadf variables from the disk description table instead of hardcoding them, tidy up the make script a bit, add contributors to the copyright statement, and change the phrasing of the readme slightly.
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2 years ago |
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CrazyEttin
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5aa6bcb79c
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Add support for Sortix build environment.
Co-authored-by: Jonas 'Sortie' Termansen <sortie@maxsi.org>
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2 years ago |
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CrazyEttin
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2bfa61b669
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Change the line endings of the text files from Unix to DOS style.
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2 years ago |
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CrazyEttin
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08f2d57bb2
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Move the system stack to the end of the address space, make the shell ignore empty input, and tweak printstr and readstr a bit.
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2 years ago |
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CrazyEttin
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2e003c3198
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Write loadf and rewrite the shell to load external programs with it instead of internal calls.
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2 years ago |
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CrazyEttin
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59d9c7e89d
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Move system calls to interrupts and rename the main system loop to shell.
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2 years ago |
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CrazyEttin
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fc3a0bbbe9
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Add an error message to the bootloader in case the system is not found, fix two related bugs in readstr related to movement between lines and scrolling, and tidy the code up a bit.
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2 years ago |
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CrazyEttin
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45a11e601f
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Finish writing fileify, remove printch and readch since those have not proven useful, merge the code in byte2hex to keycode, and rename printnl back to newline because it was easy to confuse with println.
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2 years ago |
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CrazyEttin
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a62a87970a
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Move the system from after the bootloader to the beginning of usable memory and the bootloader and system stacks to after their respective programs, fix a couple of bugs in the bootloader that made it not load the system correctly above a specific size, abandon the goal of eventual subdirectory support and modify the project directory structure and make.sh accordingly, and start writing fileify.
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2 years ago |
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CrazyEttin
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f2654038cb
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Make the system compatible with Intel 8086 CPU, change the remaining media-dependent constants in the bootloader to variables, change the default media to a 360 KiB 5.25" floppy disk and offer 1.44 MB 3.5" disk as an option instead, and change labels used for data to variables because apparently using labels for data is not wise.
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2 years ago |
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CrazyEttin
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9afbaae05d
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Add readch and for the sake of symmetry printch, simplify make.sh, and tweak the code a bit to make it more consistent.
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2 years ago |
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CrazyEttin
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cc35d72a4e
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The system now boots from a FAT12 file system!
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2 years ago |
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CrazyEttin
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9065e2c591
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Protect registers from changes within calls and rename newline to printcrlf for the sake of consistency.
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2 years ago |
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CrazyEttin
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9582045822
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Rework cursor positioning after input.
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2 years ago |
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CrazyEttin
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522905d77c
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Move the system to low memory and tweak readln.
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2 years ago |
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CrazyEttin
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6e5019dcb7
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Trying to set up a stack.
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2 years ago |
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CrazyEttin
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d0a5441a62
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Reorganise the repo a bit.
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2 years ago |
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CrazyEttin
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e791c67665
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Add a disk description table to the bootloader in anticipation of file system support and do some general tweaking.
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2 years ago |
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CrazyEttin
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843c018510
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Include the string-ending null for maximum length strings within the string length.
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2 years ago |
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CrazyEttin
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adefdf3e4c
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Reorganise and comment the code and rewrite readstr.
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2 years ago |
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CrazyEttin
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ed9ec938ae
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Organise the code better and tweak some of the label names.
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2 years ago |
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CrazyEttin
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3045519bd4
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Fix backspace not working at linebreak.
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2 years ago |
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CrazyEttin
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958b64e8a3
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Add byte2hex call and help and keycode commands
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2 years ago |
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CrazyEttin
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0daa68f804
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Streamline the commands and give the major parts of the code headings
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2 years ago |
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CrazyEttin
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0c0c882b21
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Add couple of commands and tweak the input length
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2 years ago |
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CrazyEttin
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46691e9975
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Change all numbers to hex and add trailing space removing to read.
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2 years ago |
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CrazyEttin
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df836219eb
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Initial commit
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2 years ago |
