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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2021-06-24 20:30:49 +03:00 |
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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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2021-06-24 19:31:15 +03:00 |
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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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2021-06-24 18:34:41 +03:00 |
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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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2021-06-22 22:37:49 +03:00 |
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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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2021-06-22 16:05:09 +03:00 |
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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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2021-06-21 21:55:20 +03:00 |
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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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2021-06-20 14:18:50 +03:00 |
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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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2021-06-18 21:59:59 +03:00 |
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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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2021-06-17 01:03:00 +03:00 |
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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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2021-06-16 22:00:45 +03:00 |
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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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2021-06-16 18:03:31 +03:00 |
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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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2021-06-10 20:54:43 +03:00 |
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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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2021-06-08 21:57:05 +03:00 |
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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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2021-06-06 21:53:15 +03:00 |
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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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2021-06-06 11:18:15 +03:00 |
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CrazyEttin
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9582045822
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Rework cursor positioning after input.
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2021-06-04 20:36:46 +03:00 |
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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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2021-06-04 09:15:21 +03:00 |
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CrazyEttin
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6e5019dcb7
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Trying to set up a stack.
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2021-06-02 18:13:12 +03:00 |
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CrazyEttin
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d0a5441a62
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Reorganise the repo a bit.
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2021-06-02 13:33:39 +03:00 |
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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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2021-06-01 21:34:37 +03:00 |
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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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2021-05-31 18:48:13 +03:00 |
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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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2021-05-30 19:34:42 +03:00 |
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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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2021-05-28 14:48:03 +03:00 |
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CrazyEttin
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3045519bd4
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Fix backspace not working at linebreak.
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2021-05-28 01:31:00 +03:00 |
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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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2021-05-27 22:33:43 +03:00 |
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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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2021-05-27 00:28:40 +03:00 |
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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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2021-05-27 00:28:40 +03:00 |
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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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2021-05-27 00:28:23 +03:00 |
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CrazyEttin
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df836219eb
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Initial commit
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2021-05-26 17:05:49 +03:00 |
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