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Re:Show HN: 8086/8088 assembler that runs over 8088 hardware with mode...
on Friday October 04, 2019 @06:56AM (#21156447)
Awesome project, congrats!
Re:Show HN: A simple way to write standalone C programs for i386
on Thursday October 03, 2019 @12:58PM (#21149125)
I "discovered" DOS 25 years ago, not sure what's your point?
Re:Show HN: A simple way to write standalone C programs for i386
on Thursday October 03, 2019 @12:57PM (#21149113)
Hadn't heard of them, thanks for the links!
Re:Show HN: A simple way to write standalone C programs for i386
on Thursday October 03, 2019 @12:55PM (#21149093)
Good point, OpenWatcom is obviously miles ahead of Turbo C, but it's also much more complex. I tinkered with it for a while, and ended up using the latter for its simplicity.
DOSBox can be easily installed on any system, you can save the entire C: in a git repo and it'll probably keep working in any number of years from now :)
Meanwhile, OWC doesn't have packages in popular Linux distros, only a custom binary installer, and on MacOS it doesn't even have that.
Re:Show HN: A simple way to write standalone C programs for i386
on Wednesday October 02, 2019 @12:25PM (#21138210)
Targeting 8086-level of instructions was actually my first idea. It wasn't possible with gcc/clang, but Turbo C is freeware these days, so... ;) In case you're interested, see https://github.com/luke8086/nf/
Re:Show HN: A simple way to write standalone C programs for i386
on Wednesday October 02, 2019 @12:17PM (#21138112)
I'm not sure if defaulting to 32-bit instructions would still allow calling BIOS, but good point!
In this case the design goal was to show the easiest way to jump into C and start building the actual application, so I just tried to avoid any trickery (even enabling the A20 line)
Re:Show HN: A simple way to write standalone C programs for i386
on Wednesday October 02, 2019 @11:56AM (#21137837)
I feel your pain, so sorry that you still need to support the .code16gcc hack! My first approach was actually to avoid GCC/clang altogether, and use Turbo C instead. It came with its own set of problems, but the output was much more predictable. In case you're interested, you can find the code at https://github.com/luke8086/nf
Re:BootOS: Monolithic operating system in 512 bytes of x86 machine code
on Wednesday July 31, 2019 @08:49AM (#20573955)
> Also seems he has just self-published a book (as of July 27):
> Do you would like more details on the inner workings? This program is fully commented in my new book Programming Boot Sector Games and you'll also find a 8086/8088 crash course!
I created one such game [1] a few years ago and had plenty of fun. I'm pretty shocked to see an actual book published specifically about this niche topic. I haven't read it, but I hope it gets some recognition, because IMO toying with 8086 is one of the best ways to get into bare-metal coding.