mu - Soul of a tiny new machine. More thorough tests → More comprehensible and rewrite-friendly software → More resilient society.

	Commit message (Collapse)	Author	Age	Files	Lines
*	.	Kartik K. Agaram	2021-04-16	1	-1/+1
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*	explicitly pass data disk to main	Kartik K. Agaram	2021-03-27	1	-1/+1
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*	explicitly pass screen and keyboard to main	Kartik K. Agaram	2021-03-26	1	-2/+2
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*	.	Kartik K. Agaram	2021-03-15	1	-1/+1
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*	7846	Kartik K. Agaram	2021-03-04	1	-1/+1
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*	7842 - new directory organization	Kartik K. Agaram	2021-03-03	1	-0/+252
	Baremetal is now the default build target and therefore has its sources at the top-level. Baremetal programs build using the phase-2 Mu toolchain that requires a Linux kernel. This phase-2 codebase which used to be at the top-level is now under the linux/ directory. Finally, the phase-2 toolchain, while self-hosting, has a way to bootstrap from a C implementation, which is now stored in linux/bootstrap. The bootstrap C implementation uses some literate programming tools that are now in linux/bootstrap/tools. So the whole thing has gotten inverted. Each directory should build one artifact and include the main sources (along with standard library). Tools used for building it are relegated to sub-directories, even though those tools are often useful in their own right, and have had lots of interesting programs written using them. A couple of things have gotten dropped in this process: - I had old ways to run on just a Linux kernel, or with a Soso kernel. No more. - I had some old tooling for running a single test at the cursor. I haven't used that lately. Maybe I'll bring it back one day. The reorg isn't done yet. Still to do: - redo documentation everywhere. All the README files, all other markdown, particularly vocabulary.md. - clean up how-to-run comments at the start of programs everywhere - rethink what to do with the html/ directory. Do we even want to keep supporting it? In spite of these shortcomings, all the scripts at the top-level, linux/ and linux/bootstrap are working. The names of the scripts also feel reasonable. This is a good milestone to take stock at.

# Read a character from stdin, save it to a global, write it to stdout. # # To run: # $ ./translate_subx 000init.subx apps/ex4.subx # $ ./a.elf == data # the global variable we save to X: 0/imm32 # space for read() to write to == code Entry: # read(stdin, X, 1) # . fd = 0 (stdin) bb/copy-to-ebx 0/imm32 # . data = X (location to write result to) b9/copy-to-ecx X/imm32 # . size = 1 character ba/copy-to-edx 1/imm32 # . syscall e8/call syscall_read/disp32 # write(stdout, X, 1) # . fd = 1 (stdout) bb/copy-to-ebx 1/imm32 # . initialize X (location to read from) b9/copy-to-ecx X/imm32 # . size = 1 character ba/copy-to-edx 1/imm32 # . syscall e8/call syscall_write/disp32 # exit(ebx) e8/call syscall_exit/disp32 # . . vim:nowrap:textwidth=0