8 Commits

Author	SHA1	Message	Date
Elliot Nunn	933bd48f01	Auto-generate per-file function lists	2018-06-30 16:07:38 +08:00
Elliot Nunn	0470029cac	Clarify exceptions	2018-06-19 15:06:03 +08:00
Elliot Nunn	6c199998f0	Lots of work on Address Spaces	2018-04-27 21:52:08 +08:00
Elliot Nunn	dd4e2ef845	Reverse PPC-68k context switching (incomplete)	2018-04-15 17:00:11 +08:00
Elliot Nunn	4c0e5221f1	Remove unnecessary static branch hints ... These + and - characters in a branch mnemonic can cause the assembler to produce conditional branch instructions with that hint the branch predictor. The default for forward branches is -, and for backward branches is +. If a mnemonic is issued with the opposite sign, then bit 10 of the instruction (the LSB of the BO field) is set. My long-retired "ppcdisasm" script inserted these hints unconditionally, despite 98% of them not being required. The code is much cleaner now. I read in some old MPW release notes that PPCAsm and PPCLink together exhibit a quirk when linking conditional branches to imported symbols. PPCAsm always assembles these conditional branches as if they were forward branches (that is, a + hint will always set the hint bit, and a - hint will never). I hoped to use this property to divine whether the NanoKernel was linked from one or many assembly files, but I was frustrated by the lack of conditional branches between files.	2018-04-15 16:52:14 +08:00
Elliot Nunn	e2e519b863	Remove junk from old disassembler	2018-03-31 16:19:41 +08:00
Elliot Nunn	123c1e4bee	Work on the scheduler and interrupt handling code	2018-03-30 10:27:12 +08:00
Elliot Nunn	c5c5b784cb	Initial commit	2018-02-18 01:24:10 +08:00