Migrate sources and build scripts to Nestor80 #115
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Change the CODE macro used in the kernel and in NEXTOR.SYS so that it doesn't rely anymore in the assembler being able to assemble 8080 mnemonics.
- Re-encode in UTF-8 - Add .strenc instructions - Remove redundand macros - Adjust makefile
These files are data.mac, drv.mac, kbar.mac, chgbnk.mac, rel.mac Also, makefile adjusted appripriately.
With this, M80 isn't needed anymore to assemble the Nextor kernel (sjasm is still needed)
- Replace data structures with macros and modules. - Replace multi-push and pop with single ones. - Replace "ld iy,de" with real instructions. - Replace 512 repetitions of LDI with a REPT. - Replace $ hex prefix with h suffix. - Expect MASTER_ONLY to be defined externally. The original code seems to mistakenly assume that "pop x,y,z" generates "pop x - pop y - pop z" when actually what sjasm generates is "pop z - pop y - pop x"; surprisingly, the driver seems to work fine with and without fixing this. So in this commit these are fixed, but if a BAD_POPS constant is defined then the wrong pops will be generated instead (may be useful for debugging/testing). Additionally, the makefile has been adapted accordingly.
Also adjust Makefile to properly assemble it.
Also keep it "old style" by removing escape sequences and DZs
Also change --status-verbosity to --verbosity in makefiles
Also add an explicit program name instruction to all source files.
….mac for readability
Also update README to point out that SDCC 4.2 or newer is now required.
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This was referenced Apr 12, 2023
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Make the necessary adjustments to use the Nestor80 tools instead of the M80 tools for building Nextor (kernel, NEXTOR.SYS and tools). This includes:
.strencinstructions to assemble them as SHIFT-JIS strings.includeinstructions.kvar.macto longer, more descriptive names.CPM32.EXE,M80.CPM,L80.CPMandLIB80.CPM.Additional changes:
_sdcccall(1)) is used for C code, this implies that SDCC 4.2 or newer is now required for building Nextor.Also, support for building Nextor natively in Windows has been definitely removed, Linux (or Windows + WSL) is the only available option now (macOS could work too, not tested).