ack/mach/i386/libem/build.lua

for _, plat in ipairs(vars.plats) do
	acklibrary {
		name = "lib_"..plat,
		srcs = { "./*.s" }, -- dvi8.s
		vars = { plat = plat },
	}
end
linux386 builds. Also, forgot to turn back on the language runtimes. 2016-08-14 08:37:55 +00:00			`for _, plat in ipairs(vars.plats) do`
			`acklibrary {`
			`name = "lib_"..plat,`
Experiment with 8-byte integers in ncg i386. This provides adi, sbi, mli, dvi, rmi, ngi, dvu, rmu 8, but is missing shifts and rotates. It is also missing conversions between 8-byte integers and other sizes of integers or floats. The code might not be all correct, but works at least some of the time. I adapted this from how ncg i86 does 4-byte integers, but I use a different algorithm when dividing by a large value: i86 avoids the div instruction and uses a shift-and-subtract loop; but I use the div instruction to estimate a quotient, which is more like how big integer libraries do division. My .dvi8 and .dvu8 also set ecx:ebx to the remainder; this might be a bad idea, because it requires .dvi8 and .dvu8 to always calculate the remainder, even when the caller only wants the quotient. To play with 8-byte integers, I wrote EM procedures like mes 2, 4, 4 exp $ngi pro $ngi,0 ldl 4 ngi 8 lol 0 sti 8 lol 0 ret 4 end exp $adi pro $adi,0 ldl 4 ldl 12 adi 8 lol 0 sti 8 lol 0 ret 4 end and called them from C like typedef struct { int l; int h; } q; q ngi(q); q adi(q, q); 2019-08-20 17:38:18 +00:00			`srcs = { "./*.s" }, -- dvi8.s`
linux386 builds. Also, forgot to turn back on the language runtimes. 2016-08-14 08:37:55 +00:00			`vars = { plat = plat },`
			`}`
			`end`