ack/mach/i386/libem/build.lua
George Koehler f6a1e08218 Test long long division and remainder; fix i386.
My i386 code from 893df4b gave the wrong sign to some 8-byte
remainders.  Fix by splitting .dvi8 and .rmi8 so each has its own code
to pick the sign.  They and .dvu8 and .rmu8 share a private sub
.divrem8 for unsigned division.

Improve the i386 code by using instructions like _bsr_ and _shrd_.
Change the helpers to yield a quotient in ebx:eax or a remainder in
ecx:edx; this seems more convenient, because _div_ puts its quotient
in eax and remainder in edx.
2019-09-16 20:19:36 -04:00

9 lines
143 B
Lua

for _, plat in ipairs(vars.plats) do
acklibrary {
name = "lib_"..plat,
srcs = { "./*.s" }, -- divrem8.s
vars = { plat = plat },
}
end