b9b3428e01
This library is for software floating point. The i80 back end has never implemented floating point, and might not be ready for libfp. This commit only builds libfp without using it. I edit first/build.lua and plat/build.lua to allow `ack -c.s`, then use FP.script to edit the assembly code. I edit FP.script so it writes the edited assembly code to stdout, not to the input file.
53 lines
1 KiB
Lua
53 lines
1 KiB
Lua
include("plat/build.lua")
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-- For now, all floats are little-endian.
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local byte_order = "mach/i86/libfp/byte_order.h"
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-- For now, only cpm uses software floating-point.
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for _, plat in ipairs({"cpm"}) do
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local edits = {}
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for _, src in fpairs("./*.c", "./*.e") do
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-- Compile each src file into assembly code.
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local n = basename(src):gsub("%.%w*$", "")
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local assembly = ackfile {
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name = "s_"..plat.."/"..n,
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srcs = { src },
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deps = {
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"./*.h",
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byte_order,
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},
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suffix = ".s",
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vars = {
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ackcflags = "-I"..dirname(byte_order),
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plat = plat
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}
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}
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-- Run FP.script to edit the assembly code.
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edits[#edits+1] = normalrule {
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name = "ed_"..plat.."/"..n,
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ins = {
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"./FP.script",
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assembly,
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},
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outleaves = { n..".s" },
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commands = {
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"ed -s %{ins[2]} <%{ins[1]} >%{outs}"
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}
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}
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end
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acklibrary {
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name = "lib_"..plat,
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srcs = { edits },
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vars = { plat = plat }
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}
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installable {
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name = "pkg_"..plat,
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map = {
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["$(PLATIND)/"..plat.."/libfp.a"] = "+lib_"..plat,
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}
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}
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end
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