The emulator builds; sdcc C programs now build correctly, and run in the

emulator; add a simple copy program.

build.lua

@@ -1,4 +1,5 @@
 vars.cflags = { "-g", "-Og" }
+vars.ldflags = { "-lm" }
 vars.cpmcflags = { "--opt-code-size" }
 vars.cpmldflags = {}
 
@@ -10,6 +11,7 @@ diskimage {
         ["dump.com"] = "cpmtools+dump",
         ["stat.com"] = "cpmtools+stat",
         ["asm.com"] = "cpmtools+asm",
+        ["copy.com"] = "cpmtools+copy",
 
         -- These binary tools are here temporarily and need to be removed ---
         -- we have no license for them.
@@ -44,6 +46,7 @@ diskimage {
 installable {
     name = "all",
     map = {
+        ["emu"] = "utils/emu+emu",
         ["nc200.img"] = "+nc200-img",
     --    ["osborne1.img"] = "+osborne1-img"
     }

build/build.lua

@@ -225,7 +225,7 @@ definerule("cprogram",
 		commands = {
 			type="strings",
 			default={
-				"$(CC) -o %{outs[1]} %{ins} %{ins} -lm"
+				"$(CC) -o %{outs[1]} %{ins} %{ins} %{ldflags}"
 			},
 		}
 	},

build/cpm.lua

@@ -66,11 +66,13 @@ definerule("sdccprogram",
 		deps = { type="targets", default={} },
 	},
 	function (e)
+		local crt = "cpmtools+cpmcrt"
+
 		return cprogram {
 			name = e.name,
 			srcs = e.srcs,
 			deps = {
-				"cpmtools/libcpm+cpmcrt",
+				crt,
 				"cpmtools/libcpm+libcpm",
 				e.deps,
 			},
@@ -82,6 +84,7 @@ definerule("sdccprogram",
 					.. "-k /usr/share/sdcc/lib/z80 "
 					.. "-l z80 "
 					.. "-m "
+					.. filenamesof(crt)[1] .. " "
 					.. "%{ins} ",
 				"makebin -p %{outs}.ihx - | dd status=none of=%{outs} bs=128 skip=2"
 			}

cpmtools/build.lua

@@ -1,3 +1,8 @@
+sdccfile {
+    name = "cpmcrt",
+    srcs = {"./cpmcrt.s"}
+}
+
 sdccprogram {
     name = "dump",
     srcs = { "./dump.c" },
@@ -12,3 +17,8 @@ sdccprogram {
     name = "asm",
     srcs = { "./asm.c" },
 }
+
+sdccprogram {
+    name = "copy",
+    srcs = { "./copy.c" },
+}