Changed the PC-Engine's configuration file, so that the command line can build 8K, 16K, and 32K carts.

Adjusted the PCE's document, the start-up code, and the PCE library test makefile.  That makefile shows how to post-process the linker's output file.

testcode/lib/pce/Makefile

@@ -1,12 +1,29 @@
 .PHONY: all clean test
 
+# Size of cartridge to generate.
+# Possible values:
+#  8K = 0x2000
+# 16K = 0x4000
+# 32K = 0x8000
+CARTSIZE := 0x2000
+
+ifeq (${CARTSIZE},0x8000)
+COUNT := 3
+else
+COUNT := 1
+endif
+
 all: conio.pce
 
-conio.pce: conio.c
-	../../../bin/cl65 -t pce conio.c --mapfile conio.map -o conio.pce
+%.pce: %.bin
+	dd if=$< bs=8K skip=${COUNT} > $@
+	dd if=$< bs=8K count=${COUNT} >> $@
+
+%.bin: %.c ../../../lib/pce.lib
+	../../../bin/cl65 -t pce $< -Wl -D__CARTSIZE__=${CARTSIZE} -m $*.map -o $@
 
 clean:
-	$(RM) conio.o conio.pce conio.map
+	$(RM) conio.o conio.???
 
 test: conio.pce
-	mednafen -force_module pce conio.pce
+	mednafen -force_module pce $<

testcode/lib/pce/conio.c

@@ -45,7 +45,7 @@ void main(void)
                         p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]
                 );
         }
-        memcpy(p, main, 0);     /* test that a zero length doesn't copy 64K */
+        memcpy(p, main, i = 0);     /* test that a zero length doesn't copy 64K */
 
         gotoxy(0,ysize - 1);
         for (i = 0; i < xsize; ++i) {