move program from testcode/assembler to test/asm and remove testcode/assembler

test/asm/Makefile

@@ -38,7 +38,7 @@ CPUDETECT_REFS := $(wildcard *-cpudetect.ref)
 CPUDETECT_CPUS = $(foreach ref,$(CPUDETECT_REFS),$(ref:%-cpudetect.ref=%))
 CPUDETECT_BINS = $(foreach cpu,$(CPUDETECT_CPUS),$(WORKDIR)/$(cpu)-cpudetect.bin)
 
-all: $(OPCODE_BINS) $(CPUDETECT_BINS)
+all: $(OPCODE_BINS) $(CPUDETECT_BINS) paramcount.o
 
 $(WORKDIR):
 	$(call MKDIR,$(WORKDIR))
@@ -70,5 +70,8 @@ endef # CPUDETECT_template
 
 $(foreach cpu,$(CPUDETECT_CPUS),$(eval $(call CPUDETECT_template,$(cpu))))
 
+paramcount.o: paramcount.s
+	$(CA65) -o $(WORKDIR)/paramcount.o -l $(WORKDIR)/paramcount.lst paramcount.s
+
 clean:
 	@$(call RMDIR,$(WORKDIR))

test/asm/paramcount.s

@@ -0,0 +1,20 @@
+; Test ca65's handling of the .paramcount read-only variable.
+; .paramcount should see all given arguments, even when they are empty.
+
+.macro  push    r1, r2, r3, r4, r5, r6
+        .out    .sprintf(" .paramcount = %u", .paramcount)
+.if     .paramcount <> 0
+.ifblank        r1
+        .warning        "r1 is blank!"
+.exitmacro
+.endif
+        lda     r1
+        pha
+
+        push    r2, r3, r4, r5, r6
+.endif
+.endmacro
+
+        push    1, , {}
+        push    1, ,
+        push    1