added a test that must fail

test/asm/Makefile

@@ -12,7 +12,7 @@ endif
 
 WORKDIR = ../testwrk/asm
 
-SUBDIRS = cpudetect opcodes listing val
+SUBDIRS = cpudetect opcodes listing val err
 
 .PHONY: all continue mostlyclean clean
 

test/asm/err/Makefile

@@ -0,0 +1,45 @@
+# Makefile for the tests that MUST NOT compile
+
+ifneq ($(shell echo),)
+  CMD_EXE = 1
+endif
+
+ifdef CMD_EXE
+  S = $(subst /,\,/)
+  NOT = - # Hack
+  NULLDEV = nul:
+  MKDIR = mkdir $(subst /,\,$1)
+  RMDIR = -rmdir /s /q $(subst /,\,$1)
+else
+  S = /
+  NOT = !
+  NULLDEV = /dev/null
+  MKDIR = mkdir -p $1
+  RMDIR = $(RM) -r $1
+endif
+
+ifdef QUIET
+  .SILENT:
+  NULLERR = 2>$(NULLDEV)
+endif
+
+CA65 := $(if $(wildcard ../../../bin/ca65*),..$S..$S..$Sbin$Sca65,ca65)
+
+WORKDIR = ../../../testwrk/asm/err
+
+.PHONY: all clean
+
+SOURCES := $(wildcard *.s)
+TESTS = $(patsubst %.s,$(WORKDIR)/%.prg,$(SOURCES))
+
+all: $(TESTS)
+
+$(WORKDIR):
+	$(call MKDIR,$(WORKDIR))
+
+$(WORKDIR)/%.prg: %.s | $(WORKDIR)
+	$(if $(QUIET),echo asm/err/$*.s)
+	$(NOT) $(CA65) -o $@ $< $(NULLERR)
+
+clean:
+	@$(call RMDIR,$(WORKDIR))

test/asm/err/bug1538-1.s

@@ -0,0 +1,3 @@
+
+        ; this should produce a range error
+        .byte $1234 & $ffff

test/asm/readme.txt

@@ -18,9 +18,15 @@ Overall tests:
 
 These go into listing/. Refer to listing/readme.txt
 
-Val:
+val:
 ----
 
 Works very much like the /val directory used to test the compiler -  individual
 tests are run in the simulator and should exit with an exit code of 0 when they
 pass, or either -1 or a number indicating what part of the test failed on error.
+
+err:
+----
+
+Works very much like the /err directory used to test the compiler - individual
+tests are assembled and MUST NOT assemble without error.