Take command-line define values into account

When compiling with -D name=value the value was
being ignored. Fixed.

Author: boriel

tests/functional/define_val.asm

@@ -0,0 +1,34 @@
+	org 32768
+__START_PROGRAM:
+	di
+	push ix
+	push iy
+	exx
+	push hl
+	exx
+	ld hl, 0
+	add hl, sp
+	ld (__CALL_BACK__), hl
+	ei
+	ld hl, 0
+	ld b, h
+	ld c, l
+__END_PROGRAM:
+	di
+	ld hl, (__CALL_BACK__)
+	ld sp, hl
+	exx
+	pop hl
+	exx
+	pop iy
+	pop ix
+	ei
+	ret
+__CALL_BACK__:
+	DEFW 0
+ZXBASIC_USER_DATA:
+; Defines DATA END --> HEAP size is 0
+ZXBASIC_USER_DATA_END:
+	; Defines USER DATA Length in bytes
+ZXBASIC_USER_DATA_LEN EQU ZXBASIC_USER_DATA_END - ZXBASIC_USER_DATA
+	END

tests/functional/define_val.bas

@@ -0,0 +1,8 @@
+
+#ifdef MACRO
+#  if MACRO != VALUE
+#    error "MACRO should be VALUE"
+#  endif
+#endif
+
+

tests/functional/test_cmdline.txt

@@ -30,3 +30,6 @@ no_zxnext.asm:29: Syntax error. Unexpected token 'C' [C]
 
 >>> process_file('zxnext_all.asm')
 
+>>> process_file('define_val.bas', ['-q', '-S', '-O -D MACRO=VALUE'])
+>>> process_file('define_val.bas', ['-q', '-S', '-O -D MACRO'])
+define_val.bas:4: Error: "MACRO should be VALUE"

zxb/zxb.py

@@ -187,7 +187,7 @@ def main(args=None, emitter=None):
             name = macro[0]
             val = ''.join(macro[1:])
             OPTIONS.__DEFINES.value[name] = val
-            zxbpp.ID_TABLE.define(name, lineno=0)
+            zxbpp.ID_TABLE.define(name, value=val, lineno=0)
 
     if OPTIONS.Sinclair.value:
         OPTIONS.array_base.value = 1