zasm: can now assemble zasm/expr.asm!

apps/zasm/expr.asm

@@ -53,7 +53,7 @@ _resolveLeftAndRight:
 	; Now we have parsed everything to the left and we have its result in
 	; IX. What we need to do now is the same thing on (DE) and then apply
 	; the + operator. Let's save IX somewhere and parse this.
-	ex	hl, de	; right expr now in HL
+	ex	de, hl	; right expr now in HL
 	push	ix
 	pop	de	; numeric left expr result in DE
 	jp	parseExpr

tools/tests/zasm/test7.asm

@@ -25,6 +25,7 @@
 .equ	DIREC_RAMSTART	TOK_RAMEND
 #include "zasm/directive.asm"
 #include "zasm/instr.asm"
+#include "zasm/expr.asm"
 
 zasmIsFirstPass:
 	nop
@@ -32,6 +33,3 @@ zasmIsFirstPass:
 zasmIsLocalPass:
 	nop
 
-parseExpr:
-	nop
-