zasm: move zasm.asm to instr.asm and create main.asm

instr.asm is for single instruction assembly.

apps/zasm/emul/Makefile

@@ -8,5 +8,5 @@ libz80/libz80.o: libz80/z80.c
 kernel.h: glue.asm
 	scas -o - -I ../../../parts/z80 $< | ./bin2c.sh KERNEL | tee $@ > /dev/null
 
-zasm.h: ../zasm.asm ../tok.asm
+zasm.h: ../main.asm ../instr.asm ../tok.asm
 	scas -o - -I.. $< | ./bin2c.sh ZASM | tee $@ > /dev/null

apps/zasm/instr.asm

@@ -1,5 +1,3 @@
-#include "user.inc"
-
 ; *** Consts ***
 ; Number of rows in the argspec table
 ARGSPEC_TBL_CNT		.equ	31
@@ -8,18 +6,6 @@ INSTR_TBL_CNT		.equ	135
 ; size in bytes of each row in the primary instructions table
 INSTR_TBL_ROWSIZE	.equ	9
 
-; *** Code ***
-.org	USER_CODE
-
-call	parseLine
-ld	b, 0
-ld	c, a	; written bytes
-ld	hl, curUpcode
-call	copy
-ret
-
-#include "tok.asm"
-
 ; run RLA the number of times specified in B
 rlaX:
 	; first, see if B == 0 to see if we need to bail out