;
; Simulation Version of Pass1; Instructions:
;
; 1. Set the SAMPLES constant variable to the number
;     of samples you want to use.
;
; 2. Assume that your job folder is 
;       Z:\source\simfir
; 
;    This folder will contain the files
;
;       asm563000.exe
;       asm.bat [asm56300 -a -b -g -l simio.asm]
;       simio.cld [assembler generated]
;       simio.lst [assembler generated]
;       mysrc.asm [your code, including subroutines
;                  my_init and my_job]
;       inputL.io [ASCII text file, user supplied]
;       inputR.io [ASCII text file, user supplied]
;       outL.io   [simulator generated]
;       outR.io   [simulator generated]
;       and any other .asm files which are referenced
;            by 'include's in mysrc
;
;       EXAMPLE input file. If inputL.io contains
;                [0.5 0.0#1000]
;       then the left channel input will be 0.5 times
;       a unit pulse sequence. (See Chapter 3 of the 
;       Simulator Manual)
;
; 3. in DOS, invoke the assembler by typing <asm>
; 
; 4. start the simulator:
;
; start->programs->Motor..Tools->DSP563000->GUI56300
;
;      set the path  < path Z:\source\simfir >
;      load the object < load simio.cld >
;
; declare "radix fractional" input and output files:
;   
;   < input #1  x:0 inputL.io -rf >
;   < input #2  x:1 inputR.io -rf >
;   < output #1 x:2 outL.io -rf >
;   < output #2 x:3 outR.io -rf >
; 
; After running the simulator, close the I/O files
; before looking at them with another application:
;
;    < input #1 off >
;    < input #2 off >
;    < output #1 off >
;    < output #2 off >
;
; NOTE: In the following implementation,
; the memory locations x:$0 through x:$3 are 
; reserved for I/O and cannot be used elsewhere.  
; (These addresses can be changed by the user.)

SAMPLES	equ	$14  ;decimal 20

	org	x:0
inL	ds	1  ; input from x:$0
inR	ds	1
outL	ds	1  ; output to x:$2
outR	ds	1

	org	p:0
        jmp     START

        org p:$400
START
	jsr	sim_init	   ; init sim i/o
	jsr	my_init            ; user init code

	do	#SAMPLES,ioLoop    ; loop for SAMPLES times

	move	x:inL,a		   ; load the sample from the file
	move	x:inR,b

	jsr	my_job   	   ; user process sample code

	move	a,x:outL	   ; write the sample to output
	move	b,x:outR
ioLoop
	stop

sim_init
	clr	a		   ; clear the four I/O locations
	move	a,x:inL
	move	a,x:inR
	move	a,x:outL
	move	a,x:outR
	rts	
	
	include 'mysrc.asm'	   ; This file contains the user code
        end