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[/] [zipcpu/] [trunk/] [bench/] [asm/] [pcpc.S] - Blame information for rev 155

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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; Filename:     pcpc.S
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;
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; Project:      Zip CPU -- a small, lightweight, RISC CPU soft core
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;
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; Purpose:      A quick test of whether or not the busy command works.
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;               The test does not report success or failure, so you will need
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;               to observe it in a simulator to know if it worked or not.
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;
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; Creator:      Dan Gisselquist, Ph.D.
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;               Gisselquist Technology, LLC
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; Copyright (C) 2015, Gisselquist Technology, LLC
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;
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; This program is free software (firmware): you can redistribute it and/or
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; modify it under the terms of  the GNU General Public License as published
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; by the Free Software Foundation, either version 3 of the License, or (at
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; your option) any later version.
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;
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; This program is distributed in the hope that it will be useful, but WITHOUT
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; ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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; for more details.
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;
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; License:      GPL, v3, as defined and found on www.gnu.org,
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;               http://www.gnu.org/licenses/gpl.html
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;
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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start:
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        LDI     $1,R0
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        MOV     $1(R0),R1
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        MOV     $2(R0),R2
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        MOV     $3(R0),R3
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        MOV     $4(R0),R4
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        MOV     $5(R0),R5
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        MOV     $6(R0),R6
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        MOV     $7(R0),R7
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        MOV     $8(R0),R8
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        MOV     $9(R0),R9
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        MOV     $10(R0),R10
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        MOV     $11(R0),R11
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        MOV     $12(R0),R12
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        MOV     $13(R0),R13     ; R14 is CC, R15 is PC
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        LDI     $0,R0
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        BUSY                    ; This should create an endless loop here
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        ; MOV   R0,R0
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        ; MOV   R0,R0
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        ; MOV   R0,R0           ; By this point, the loop should've started
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        LDI     $10,R0          ; If we ever get here, we've got problems
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        ADD     $1(R0),R1
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        ADD     $2(R0),R2
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        ADD     $3(R0),R3
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        MOV     R0,R0
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        MOV     R0,R0           ; If we ever get here, we've got problems
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        HALT

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