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[/] [xulalx25soc/] [trunk/] [bench/] [asm/] [cfgtest.s] - Blame information for rev 105

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1 16 dgisselq
////////////////////////////////////////////////////////////////////////////////
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//
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// Filename:    cfgtest.s
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//
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// Project:     XuLA2 board
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//
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// Purpose:     To test whether or not the SPARTAN6_ICAPE interface works with
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//              the wbicape6.v / wbicapesimple.v modules.
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//
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//      Normally, I'd do this test using wbregs only.  In this case, that's
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//      not possible.  wbregs requires the use of the JTAG port for the XuLA
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//      board.  Further, JTAG and ICAPE cannot be used at the same time.  So
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//      our goal instead will be to use wbregs and ziprun to start this program,
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//      to disconnect (i.e. stop using wbregs and ziprun, just leaving the CPU
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//      to run), to wait for an RTC alarm, to trigger the configuration port
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//      scope, and then to see how we did.  That's a lot, but doing things in
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//      order is what a CPU is for--so let's see how we do.
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//
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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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//
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#include "dev.i"
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#include "sys.i"
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master_entry:
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        BRA     end_of_data
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external_data:
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cfg_result:
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        WORD    0
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status:
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        WORD    0
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end_of_data:
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        ; Set up our stacks--though I don't think we'll need them
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        MOV     sys_stack(PC),SP
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        MOV     user_stack(PC),uSP
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        ;
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        ; Clear our registers
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        CLR     R0
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        CLR     R1
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        CLR     R2
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        CLR     R3
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        CLR     R4
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        CLR     R5
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        CLR     R6
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        CLR     R7
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        CLR     R8
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        CLR     R9
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        CLR     R10
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        CLR     R11
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        MOV     R0,uR0
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        MOV     R0,uR1
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        MOV     R0,uR2
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        MOV     R0,uR3
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        MOV     R0,uR4
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        MOV     R0,uR5
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        MOV     R0,uR6
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        MOV     R0,uR7
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        MOV     R0,uR8
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        MOV     R0,uR9
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        MOV     R0,uR10
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        MOV     R0,uR12
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        ;
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        ; Reset and prime our scope
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        LDI     dev.cfgscope,R12
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        LDI     0x03fc,R0
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        STO     R0,(R12)
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        ;
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        ; Wait on an alarm
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        LDI     sys.bus,R12
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        LDI     0x7fffffff,R0           // Clear and disable all interrupts
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        STO     R0,(R12)
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        ; LDI   RTCINTEN|0x0ffff,R0     // Enable the RTC interrupt
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        LDI     0x8080ffff,R0
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        STO     R0,(R12)
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        ;
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        MOV     user_idle(PC),uPC
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        RTU
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        ;
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        LDI     0x0080ffff,R0
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        STO     R0,(R12)
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        ;
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        MOV     user_entry(PC),uPC
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        MOV     user_stack(PC),uSP
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        ;
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        RTU
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        ;
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        HALT
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        HALT
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        BUSY
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        HALT
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user_idle:
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        WAIT
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        BRA     user_idle
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user_entry:
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        LDI     dev.cfg,R1
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        LOD     (R1),R0
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        ADD     5,R0
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        STO     R0,cfg_result(PC)
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        LDI     14,R0
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        LDI     dev.cfg.cmd,R1
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        STO     R0,(R1)
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        NOOP
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        TRAP    0
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user_end_of_stack:
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        FILL    512,0
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user_stack:
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sys_end_of_stack:
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        FILL    512,0
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sys_stack:
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        WORD    0
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;
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;

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