//=======================================================================
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//=======================================================================
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// Project Monophony
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// Project Monophony
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// Wire-Frame 3D Graphics Accelerator IP Core
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// Wire-Frame 3D Graphics Accelerator IP Core
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//
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//
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// File:
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// File:
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// mp_hwdep.c
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// mp_hwdep.c
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//
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//
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// Abstract:
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// Abstract:
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// Hardware dependent function
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// Hardware dependent function
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//
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//
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// Author:
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// Author:
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// Kenji Ishimaru (info.wf3d@gmail.com)
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// Kenji Ishimaru (info.info.wf3d@gmail.com)
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//
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//
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//======================================================================
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//======================================================================
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//
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//
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// Copyright (c) 2015, Kenji Ishimaru
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// Copyright (c) 2015, Kenji Ishimaru
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// All rights reserved.
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// All rights reserved.
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//
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//
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// Redistribution and use in source and binary forms, with or without
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// modification, are permitted provided that the following conditions are met:
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//
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//
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// -Redistributions of source code must retain the above copyright notice,
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// -Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// this list of conditions and the following disclaimer.
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// -Redistributions in binary form must reproduce the above copyright notice,
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// -Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// and/or other materials provided with the distribution.
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//
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//
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// Revision History
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// Revision History
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#include "mp_hwdep.h"
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#include "mp_hwdep.h"
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volatile int fb_front = 0;
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volatile int fb_front = 0;
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void buffer_clear(unsigned int c,int bank) {
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void buffer_clear(unsigned int c,int bank) {
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unsigned int i;
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unsigned int i;
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unsigned int a,ae;
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unsigned int a,ae;
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if (bank==1) a = FRAME_BUFFER_1;
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if (bank==1) a = FRAME_BUFFER_1;
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else a = FRAME_BUFFER_0;
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else a = FRAME_BUFFER_0;
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ae = a+0x4b000; // 640x480x8
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ae = a+0x4b000; // 640x480x8
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for (i = a; i < ae; i += 4 ) {
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for (i = a; i < ae; i += 4 ) {
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(*(volatile unsigned int *)i) = c;
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(*(volatile unsigned int *)i) = c;
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}
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}
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}
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}
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void video_init() {
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void video_init() {
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FB0_OFFSET = FRAME_BUFFER_0;
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FB0_OFFSET = FRAME_BUFFER_0;
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FB1_OFFSET = FRAME_BUFFER_1;
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FB1_OFFSET = FRAME_BUFFER_1;
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FRONT_BUFFER = 0;
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FRONT_BUFFER = 0;
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VIDEO_INT_MASK = 3;
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VIDEO_INT_MASK = 3;
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COLOR_MODE = 2; // 8bit color
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COLOR_MODE = 2; // 8bit color
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fb_front = 0; // BANK0 is displayed
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fb_front = 0; // BANK0 is displayed
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// clear screen
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// clear screen
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printf("COLOR MODE %d\n",COLOR_MODE);
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printf("COLOR MODE %d\n",COLOR_MODE);
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// Video Start
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// Video Start
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VIDEO_START = 0x00000001;
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VIDEO_START = 0x00000001;
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}
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}
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void video_swap() {
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void video_swap() {
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int video_status;
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int video_status;
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//VIDEO_INT_CLEAR = 0;
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//VIDEO_INT_CLEAR = 0;
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video_status = VIDEO_STATUS;
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video_status = VIDEO_STATUS;
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while (!(video_status & 0x1)) {
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while (!(video_status & 0x1)) {
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video_status = VIDEO_STATUS;
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video_status = VIDEO_STATUS;
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}
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}
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if (fb_front == 0) fb_front = 1;
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if (fb_front == 0) fb_front = 1;
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else fb_front = 0;
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else fb_front = 0;
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FRONT_BUFFER = fb_front;
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FRONT_BUFFER = fb_front;
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}
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}
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void hw_init() {
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void hw_init() {
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}
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}
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