mirror of
https://github.com/pruten/shoebill.git
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b29c69453e
This may break the linux/windows builds - I haven't tried to compile on those platforms yet. - Ethernet is more or less working with a hardcoded /dev/tun0 network interface and hardcoded MAC address, though there's no automatic ifconfig/route configuration yet. - Instructions TAS and ILLEGAL are implemented now - Fixed some bugs in MOVEP - Implemented some other instruction disassemblers - Other little changes
76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/*
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* Copyright (c) 2014, Peter Rutenbar <pruten@gmail.com>
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* All rights reserved.
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*
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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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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. 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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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <assert.h>
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#include "../core/shoebill.h"
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static uint8_t sound_dma_read_byte(uint16_t addr)
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{
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if (addr == 0x804)
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return 0xff;
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return 0;
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}
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static void sound_dma_write_byte(uint16_t addr, uint8_t data)
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{
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if (addr >= 0x800) {
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// registers
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}
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else if (addr >= 0x400) {
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// Buf B
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}
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else {
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// Buf A
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/*FILE *f = fopen("buf_a.dmp", "ab");
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if (f) {
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fwrite(&data, 1, 1, f);
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fclose(f);
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}*/
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}
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}
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void sound_dma_write_raw(uint16_t addr, uint8_t sz, uint32_t data)
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{
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int32_t i;
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slog("sound_dma_write: addr=0x%04x sz=%u dat=0x%x\n", addr, sz, data);
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for (i = (sz-1) * 8; i >= 0; i -= 8)
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sound_dma_write_byte(addr, (data >> i) & 0xff);
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}
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uint32_t sound_dma_read_raw(uint16_t addr, uint8_t sz)
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{
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uint32_t i, result = 0;
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slog("sound_dma_read: addr=0x%04x sz=%u\n", addr, sz);
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for (i=0; i<sz; i++) {
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result <<= 8;
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result |= sound_dma_read_byte(addr + i);
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}
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return result;
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} |