mirror of
https://github.com/pruten/shoebill.git
synced 2024-06-10 18:29:29 +00:00
6773dd6020
- Fewer FPU-related crashes - Fewer video driver-related crashes - Cleaned up the SDL GUI - Bumped up cocoa GUI to v0.0.4
51 lines
1.0 KiB
C
51 lines
1.0 KiB
C
#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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} |