mirror of https://github.com/jscrane/r65emu.git
48 lines
933 B
C++
48 lines
933 B
C++
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#include <SPI.h>
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#include <SpiRAM.h>
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#include "memory.h"
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#include "spiram.h"
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#include "hardware.h"
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extern SPIClass SPIRAM_DEV;
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SpiRAM spiRam(SPIRAM_DEV, SPIRAM_CS);
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void spiram::begin(byte cs, int module)
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{
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SPI_for_SD.setModule(module);
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SPI_for_SD.setClockDivider(SPI_CLOCK_DIV16);
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SPI_for_SD.setDataMode(SPI_MODE0);
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pinMode(PF_3, OUTPUT);
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pinMode(cs, OUTPUT);
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}
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void spiram::operator=(byte b)
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{
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spiRam.write_byte(_acc, b);
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}
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spiram::operator byte()
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{
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return spiRam.read_byte(_acc);
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}
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void spiram::checkpoint(Stream &s)
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{
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char buf[Memory::page_size];
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for (int i = 0; i < pages(); i++) {
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spiRam.read_stream(i * Memory::page_size, buf, sizeof(buf));
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s.write((byte *)buf, sizeof(buf));
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}
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}
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void spiram::restore(Stream &s)
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{
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char buf[Memory::page_size];
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for (int i = 0; i < pages(); i++) {
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s.readBytes(buf, sizeof(buf));
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spiRam.write_stream(i * Memory::page_size, buf, sizeof(buf));
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}
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}
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