mirror of
https://github.com/jscrane/r65emu.git
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checkpointing
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parent
e695cb91ab
commit
1df2a2d030
30
hardware.cpp
30
hardware.cpp
@ -36,25 +36,27 @@ bool hardware_init(CPU &cpu) {
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}
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void hardware_checkpoint(Stream &s) {
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_cpu->checkpoint(s);
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Memory::Device *d = 0;
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for (unsigned i = 0; i < 0x10000; i += Memory::page_size) {
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unsigned ds = 0;
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for (unsigned i = 0; i < 0x10000; i += ds) {
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Memory::Device *dev = memory.get(i);
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if (dev && dev != d) {
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d = dev;
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d->checkpoint(s);
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}
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if (dev) {
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dev->checkpoint(s);
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ds = dev->pages() * Memory::page_size;
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} else
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ds = Memory::page_size;
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}
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_cpu->checkpoint(s);
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}
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void hardware_restore(Stream &s) {
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_cpu->restore(s);
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Memory::Device *d = 0;
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for (unsigned i = 0; i < 0x10000; i += Memory::page_size) {
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unsigned ds = 0;
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for (unsigned i = 0; i < 0x10000; i += ds) {
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Memory::Device *dev = memory.get(i);
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if (dev && dev != d) {
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d = dev;
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d->restore(s);
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}
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if (dev) {
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dev->restore(s);
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ds = dev->pages() * Memory::page_size;
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} else
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ds = Memory::page_size;
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}
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_cpu->restore(s);
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}
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34
spiram.cpp
34
spiram.cpp
@ -10,38 +10,38 @@ 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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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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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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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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char buf[Memory::page_size];
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for (int i = 0; i < pages(); i++) {
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spiRam.read_stream(i * 256, 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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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 * 256, buf, sizeof(buf));
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}
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}
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