38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
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void ReadFromCMOS(unsigned char array[])
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{
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unsigned char tvalue, index;
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for (index = 0; index < 128; index++)
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{
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asm(
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"cli\n\t" // Disable interrupts
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"mov al, index\n\t" // Move index address
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// since the 0x80 bit of al is not set, NMI is active
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"out 0x70,al\n\t" // Copy address to CMOS register
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// some kind of real delay here is probably best
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"in al,0x71\n\t" // Fetch 1 byte to al
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"sti\n\t" // Enable interrupts
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"mov tvalue,al\n\t");
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array[index] = tvalue;
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}
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}
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void WriteTOCMOS(unsigned char array[])
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{
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unsigned char index;
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for(index = 0; index < 128; index++)
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{
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unsigned char tvalue = array[index];
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asm("cli\n\t" // Clear interrupts
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"mov al,index\n\t" // move index address
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"out 0x70,al\n\t" // copy address to CMOS register
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// some kind of real delay here is probably best
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"mov al,tvalue\n\t" // move value to al
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"out 0x71,al\n\t" // write 1 byte to CMOS
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"sti\n\\t" ); // Enable interrupts
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}
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}
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