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Set carry flag before calling INT 15,e801 and INT 15,e820.
Ignore carry flag for INT 15,88; the Ralf Brown interrupt list says that CF is unreliable for this call.
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@ -76,6 +76,7 @@ static unsigned int extmemsize_e801 ( void ) {
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unsigned int extmem;
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REAL_EXEC ( rm_mem_e801,
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"stc\n\t"
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"int $0x15\n\t"
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"pushfw\n\t"
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"popw %w0\n\t",
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@ -111,10 +112,8 @@ static unsigned int extmemsize_88 ( void ) {
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uint16_t extmem;
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REAL_EXEC ( rm_mem_88,
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"int $0x15\n\t"
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"jnc 1f\n\t"
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"xorw %%ax, %%ax\n\t"
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"\n1:\n\t",
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/* Ignore CF; it is not reliable for this call */
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"int $0x15\n\t",
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1,
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OUT_CONSTRAINTS ( "=a" ( extmem ) ),
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IN_CONSTRAINTS ( "a" ( 0x8800 ) ),
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@ -155,6 +154,7 @@ static int meme820 ( struct memory_region *memmap, unsigned int entries ) {
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do {
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REAL_EXEC ( rm_mem_e820,
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"stc\n\t"
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"int $0x15\n\t"
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"pushfw\n\t"
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"popw %w0\n\t",
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