📄 memtest1.s
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.text start: mov $0x1000,%r8 mov $0x0a,%ecxinit_page: dec %ecx jne no_io mov $0x0,%al out %al,$0x80 mov $0x0a,%ecxno_io: mov %r8,(%r8) add $0x1000,%r8 cmp $0x8000000,%r8 jne init_page mov $0x1000,%r8 mov $0x0a,%ecxtest_loop: dec %ecx jne no_io2 mov $0x0,%al out %al,$0x80 mov $0x0a,%ecxno_io2: mov (%r8),%r9 cmp %r8,%r9 jne err add $0x1000,%r8 cmp $0x8000000,%r8 jne test_loop mov $0x1000,%r8 jmp test_looperr: mov $0xffffffffffffffff,%r12 mov $0xffffffffffffffff,%r13 mov $0x0,%al out %al,$0x80 jmp err
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