docs

doc/assembly.md

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+# Assembly Instructions
+
+## About interrupts
+cli: clear interrupt flags
+sti: set interrupt flags

doc/bios_functions.md

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+# BIOS Functions
+## int 0x10
+
+### print string
+bp: string address
+ah: 0x13 // write string
+al: 0x01 // update cursor after printing
+bh: 0x00 // page number?
+bl: 0x0f // color
+cx: $char_nums_to_print
+
+### print char
+ah: 0x0e // print char
+al: $char_to_print
+bh: 0x00 // page number?
+
+## int 0x13
+
+### read LBA
+si: $read_data_pack_address
+ah: 0x42 // read LBA
+dl: $drive_number // $0x80 + \[drive_number\]
+
+check error flag after performing interrupt