$P0000$P0124 8255 汇编

$P0000
$P0124
$P0203
$P0310
$P0400
$P0520
$P0601

$M00018001
$M0101ED82
$M0200C050

$M10001001  //INPUT

$M1201ED95  //PC->AR   PC+1

$M1500E016  //RAM->BUS  BUS->AR
$M16030401  //RI->[P]  д RS-B 

$M1101ED93  //PC->AR   PC+1
$M1300E014  //RAM->BUS  BUS->AR
$M14011001  //[P]->RI  ¶Á LDRi

$M1701ED18  //PC->AR   PC+1
$M1800E019  //RAM->BUS  BUS->AR RAM¶Á LDAR
$M19030401  //RI->[P]  д RS-B