$DEF R0=X'0080'_0, R1=X'0080'_1
$DEF R2=X'0080'_2, R3=X'0080'_3
$DEF R4=X'0080'_4, R5=X'0080'_5
$DEF R6=X'0080'_6, R7=X'0080'_7
$DEF R8=X'0080'_8, R9=X'0080'_9
$DEF R10=X'0080'_10, R11=X'0080'_11
$DEF R12=X'0080'_12, R13=X'0080'_13
$DEF R14=X'0080'_14, PC=X'0080'_15
$DEF SKM=X'F880'_X'0101'
$DEF READ=X'F808'_X'1121', WRITE=X'F808'_X'1161'
$DEF READC=X'F808'_X'11A1', WRITEC=X'F808'_X'11E1'
$DEF READSR=X'F800'_X'1130'
$DEF LDS=X'F882'_X'2115', STO=X'F882'_X'211D'
$DEF LDSD=X'F882'_X'2111', STOD=X'F882'_X'2119'
$DEF SRA=X'F848'_X'3191', SRC=X'F848'_X'3111'
$DEF LOADI=X'F880'_X'6101'
$DEF SKNE=X'F880'_X'7101'
$DEF ADDI=X'F880'_X'8101'
$DEF ANDI=X'F880'_X'9101'
$DEF REC=X'F882'_X'A115', DUMP=X'F882'_X'A11D'
$DEF RECV=X'F802'_X'A101', DUMPV=X'F802'_X'A109'
$DEF MOVE=X'F888'_X'B111'
$DEF TEST=X'F488'_X'C911', TESTH=X'F488'_X'C111'
$DEF MODR=X'F488'_X'D111', MODS=X'F488'_X'D911'
$DEF TRANS=X'F888'_X'E111'
$DEF DO=X'F488'_X'F911', DOH=X'F488'_X'F111'
$DEF OR=0, AND=1, NOT=2, LOAD=3
$DEF ADD=4, SUB=5, NAND=6, XOR=7
