Assembler Code

Explanation
LDIL$2000,8;            R8:  =  $2000
LDO32(8),8;             R8:  =  R8 + 32
LDW-12(0,5),21;         R21: =  memory(R5-12)
STH8,0, (0,21); memory(R21): =  R8
LDH-8(0,5),22;          R22: =  memory(R5-8)
EXTRS22,31,16,22;       R22: =  sign-extended(R22)
LDO-1(22),22;           R22: =  R22 - 1