Answer :- The CPU12 assembly code can be written as-
Loop_Main : ; label named as Loop_Main
LDAA $0067 ; register A = temperature value from ADC
LDAB #$5A ; register B = 0x5A = 90
CBA ; compare A and B register value
BLT Make_ON ; if temperature less than 900, goto label named as Make_ON
LDAB #$64 ; register B = 0x64 = 100
CBA ; compare A and B register value
BGE Make_OFF ; if temperature greater than equal to1000, goto label named as Make_OFF
JMP Loop_Main ; do infinite looping of this code
Make_ON : ; label named as Make_ON
LDAA #$01 ; register A = 0x01
STAA $0068 ; write the value in memory location 0x0068 to make machine ON
JMP Loop_main ; go to label named as Loop_main
Make_OFF : ; label named as Make_OFF
LDAA #$00 ; register A = 0x00
STAA $0068 ; write the value in memory location 0x0068 to make machine OFF
JMP Loop_main ; go to label named as Loop_main
.Assume: We are using a CPU12 as a coffee maker controller. An ADC provides the temperature of the water in °C at memory location $0067. Writing $01 to memory location $0068 turns the coffee maker he...