Question
With the following Assembly instructions: ADD (1, ACC = ACC +arg) BR (1, jump to arg) BRNEG (1, jump to arg if ACC < 0)
With the following Assembly instructions:
ADD (1, ACC = ACC +arg) BR (1, jump to arg) BRNEG (1, jump to arg if ACC < 0) BRZNEG (1, jump to arg if ACC <= 0)
BRPOS (1, jump to arg if ACC > 0)
BRZPOS (1, jump to arg if ACC >= 0)
BRZERO (1, jump to arg if ACC == 0) COPY (2, arg1 = arg2) DIV (1, ACC = ACC / arg) MULT (1, ACC = ACC * arg READ (1, arg=input integer) WRITE (1, put arg to output as integer) STOP (0, stop program) STORE (1, arg = ACC) SUB (1, ACC = ACC - arg) NOOP (0, nothing) LOAD (1, ACC=arg) ADD, DIV, MULT, WRITE, LOAD, SUB can take either variable or immediate value as the arg: immediate value is positive integer or negative integer PUSH (0, tos++) POP (0, tos{) STACKW (1,stack[tos-arg]=ACC) STACKR (1,ACC=stack[tos-arg]) PUSH/POP are only means to reserve/delete automatic storage. STACKW/STACKR n - these are stack write/read instructions. n must be a non-negative number, and the access is to nth element down from TOS, top of stack NOTE: tos points to the topmost element on the stack Storage directives XXX val XXX is a name val is the initial value all storage and ACC size are signed 2 bytes Storage name and label are all names starting with latter and following with letters and digits up to eight total
Assumptions any proper format within line, tokens separated by BS, blank space all storage directives are listed following the last STOP all names start with letters and contain more letters or digits
Write a program that reads in all values and AFTER the -1 is entered, it should display all of the numbers entered followed by printing out the sum of these numbers The stack must be used for this program.
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