I have to do a homework assignment in which the program will receive 2 numbers from the keyboard and add and multiply them, but I don’t know how. So far, I've done this:
ORG $1000
START:
LEA INPUT, A1
MOVE.B #14, D0
TRAP #15
MOVE.B #4, D0
TRAP #15
JSR SHOWNEWLINE
LEA INPUT, A1
MOVE.B #14, D0
TRAP #15
MOVE.B #4, D0
TRAP #15
JSR SHOWNEWLINE
ADDX D0, D0
MOVE.B #14, D5
TRAP #15
SIMHALT
SHOWNEWLINE:
LEA NEWLINE, A3
MOVE.B #0, D1
MOVE.B #0, D0
TRAP #15
RTS
INPUT DC.B 'Enter numbers', 0
NEWLINE DC.B ''
END START
It should be done in the EASy68K simulator.
Thank you!
My deadline was until midnight so I had to find a solution. Since it was not explained to us in the lecture how to use EASy86k, I tried to find help here. I hope this can help beginners.
ORG $1000
START:
LEA INPUT1, A1
MOVE.B #14, D0
MOVE.B #14, D1
TRAP #15
MOVE.B #4, D0
TRAP #15
MOVE.B D1, D2
LEA INPUT2, A1
MOVE.B #14, D0
MOVE.B #14, D1
TRAP #15
MOVE.B #4, D0
TRAP #15
MOVE.B D1, D3
JSR SHOWNEWLINE
LEA SUM, A1
MOVE.B #14, D0
MOVE.B #14, D1
TRAP #15
MOVE.B D2, D4
ADDX D3,D4
MOVE.B D4, D1
MOVE.B #3, D0
TRAP #15
JSR SHOWNEWLINE
LEA MULTIPLICATION, A1
MOVE.B #14, D0
MOVE.B #14, D1
TRAP #15
MOVE.B D2, D5
MULS D3,D5
MOVE.B D5, D1
MOVE.B #3, D0
TRAP #15
SIMHALT
SHOWNEWLINE:
LEA NEWLINE, A3
MOVE.B #0, D1
MOVE.B #0, D0
TRAP #15
RTS
INPUT1 DC.B 'Enter 1st number: ', 0
INPUT2 DC.B 'Enter 2nd number: ', 0
SUM DC.B 'Sum: ', 0
MULTIPLICATION DC.B 'Multiplication: ', 0
NEWLINE DC.B ''
END START