Compiler Support on StarCore
SP
On function entry
4
4
4
2
SP 
2
Prior to function call
Status Register
Return Address
&z[0]
M
}
}
Pushed on stack by jsr/bsr instruction
Parameters pushed onto stack prior to jsr/b
Figure 12. Stack Contents on Entry to advecs()
4. In the box provided here, write what you think the offsets should be:
Z_OFFSET
M_OFFSET
5.Modify the addvecs.asm file to incorporate your offset values.
6.Build the code.
7.Run the code: runsc100 Ex8.eld.
8.The following output should be displayed:
z = [3, 5, 7, 9, 11, 13, 15, 17] sum = 80
9.If the above output is displayed, your offset values are correct.
10.Rebuild the code, this time with the
11.Open the generated assembly file Ex8.sl, and find the call to addvecs().
12.Find the instructions that put z[] and M onto the stack just prior to the function call. Write the offsets in the box provided here:
Z_OFFSET
M_OFFSET
Introduction to the SC140 Tools | 25 |