Commit | Line | Data |
---|---|---|
c906108c SS |
1 | .include "t-macros.i" |
2 | ||
3 | start | |
4 | ||
5 | PSW_BITS = PSW_FX|PSW_ST|PSW_SM | |
6 | loadpsw2 PSW_BITS | |
7 | ||
8 | ;; Test normal sadd | |
9 | ||
10 | loadacc2 a0 0x00 0x7fff 0xffff | |
11 | loadacc2 a1 0xff 0x8000 0x0000 | |
12 | sadd a1, a0 | |
13 | checkacc2 1 a0 0x00 0x7fff 0xffff | |
14 | checkacc2 2 a1 0xff 0x8000 0x7fff | |
15 | ||
16 | ;; Test overflow | |
17 | ||
18 | loadacc2 a0 0x00 0x0000 0x0000 | |
19 | loadacc2 a1 0x01 0x8000 0x0000 | |
20 | sadd a1, a0 | |
21 | checkacc2 3 a0 0x00 0x0000 0x0000 | |
22 | checkacc2 4 a1 0x00 0x7fff 0xffff | |
23 | ||
24 | loadacc2 a0 0x00 0xffff 0xffff | |
25 | loadacc2 a1 0x00 0xffff 0xffff | |
26 | sadd a1, a0 | |
27 | checkacc2 5 a1 0x00 0x7fff 0xffff | |
28 | checkacc2 6 a0 0x00 0xffff 0xffff | |
29 | ||
30 | ;; Test underflow | |
31 | ||
32 | loadacc2 a0 0x00 0x0000 0x0000 | |
33 | loadacc2 a1 0x80 0x8000 0x0000 | |
34 | sadd a1, a0 | |
35 | checkacc2 7 a0 0x00 0x0000 0x0000 | |
36 | checkacc2 8 a1 0xff 0x8000 0x0000 | |
37 | ||
38 | exit0 |