projects / OpenSPARC-T2-DV / blame
| Commit | Line | Data |
|---|---|---|
| 86530b38 AT |
1 | # |
| 2 | # collection of utility functions | |
| 3 | # | |
| 4 | ||
| 5 | pfeSim = None | |
| 6 | ||
| 7 | def initSamUtility(sim): | |
| 8 | """ | |
| 9 | this function must be called first before other functions in this file | |
| 10 | can be used. | |
| 11 | """ | |
| 12 | global pfeSim | |
| 13 | pfeSim = sim | |
| 14 | ||
| 15 | ||
| 16 | def lstmode(on=None): | |
| 17 | """ | |
| 18 | set display mode: | |
| 19 | 0 - silent mode | |
| 20 | 1 - display instr & register delta | |
| 21 | 2 - display instr | |
| 22 | """ | |
| 23 | global pfeSim | |
| 24 | for s in pfeSim.s: | |
| 25 | s.lstmode(on) | |
| 26 | ||
| 27 | ||
| 28 | def stepx(sid=[-1], n=1, d=1): | |
| 29 | """ | |
| 30 | execute instructions among strands in round-rabin order | |
| 31 | sid: the strands to be included in the execution, -1 means all strands | |
| 32 | n: number of instructions to be executed per strand | |
| 33 | d: number of instructions to be executed per iteration | |
| 34 | """ | |
| 35 | global pfeSim | |
| 36 | ss = [] | |
| 37 | if -1 in sid: | |
| 38 | # include all strands | |
| 39 | ss = pfeSim.s | |
| 40 | else: | |
| 41 | # otherwise only selected strand(s) | |
| 42 | for id in sid: | |
| 43 | ss.append(pfeSim.s[id]) | |
| 44 | while n > d: | |
| 45 | for s in ss: | |
| 46 | brk = s.step(d) | |
| 47 | if brk > 0: | |
| 48 | # this strand hits a breakpoint, stop execution, | |
| 49 | # return remaining instruction count | |
| 50 | return n-(d-brk) | |
| 51 | n -= d | |
| 52 | for s in ss: | |
| 53 | brk = s.step(n) | |
| 54 | if brk > 0: | |
| 55 | # this strand hits a breakpoint, stop execution, | |
| 56 | # return remaining instruction count | |
| 57 | return brk |