notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 4a71579b PC |
1 | .data 16 |
| 2 | ok: | |
| 3 | .c "ok" | |
| 4 | ||
| 5 | .code | |
| 6 | jmpi main | |
| 7 | ||
| 8 | /* | |
| 9 | * very simple test on purpose because otherwise it would not trigger | |
| 10 | * the bug where the retr %r0 or retr_d %f0 would be omitted because | |
| 11 | * the argument was already the return register, but the register end | |
| 12 | * clobbered by another instruction, like the div*, and the wrong | |
| 13 | * value returned because the retr* was removed and this way, lost | |
| 14 | * information that the register was live at function exit. | |
| 15 | */ | |
| 16 | ||
| 17 | check_r0: | |
| 18 | prolog | |
| 19 | movi %r0 1 | |
| 20 | movi %r2 10 | |
| 21 | // on x86 this changes %rax on other arches could use %r0 as temporary | |
| 22 | divi %r1 %r2 3 | |
| 23 | // %r0 must still be 1 | |
| 24 | retr %r0 | |
| 25 | epilog | |
| 26 | ||
| 27 | check_f0: | |
| 28 | prolog | |
| 29 | movi_d %f0 0.5 | |
| 30 | movi_d %f2 10 | |
| 31 | divi_d %f1 %f2 3 | |
| 32 | retr_d %f0 | |
| 33 | epilog | |
| 34 | ||
| 35 | main: | |
| 36 | prolog | |
| 37 | calli check_r0 | |
| 38 | retval %r1 | |
| 39 | beqi r0_ok %r1 1 | |
| 40 | calli @abort | |
| 41 | r0_ok: | |
| 42 | calli check_f0 | |
| 43 | retval_d %f1 | |
| 44 | beqi_d f0_ok %f1 0.5 | |
| 45 | calli @abort | |
| 46 | f0_ok: | |
| 47 | prepare | |
| 48 | pushargi ok | |
| 49 | finishi @puts | |
| 50 | ret | |
| 51 | epilog |