| %default { "func":"MterpDoPackedSwitch" } | |
| /* | |
| * Handle a packed-switch or sparse-switch instruction. In both cases | |
| * we decode it and hand it off to a helper function. | |
| * | |
| * We don't really expect backward branches in a switch statement, but | |
| * they're perfectly legal, so we check for them here. | |
| * | |
| * for: packed-switch, sparse-switch | |
| */ | |
| /* op vAA, +BBBB */ | |
| FETCH w0, 1 // w0<- bbbb (lo) | |
| FETCH w1, 2 // w1<- BBBB (hi) | |
| lsr w3, wINST, #8 // w3<- AA | |
| orr w0, w0, w1, lsl #16 // w0<- BBBBbbbb | |
| GET_VREG w1, w3 // w1<- vAA | |
| add x0, xPC, w0, lsl #1 // w0<- PC + BBBBbbbb*2 | |
| bl $func // w0<- code-unit branch offset | |
| sbfm xINST, x0, 0, 31 | |
| b MterpCommonTakenBranchNoFlags |