1 %default { "func":"MterpDoPackedSwitch" } 2 /* 3 * Handle a packed-switch or sparse-switch instruction. In both cases 4 * we decode it and hand it off to a helper function. 5 * 6 * We don't really expect backward branches in a switch statement, but 7 * they're perfectly legal, so we check for them here. 8 * 9 * for: packed-switch, sparse-switch 10 */ 11 /* op vAA, +BBBBBBBB */ 12 .extern $func 13 lh a0, 2(rPC) # a0 <- bbbb (lo) 14 lh a1, 4(rPC) # a1 <- BBBB (hi) 15 srl a3, rINST, 8 # a3 <- AA 16 ins a0, a1, 16, 16 # a0 <- BBBBbbbb 17 GET_VREG a1, a3 # a1 <- vAA 18 dlsa a0, a0, rPC, 1 # a0 <- PC + BBBBbbbb*2 19 jal $func # v0 <- code-unit branch offset 20 move rINST, v0 21 b MterpCommonTakenBranchNoFlags 22
