diff options
Diffstat (limited to 'vm/mterp/armv6t2/OP_USHR_LONG_2ADDR.S')
| -rw-r--r-- | vm/mterp/armv6t2/OP_USHR_LONG_2ADDR.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/vm/mterp/armv6t2/OP_USHR_LONG_2ADDR.S b/vm/mterp/armv6t2/OP_USHR_LONG_2ADDR.S new file mode 100644 index 0000000..a1fcef4 --- /dev/null +++ b/vm/mterp/armv6t2/OP_USHR_LONG_2ADDR.S @@ -0,0 +1,27 @@ +%verify "executed" + /* + * Long integer shift, 2addr version. vA is 64-bit value/result, vB is + * 32-bit shift distance. + */ + /* ushr-long/2addr vA, vB */ + mov r3, rINST, lsr #12 @ r3<- B + ubfx r9, rINST, #8, #4 @ r9<- A + GET_VREG(r2, r3) @ r2<- vB + add r9, rFP, r9, lsl #2 @ r9<- &fp[A] + and r2, r2, #63 @ r2<- r2 & 0x3f + ldmia r9, {r0-r1} @ r0/r1<- vAA/vAA+1 + + mov r0, r0, lsr r2 @ r0<- r2 >> r2 + rsb r3, r2, #32 @ r3<- 32 - r2 + orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2)) + subs ip, r2, #32 @ ip<- r2 - 32 + FETCH_ADVANCE_INST(1) @ advance rPC, load rINST + movpl r0, r1, lsr ip @ if r2 >= 32, r0<-r1 >>> (r2-32) + mov r1, r1, lsr r2 @ r1<- r1 >>> r2 + b .L${opcode}_finish +%break + +.L${opcode}_finish: + GET_INST_OPCODE(ip) @ extract opcode from rINST + stmia r9, {r0-r1} @ vAA/vAA+1<- r0/r1 + GOTO_OPCODE(ip) @ jump to next instruction |