1 /* 2 * Long integer shift. This is different from the generic 32/64-bit 3 * binary operations because vAA/vBB are 64-bit but vCC (the shift 4 * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low 5 * 6 bits. 6 */ 7 /* shl-long vAA:vBB(rARG1:rARG0), vCC(a2) - result in (rRESULT1:rRESULT0) */ 8 sll rRESULT0, rARG0, a2 # rlo<- alo << (shift&31) 9 not rRESULT1, a2 # rhi<- 31-shift (shift is 5b) 10 srl rARG0, 1 11 srl rARG0, rRESULT1 # alo<- alo >> (32-(shift&31)) 12 sll rRESULT1, rARG1, a2 # rhi<- ahi << (shift&31) 13 or rRESULT1, rARG0 # rhi<- rhi | alo 14 andi a2, 0x20 # shift< shift & 0x20 15 movn rRESULT1, rRESULT0, a2 # rhi<- rlo (if shift&0x20) 16 movn rRESULT0, zero, a2 # rlo<- 0 (if shift&0x20) 17 RETURN 18
