| # "D" Standard Extension for Double-Precision Floating-Point. | |
| # Version 2.2 | |
| fcvt.l.d | r | rs1(fp) rm rd | 110000100010.............1010011 | |
| fcvt.lu.d | r | rs1(fp) rm rd | 110000100011.............1010011 | |
| fmv.x.d | r | rs1(fp) rd | 111000100000.....000.....1010011 | |
| fcvt.d.l | r | rs1 rm rd(fp) | 110100100010.............1010011 | |
| fcvt.d.lu | r | rs1 rm rd(fp) | 110100100011.............1010011 | |
| fmv.d.x | r | rs1 rd(fp) | 111100100000.....000.....1010011 |