After PR #733 landed the bulk of the RISC-V V Vector extension, several V 1.0 instruction families are still unimplemented; the decoder currently rejects them with illegal-instruction. Implement each, with EMUL / overlap / alignment validation matching the existing helpers, plus the corresponding execution path (not just decode wiring):
vmv<nr>r.v whole-register move (V 1.0 §16.6) — src/decode_v.c op_100111 case 3. Helpers rvv_whole_reg_load / rvv_whole_reg_store in src/rv32_v_template.c already exist; this op needs its own register-to-register move path with vstart / evl handling per spec.vfmv.s.f / vfmv.f.s scalar-FP move (V 1.0 §16.2) — src/decode_v.c op_010000 cases 1 and 5 (VWFUNARY0 / VRFUNARY0).vzext.vf{2,4,8} / vsext.vf{2,4,8} integer extension (V 1.0 §11.3) — src/decode_v.c op_010010 case 2 (VXUNARY0).vfcvt.* / vfwcvt.* (V 1.0 §13.17, §13.18) and vfncvt.* (§13.19) FP conversions — src/decode_v.c op_010010 case 1 (VFUNARY0); reuse scalar softfloat conversion paths.vfsqrt.v (§13.8), vfrsqrt7.v (§13.9), vfrec7.v (§13.10), vfclass.v (§13.14) — src/decode_v.c op_010011 case 1 (VFUNARY1).
Each should land with smoke coverage in tests/rvv-smoke.S.
Tracked under the umbrella issue #504.
After PR #733 landed the bulk of the RISC-V V Vector extension, several V 1.0 instruction families are still unimplemented; the decoder currently rejects them with illegal-instruction. Implement each, with EMUL / overlap / alignment validation matching the existing helpers, plus the corresponding execution path (not just decode wiring):
vmv<nr>r.vwhole-register move (V 1.0 §16.6) —src/decode_v.cop_100111case 3. Helpersrvv_whole_reg_load/rvv_whole_reg_storeinsrc/rv32_v_template.calready exist; this op needs its own register-to-register move path withvstart/evlhandling per spec.vfmv.s.f/vfmv.f.sscalar-FP move (V 1.0 §16.2) —src/decode_v.cop_010000cases 1 and 5 (VWFUNARY0 / VRFUNARY0).vzext.vf{2,4,8}/vsext.vf{2,4,8}integer extension (V 1.0 §11.3) —src/decode_v.cop_010010case 2 (VXUNARY0).vfcvt.*/vfwcvt.*(V 1.0 §13.17, §13.18) andvfncvt.*(§13.19) FP conversions —src/decode_v.cop_010010case 1 (VFUNARY0); reuse scalar softfloat conversion paths.vfsqrt.v(§13.8),vfrsqrt7.v(§13.9),vfrec7.v(§13.10),vfclass.v(§13.14) —src/decode_v.cop_010011case 1 (VFUNARY1).Each should land with smoke coverage in
tests/rvv-smoke.S.Tracked under the umbrella issue #504.