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DP4I? => DPHI (tested, confirmed)
| 1
| 1
| DPH
| DPH
| Computes dot product on 3-component vectors, with SRC2 homogenous; DST = SRC1.SRC2
| Computes dot product on a 4-component vector and a 3-component one with 1.0 appended to it; DST = SRC1.SRC2 (with SRC2 homogenous)
|-
|-
| 0x04
| 0x04
| 0x18
| 0x18
| 1i
| 1i
| DP4I?
| DPHI
| Computes dot product on 4-component vectors; DST = SRC1.SRC2 ?
| Computes dot product on a 4-component vector and a 3-component one with 1.0 appended to it; DST = SRC1.SRC2 (with SRC2 homogenous)
|-
|-
| 0x1A
| 0x1A