+ store_vector4( &inst->DstReg, state, t );
+ }
+ break;
+ case VP_OPCODE_FLR: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector4( &inst->SrcReg[0], state, t );
+ t[0] = FLOORF(t[0]);
+ t[1] = FLOORF(t[1]);
+ t[2] = FLOORF(t[2]);
+ t[3] = FLOORF(t[3]);
+ store_vector4( &inst->DstReg, state, t );
+ }
+ break;
+ case VP_OPCODE_FRC: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector4( &inst->SrcReg[0], state, t );
+ t[0] = t[0] - FLOORF(t[0]);
+ t[1] = t[1] - FLOORF(t[1]);
+ t[2] = t[2] - FLOORF(t[2]);
+ t[3] = t[3] - FLOORF(t[3]);
+ store_vector4( &inst->DstReg, state, t );
+ }
+ break;
+ case VP_OPCODE_EX2: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector1( &inst->SrcReg[0], state, t );
+ t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(2.0, t[0]);
+ store_vector4( &inst->DstReg, state, t );
+ }
+ break;
+ case VP_OPCODE_LG2: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector1( &inst->SrcReg[0], state, t );
+ t[0] = t[1] = t[2] = t[3] = LOG2(t[0]);
+ store_vector4( &inst->DstReg, state, t );
+ }
+ break;
+ case VP_OPCODE_POW: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4], u[4];
+ fetch_vector1( &inst->SrcReg[0], state, t );
+ fetch_vector1( &inst->SrcReg[1], state, u );
+ t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(t[0], u[0]);
+ store_vector4( &inst->DstReg, state, t );
+ }
+ break;
+ case VP_OPCODE_XPD: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4], u[4], cross[4];
+ fetch_vector4( &inst->SrcReg[0], state, t );
+ fetch_vector4( &inst->SrcReg[1], state, u );
+ cross[0] = t[1] * u[2] - t[2] * u[1];
+ cross[1] = t[2] * u[0] - t[0] * u[2];
+ cross[2] = t[0] * u[1] - t[1] * u[0];
+ store_vector4( &inst->DstReg, state, cross );
+ }
+ break;
+ case VP_OPCODE_SWZ: /* GL_ARB_vertex_program */
+ {
+ const struct vp_src_register *source = &inst->SrcReg[0];
+ const GLfloat *src = get_register_pointer(source, state);
+ GLfloat result[4];
+ GLuint i;
+
+ /* do extended swizzling here */
+ for (i = 0; i < 3; i++) {
+ if (source->Swizzle[i] == SWIZZLE_ZERO)
+ result[i] = 0.0;
+ else if (source->Swizzle[i] == SWIZZLE_ONE)
+ result[i] = -1.0;
+ else
+ result[i] = -src[source->Swizzle[i]];
+ if (source->Negate)
+ result[i] = -result[i];
+ }
+ store_vector4( &inst->DstReg, state, result );