Fujitsu MB86R02 Jade-D Hardware Manual page 539

Graphics controller

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MB86R02 'Jade-D' Hardware Manual V1.64

OverlapXYOfft (Format5)

OverlapXYOfft

The OverlapXYOfft command sets the XY offset of the shade primitive relative to the body

primitive at shading drawing. Shadow shape is same as body.

ShadowXYcompsition

OverlapZOfft (Format5)

OverlapZOfft

Note: When MDR0 ZP = 1, only lower 8 bits are enabled.

OverlapZOfft

The OverlapZOfft command sets the Z offset of the shade primitive relative to the body primitive,

sets the Z-offset of the edge primitive relative to the body primitive and sets the Z offset of the

interpolation primitive relative to the body primitive, with the top-left rule non-applicable in effect.

At this time, the following relationship must be satisfied when, for example, GREATER is specified

for the Z value comparison mode:

Body primitive > Top-left rule non-applicable interpolation primitive

> Edge primitive > Shade primitive

ShadowXY command sets the XY offset of the shade

primitive relative to the body primitive.

ShadowXYcomposition command sets the XY offset of

the shade synthetic primitive relative to the body

It command synthesizes a shade from the relationship

between the XY offset set using ShadowXY and this

XY offset. This command is enabled for only lines.

Origin command sets the Z offset of the body primitive. When

drawing one primitive below the other primitive (for example,

when drawing a solid intersection), this Z offset is changed.

When drawing an ordinary intersection, set the same Z offset

as other primitives.

NonTopLeft command sets the Z offset of the interpolation

primitive, with the top-left non-applicable.

Border command sets the Z offset of the edge primitive.

Shadow command sets the Z offset of the shade primitive.

Packed_ONBS command sets the above four types of Z