
FUJISTU LIMITED PRELIMINARY AND CONFIDENTIAL
MB86295S <Coral-LP>
109
Specification Manual Rev1.1
OverlapXYOfft (Format5)
31
24 23
16 15
0
OverlapXYOfft
Command
Reserved
Y Offset
X Offset
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.
Command:
Command
Code
Explanation
ShadowXY
0000_0000
ShadowXY command sets the XY o ffset of the shade
primitive relative to the body primitive.
ShadowXYcompsition
0000_0001
ShadowXYcomposition command sets the XY offset
of the shade synthetic primitive relative to the body
primitive.
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.
OverlapZOfft (Format5)
31
24 23
16 15
0
OverlapZOfft
Command
Reserved
don’t care
Z Offset
Note: When MDR0 ZP = 1, only lower 8 bits are enabled.
31
24 23
16 15
0
OverlapZOfft
Packed_ONBS
Reserved
S
_Z Offset
B
_Z Offset
N
_Z Offset
O
_Z Offset
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
Command:
Command
Code
Explanation
Origin
0000_0000
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
0000_0001
NonTopLeft command sets the Z offset of the interpolation
primitive, with the top-left non-applicable.
Border
0000_0010
Border command sets the Z offset of the edge primitive.
Shadow
0000_0011
Shadow command sets the Z offset of the shade primitive.
Packed_ONBS
0000_0111
Packed_ONBS command sets the above four types of Z
offsets.