Samsung S5PC100, User Manual

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S5PC100 USER’S MANUAL (REV1.0) 3D-ACCELERATOR
9.6-33
HI_ATTRIBn Bit Description Reset Value
LastAttr [31] 0b = indicates the ATTRIB n is used
1b = indicates the ATTRIB n is the last attribute
After reset, all the “last” value is zero, which means one attribute,
is used by default.
Ex) HI_ATTRIB0[31] = 0, HI_ATTRIB1[31] = 0, HI_ATTRIB2[31]
= 1, HI_ATTRIB3~9[31] = don’t care
Æ
HI_ATTRIB0 ~ 2 are
used.
1b
Reserved [30:16] Reserved 0
Dt [15:12] Each component of attribute n is transferred as
Bit Data Type Range
0000 byte -127 ~ 128
0001 short -23768 ~ 32767
0010 int -2147483648 ~ 2147483647
0011 fixed -32768 ~ 32768
0100 unsigned byte 0 ~ 255
0101 unsigned sort 0 ~ 65535
0110 unsigned int 0 ~ 4294967295
0111 float IEEE 754 single precision
1000 normalized byte -1.0f ~ 1.0f
1001 normalized short -1.0f ~ 1.0f
1010 normalized int -1.0f ~ 1.0f
1011 normalized fixed 0.0f ~ 1.0f
1100
normalized
unsigned byte
0.0f ~ 1.0f
1101
normalized
unsigned short
0.0f ~ 1.0f
1110
normalized
unsigned int
0.0f ~ 1.0f
1111 Half-float (h) s/5/10 format
When floating-point or half-float data type is used, NaN or infinite
number must not be used.
0
Reserved [11:10] Reserved 0
NumComp [9:8] Number of components
00b = only one component is transferred
(a, b, c, d) = (1
st
, 0, 0, 1)
01b = two component are transferred
(a, b, c, d) = (1
st
, 2
nd
, 0, 1)
10b = three component are transferred
(a, b, c, d) = (1
st
, 2
nd
, 3
rd
, 1)
11b = four component are transferred
(a, b, c, d) = (1
st
, 2
nd
, 3
rd
, 4
th
)
00b