ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Adobe Graphics Assembly Language (AGAL)
Name Opcode Operation Description
m34 0x19 multiply matrix 3x4 destination.x = (source1.x * source2[0].x) + (source1.y * source2[0].y)
+ (source1.z * source2[0].z) + (source1.w * source2[0].w)
kil 0x27 kill/discard
(fragment shader
only)
tex 0x28 texture sample
(fragment shader
only)
Destination field format
The [destination] field is 32 bits in size:
31.............................0
----TTTT----MMMMNNNNNNNNNNNNNNNN
T = Register type (4 bits)
M = Write mask (4 bits)
N = Register number (16 bits)
- = undefined, must be 0
Source field format
The [source] field is 64 bits in size:
63.............................................................0
D-------------QQ----IIII----TTTTSSSSSSSSOOOOOOOONNNNNNNNNNNNNNNN
D = Direct=0/Indirect=1 for direct Q and I are ignored, 1bit
Q = Index register component select (2 bits)
I = Index register type (4 bits)
T = Register type (4 bits)
S = Swizzle (8 bits, 2 bits per component)
O = Indirect offset (8 bits)
N = Register number (16 bits)
- = undefined, must be 0
destination.y = (source1.x * source2[1].x) + (source1.y * source2[1].y)
+ (source1.z * source2[1].z) + (source1.w * source2[1].w)
destination.z = (source1.x * source2[2].x) + (source1.y * source2[2].y)
+ (source1.z * source2[2].z) + (source1.w * source2[2].w)
(produces only a 3 component result, destination must be masked to
.xyz or less)
If single scalar source component is less than zero, fragment is
discarded and not drawn to the frame buffer. (Destination register
must be set to all 0)
destination equals load from texture source2 at coordinates source1.
In this case, source2 must be in sampler format.
sge 0x29 set-if-greater-equal destination = source1 >= source2 ? 1 : 0, component-wise
slt 0x2a set-if-less-than destination = source1 < source2 ? 1 : 0, component-wise
seq 0x2c set-if-equal destination = source1 == source2 ? 1 : 0, component-wise
sne 0x2d set-if-not-equal destination = source1 != source2 ? 1 : 0, component-wise
Last updated 6/6/2012
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