ATI R700 Technology
9-110 ALU Instructions
Copyright © 2009 Advanced Micro Devices, Inc. All rights reserved.
Floating-Point Multiply-Add, Multiply by 4
Instructions
MULADD_M4
Description Floating-point multiply-add (MAD), followed by multiply by 4.
dst = (src0 * src1 + src2) * 4;
Microcode
Format ALU_DWORD0 (page 10-16) and ALU_DWORD1_OP3 (page 10-23).
Instruction Field ALU_INST == OP3_INST_MULADD_M4, opcode 18 (0x12).
C DE
D
R
DST_GPR BS
ALU_INST
(11000)
S
2
N
S2E
S
2
R
SRC2_SEL
+4
L PS IM
S
1
N
S1E
S
1
R
SRC1_SEL
S
0
N
S0E
S
0
R
SRC0_SEL
+0
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