Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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2.4 [10] <§§2.2, 2.3> For the RISC-V assembly instructions below, what is the
corresponding C statement? Assume that the variables f, g, h, i, and j are assigned
to registers x5, x6, x7, x28,and x29, respectively. Assume that the base address
of the arrays A and B are in registers x10 and x11, respectively.
slli x30, x5, 3
add
x30,
slli x31,
add
1w
addi
lw
add
1 w
x10, x30
x6, 3
x31, x11, x31
x5, 0(x30)
x12, x30, 8
x30, 0(x12)
x30, x30, x5
x30, 0(x31)
// x30
// x30
// x31
// x31
// f =
=
=
=
=
f*8
&A[f]
g*8
&B[g]
A[f]
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Transcribed Image Text:2.4 [10] <§§2.2, 2.3> For the RISC-V assembly instructions below, what is the corresponding C statement? Assume that the variables f, g, h, i, and j are assigned to registers x5, x6, x7, x28,and x29, respectively. Assume that the base address of the arrays A and B are in registers x10 and x11, respectively. slli x30, x5, 3 add x30, slli x31, add 1w addi lw add 1 w x10, x30 x6, 3 x31, x11, x31 x5, 0(x30) x12, x30, 8 x30, 0(x12) x30, x30, x5 x30, 0(x31) // x30 // x30 // x31 // x31 // f = = = = = f*8 &A[f] g*8 &B[g] A[f]
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