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Zeroes is a verb :-/

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John Winans 2018-05-04 20:23:29 -05:00
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2 changed files with 5 additions and 5 deletions
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4
book/numbers/chapter.tex
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@ -88,7 +88,7 @@ magnitude of the desired number.
Another item worth noting is that any even binary number will always Another item worth noting is that any even binary number will always
have a 0 LSB and odd numbers will always have a 1 LSB. have a 0 LSB and odd numbers will always have a 1 LSB.
As is customary in decimal, leading zeroes are sometimes not shown As is customary in decimal, leading zeros are sometimes not shown
for readability. for readability.
The relationship between binary and hex values is also worth taking The relationship between binary and hex values is also worth taking
@ -149,7 +149,7 @@ $00011011_2$ represents the decimal value $27_{10}$.
Conversion from binary to hex involves grouping the bits into Conversion from binary to hex involves grouping the bits into
sets of four and then performing the same summing process as sets of four and then performing the same summing process as
shown above. If there is not a multiple of four bits then shown above. If there is not a multiple of four bits then
extend the binary to the left with zeroes to make it so. extend the binary to the left with zeros to make it so.
Grouping the bits into sets of four and summing: Grouping the bits into sets of four and summing:

6
book/rv32/chapter.tex
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@ -96,7 +96,7 @@ Zero extend {\em val} to the right.
Some times a binary value is encoded such that a set of bits represented Some times a binary value is encoded such that a set of bits represented
by {\em val} are used to represent the \acrshort{msb}s of some longer (more bits) by {\em val} are used to represent the \acrshort{msb}s of some longer (more bits)
value. value.
In this case it is necessary to append zeroes to the right to convert \verb@val@ to In this case it is necessary to append zeros to the right to convert \verb@val@ to
the longer value. the longer value.
\autoref{Figure:ZeroRightExtend} illustrates converting a 20--bit {\em val} to \autoref{Figure:ZeroRightExtend} illustrates converting a 20--bit {\em val} to
@ -570,7 +570,7 @@ Load Upper Immediate.
\verb@rd@ $\leftarrow$ \verb@zr(imm)@ \verb@rd@ $\leftarrow$ \verb@zr(imm)@
Copy the immediate value into bits 31:12 of the destination register and Copy the immediate value into bits 31:12 of the destination register and
place zeroes into bits 11:0. place zeros into bits 11:0.
When XLEN is 64 or 128, the immediate value is sign--extended to the left. When XLEN is 64 or 128, the immediate value is sign--extended to the left.
Instruction Format and Example: Instruction Format and Example:
@ -992,7 +992,7 @@ Store Word
\verb@m16(rs1+sx(imm))@ $\leftarrow$ \verb@rs2[31:0]@\\ \verb@m16(rs1+sx(imm))@ $\leftarrow$ \verb@rs2[31:0]@\\
\verb@pc@ $\leftarrow$ \verb@pc+4@ \verb@pc@ $\leftarrow$ \verb@pc+4@
Store the 32-bit value in \verb@rs1@ into memory at address \verb@rs2+imm@. Store the 32-bit value in \verb@rs1@ into memory at address \verb@rs1+imm@.
Encoding: Encoding: