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-rw-r--r--tcl/bitsbytes.tcl24
1 files changed, 12 insertions, 12 deletions
diff --git a/tcl/bitsbytes.tcl b/tcl/bitsbytes.tcl
index 52ca83d..756c725 100644
--- a/tcl/bitsbytes.tcl
+++ b/tcl/bitsbytes.tcl
@@ -2,33 +2,33 @@
# Purpose - Create some $BIT variables
# Create $K and $M variables
# and some bit field extraction variables.
-# Creat helper variables ...
+# Create helper variables ...
# BIT0.. BIT31
-for { set x 0 } { $x < 32 } { set x [expr $x + 1]} {
+for { set x 0 } { $x < 32 } { set x [expr {$x + 1}]} {
set vn [format "BIT%d" $x]
global $vn
- set $vn [expr (1 << $x)]
+ set $vn [expr {1 << $x}]
}
# Create K bytes values
# __1K ... to __2048K
-for { set x 1 } { $x < 2048 } { set x [expr $x * 2]} {
+for { set x 1 } { $x < 2048 } { set x [expr {$x * 2}]} {
set vn [format "__%dK" $x]
global $vn
- set $vn [expr (1024 * $x)]
+ set $vn [expr {1024 * $x}]
}
# Create M bytes values
# __1M ... to __2048K
-for { set x 1 } { $x < 2048 } { set x [expr $x * 2]} {
+for { set x 1 } { $x < 2048 } { set x [expr {$x * 2}]} {
set vn [format "__%dM" $x]
global $vn
- set $vn [expr (1024 * 1024 * $x)]
+ set $vn [expr {1024 * 1024 * $x}]
}
proc create_mask { MSB LSB } {
- return [expr (((1 << ($MSB - $LSB + 1))-1) << $LSB)]
+ return [expr {((1 << ($MSB - $LSB + 1))-1) << $LSB}]
}
# Cut Bits $MSB to $LSB out of this value.
@@ -36,7 +36,7 @@ proc create_mask { MSB LSB } {
# Result: 0x02340000
proc extract_bitfield { VALUE MSB LSB } {
- return [expr [create_mask $MSB $LSB] & $VALUE]
+ return [expr {[create_mask $MSB $LSB] & $VALUE}]
}
@@ -47,13 +47,13 @@ proc extract_bitfield { VALUE MSB LSB } {
# Result: 0x00000234
#
proc normalize_bitfield { VALUE MSB LSB } {
- return [expr [extract_bitfield $VALUE $MSB $LSB ] >> $LSB]
+ return [expr {[extract_bitfield $VALUE $MSB $LSB ] >> $LSB}]
}
proc show_normalize_bitfield { VALUE MSB LSB } {
set m [create_mask $MSB $LSB]
- set mr [expr $VALUE & $m]
- set sr [expr $mr >> $LSB]
+ set mr [expr {$VALUE & $m}]
+ set sr [expr {$mr >> $LSB}]
echo [format "((0x%08x & 0x%08x) -> 0x%08x) >> %2d => (0x%x) %5d " $VALUE $m $mr $LSB $sr $sr]
return $sr
}