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author | zwelch <zwelch@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2009-05-27 06:49:24 +0000 |
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committer | zwelch <zwelch@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2009-05-27 06:49:24 +0000 |
commit | dbbc9c41f7db210b0a4e226540a28e0a8a5019bf (patch) | |
tree | ce358672ddde8b15a02db12c718eb53689c490f6 /src/tcl/bitsbytes.tcl | |
parent | 140d6c8e7948710a764965075bfaa700efd09802 (diff) | |
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Move TCL script files -- Step 2 of 2:
- Move src/tcl to tcl/.
- Update top Makefile.am to use new path name.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1919 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/tcl/bitsbytes.tcl')
-rw-r--r-- | src/tcl/bitsbytes.tcl | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/src/tcl/bitsbytes.tcl b/src/tcl/bitsbytes.tcl deleted file mode 100644 index 9129ae0a..00000000 --- a/src/tcl/bitsbytes.tcl +++ /dev/null @@ -1,61 +0,0 @@ -#---------------------------------------- -# Purpose - Create some $BIT variables -# Create $K and $M variables -# and some bit field extraction variables. -# Creat helper variables ... -# BIT0.. BIT31 - -for { set x 0 } { $x < 32 } { set x [expr $x + 1]} { - set vn [format "BIT%d" $x] - global $vn - set $vn [expr (1 << $x)] -} - -# Create K bytes values -# __1K ... to __2048K -for { set x 1 } { $x < 2048 } { set x [expr $x * 2]} { - set vn [format "__%dK" $x] - global $vn - set $vn [expr (1024 * $x)] -} - -# Create M bytes values -# __1M ... to __2048K -for { set x 1 } { $x < 2048 } { set x [expr $x * 2]} { - set vn [format "__%dM" $x] - global $vn - set $vn [expr (1024 * 1024 * $x)] -} - -proc create_mask { MSB LSB } { - return [expr (((1 << ($MSB - $LSB + 1))-1) << $LSB)] -} - -# Cut Bits $MSB to $LSB out of this value. -# Example: % format "0x%08x" [extract_bitfield 0x12345678 27 16] -# Result: 0x02340000 - -proc extract_bitfield { VALUE MSB LSB } { - return [expr [create_mask $MSB $LSB] & $VALUE] -} - - -# Cut bits $MSB to $LSB out of this value -# and shift (normalize) them down to bit 0. -# -# Example: % format "0x%08x" [normalize_bitfield 0x12345678 27 16] -# Result: 0x00000234 -# -proc normalize_bitfield { VALUE MSB 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] - puts [format "((0x%08x & 0x%08x) -> 0x%08x) >> %2d => (0x%x) %5d " $VALUE $m $mr $LSB $sr $sr] - return $sr -} - - |