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authorOliver Kiehl2003-03-05 19:23:35 +0000
committerOliver Kiehl2003-03-05 19:23:35 +0000
commit5fe5a5a4afa9a800a18859509897a5095e960b38 (patch)
tree8081b1e6e09263c0b386f33610d5fd0c533f8cc6 /sky/rnc_deco.cpp
parentf3d6fcdf0480ac50b56a65c5da84d38f5b8fa660 (diff)
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cleanup
svn-id: r6694
Diffstat (limited to 'sky/rnc_deco.cpp')
-rw-r--r--sky/rnc_deco.cpp26
1 files changed, 2 insertions, 24 deletions
diff --git a/sky/rnc_deco.cpp b/sky/rnc_deco.cpp
index 975f3736da..fbfd1d3caa 100644
--- a/sky/rnc_deco.cpp
+++ b/sky/rnc_deco.cpp
@@ -138,23 +138,6 @@ uint16 input_bits(uint8 amount)
}
-// RCL/RCR functions..operate on 16 bit ints only
-uint16 rcl(uint16 reg, uint16 *cflag)
-{
- uint16 lsb = *cflag;
- *cflag = reg >> 15;
- return (reg << 1) | lsb;
-}
-
-uint16 rcr(uint16 reg, uint16 *cflag)
-{
- uint16 msb = *cflag << 15;
- *cflag = reg & 1;
- return (reg >> 1) | msb;
-}
-
-
-
void make_huftable(uint16 *table)
{
uint16 bitLength, i, j;
@@ -176,13 +159,9 @@ void make_huftable(uint16 *table)
uint16 b = huffCode >> (16 - bitLength);
uint16 a = 0;
- uint16 carry = 0;
- for (j = 0; j < bitLength; j++) {
- b = rcr(b, &carry);
- a = rcl(a, &carry);
-
- }
+ for (j = 0; j < bitLength; j++)
+ a |= ((b >> j) & 1) << (bitLength - j - 1);
*table++ = a;
*(table+0x1e) = (huffLength[i]<<8)|(i & 0x00FF);
@@ -192,7 +171,6 @@ void make_huftable(uint16 *table)
}
}
-
uint16 input_value(uint16 *table)
{
uint16 valOne, valTwo, value = bit_buffl;