现在这个算法已经有点眉目了，我这是JPEG->BMP转换的代码，现在转换后的BMP已经能能出来大致的轮廓了，但是各种颜色有点混乱，请各位大虾再加把劲帮我把这个弄出来，谢谢！
singed short get_svalue(unsigned char k)
// k>0 always
// Takes k bits out of the BIT stream (wordval), and makes them a signed value
{
_asm {
xor ecx, ecx
mov cl,k
mov eax,[wordval]//wordval为unsigned int类型
shl eax,cl
shr eax, 16
dec cl
bt eax,ecx
jc end_macro
signed_value:inc cl
mov ebx,[start_neg_pow2]//start_neg_pow2为signed short*指针
add ax,word ptr [ebx+ecx*2]
end_macro:
}
}
unsigned short WORD_hi_lo(unsigned char byte_high,unsigned char byte_low)
{
_asm {
mov ah,byte_high
mov al,byte_low
}
}
unsigned short lookKbits(unsigned char k)
{
_asm {
mov dl, k
mov cl, 16
sub cl, dl
mov eax, [wordval]//wordval为unsigned int类型
shr eax, cl
}
}
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