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Optimize Bt temporary replacement.

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This commit is contained in:
TomAwezome 2022-10-20 02:54:27 -04:00
parent 88e7430bc3
commit adb8c4dd33
1 changed files with 3 additions and 3 deletions
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6
src/Kernel/KernelB.HH Executable file → Normal file
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@ -19,11 +19,11 @@ public _intern IC_BTC Bool Btc( U8 *bit_field, I64 bit); //Bit test and co
// caused strange crashes on a Ryzen with Gigabyte brand motherboard, all PCI devices AMD brand. // caused strange crashes on a Ryzen with Gigabyte brand motherboard, all PCI devices AMD brand.
// Bit test compiler implementation needs to be researched to fix those bugs.) // Bit test compiler implementation needs to be researched to fix those bugs.)
Bool Bt(U8 reg RBX *bit_field, I64 reg RCX bit) Bool Bt(U8 reg RBX *bit_field, I64 reg RDX bit)
{ {
bit_field += bit / 8; bit_field += bit / 8;
U64 reg RDX bit_mod = (bit & 7); bit &= 7;
return (*bit_field & (1 << bit_mod)) >> bit_mod; return (*bit_field & (1 << bit)) >> bit;
} }
Bool Btr(U8 reg RDX *bit_field, I64 reg RBX bit) Bool Btr(U8 reg RDX *bit_field, I64 reg RBX bit)