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Kernel: Remove i686 support

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This commit is contained in:
Liav A 2022-10-04 03:05:54 +03:00 • committed by Andreas Kling
parent 32270dcd20
commit 5ff318cf3a
75 changed files with 142 additions and 895 deletions
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20
Kernel/MiniStdLib.cpp
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@ -10,25 +10,17 @@ extern "C" {
void* memcpy(void* dest_ptr, void const* src_ptr, size_t n)
{
#if ARCH(I386) || ARCH(X86_64)
#if ARCH(X86_64)
size_t dest = (size_t)dest_ptr;
size_t src = (size_t)src_ptr;
// FIXME: Support starting at an unaligned address.
if (!(dest & 0x3) && !(src & 0x3) && n >= 12) {
size_t size_ts = n / sizeof(size_t);
# if ARCH(I386)
asm volatile(
"rep movsl\n"
: "=S"(src), "=D"(dest)
: "S"(src), "D"(dest), "c"(size_ts)
: "memory");
# else
asm volatile(
"rep movsq\n"
: "=S"(src), "=D"(dest)
: "S"(src), "D"(dest), "c"(size_ts)
: "memory");
# endif
n -= size_ts * sizeof(size_t);
if (n == 0)
return dest_ptr;
@ -59,25 +51,17 @@ void* memmove(void* dest, void const* src, size_t n)
void* memset(void* dest_ptr, int c, size_t n)
{
#if ARCH(I386) || ARCH(X86_64)
#if ARCH(X86_64)
size_t dest = (size_t)dest_ptr;
// FIXME: Support starting at an unaligned address.
if (!(dest & 0x3) && n >= 12) {
size_t size_ts = n / sizeof(size_t);
size_t expanded_c = explode_byte((u8)c);
# if ARCH(I386)
asm volatile(
"rep stosl\n"
: "=D"(dest)
: "D"(dest), "c"(size_ts), "a"(expanded_c)
: "memory");
# else
asm volatile(
"rep stosq\n"
: "=D"(dest)
: "D"(dest), "c"(size_ts), "a"(expanded_c)
: "memory");
# endif
n -= size_ts * sizeof(size_t);
if (n == 0)
return dest_ptr;