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Virtually full support for 4.x sysNAND

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(see also: previous commit)
This commit is contained in:
TuxSH
2017-06-16 22:37:04 +02:00
parent b71dedccfc
commit c610ec3319
3 changed files with 22 additions and 19 deletions
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26
sysmodules/rosalina/source/menus/process_patches.c
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@@ -46,25 +46,24 @@ static Result ProcessPatchesMenu_DoPatchUnpatchSM(u32 textTotalRoundedSize)
{
static bool patched = false;
static u32 *off;
static u32 origData[7];
static u32 origData;
if(patched)
{
memcpy(off, &origData, sizeof(origData));
*off = origData;
patched = false;
}
else
{
for(off = (u32 *)0x00100000; off < (u32 *)(0x00100000 + textTotalRoundedSize) - 6 &&
(off[0] != 0xE1A01006 || off[1] != 0xE1A00005 || off[3] != 0xE3500000 || off[6] != 0xE2850004);
for(off = (u32 *)0x00100000; off < (u32 *)(0x00100000 + textTotalRoundedSize) - 3 &&
(off[0] != 0xE1A01006 || (off[1] & 0xFFFF) != 5);
off++);
if(off >= (u32 *)(0x00100000 + textTotalRoundedSize) - 6)
if(off >= (u32 *)(0x00100000 + textTotalRoundedSize) - 3)
return -1;
memcpy(&origData, off, sizeof(origData));
off[2] = off[3] = off[4] = off[5] = 0xE320F000; // nop
off += 2;
*off = 0xE3A00001; // mov r0, #1
patched = true;
}
@@ -76,9 +75,10 @@ static Result ProcessPatchesMenu_DoPatchUnpatchFS(u32 textTotalRoundedSize)
{
static bool patched = false;
static u16 *off;
static const u16 origData[2] = {
0x4618, // mov r0, r3
0x3481, // adds r4, #0x81
static u16 origData[2];
static const u16 pattern[2] = {
0x7401, // strb r1, [r0, #16]
0x2000, // movs r0, #0
};
if(patched)
@@ -88,10 +88,12 @@ static Result ProcessPatchesMenu_DoPatchUnpatchFS(u32 textTotalRoundedSize)
}
else
{
off = (u16 *)memsearch((u8 *)0x00100000, &origData, textTotalRoundedSize, sizeof(origData));
off = (u16 *)memsearch((u8 *)0x00100000, &pattern, textTotalRoundedSize, sizeof(pattern));
if(off == NULL)
return -1;
off += 4;
memcpy(origData, off, 4);
off[0] = 0x2001; // mov r0, #1
off[1] = 0x4770; // bx lr