LowLevel/Luma3DS-3GX
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Small cleanup

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This commit is contained in:
Aurora 2016-09-02 22:56:57 +02:00
parent eba56d0f64
commit fc3a69d9ca
3 changed files with 11 additions and 17 deletions
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8
patches/twl_k11modules.s
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@ -35,7 +35,7 @@ patch:
add r1, sp, #(0xb0 - 0xac)
push {r0-r11, lr}
ldr r9, [r3] ; load the address of the code section
ldr r8, [r4] ; load the address of the exheader
@ -70,7 +70,7 @@ patch:
ldr r0, [r5]
add r0, r4
blx memcpy
skipPatch:
ldrh r0, [r5, #6]
@ -100,7 +100,7 @@ memcmp:
sub r6, r7
cmp r6, #0
beq cmp_loop
cmp_loop_end:
mov r0, r6
pop {r4-r7, pc}
@ -126,7 +126,7 @@ memcpy:
patchesStart:
; SCFG_EXT bit31 patches, based on https://github.com/ahezard/twl_firm_patcher (credits where they're due)
.word 0x07368 ; offset
.halfword 1 ; type (0: relative to the start of TwlBg's code; 1: relative to the start of the dev SRL launcher)
.halfword 4 ; size (must be a multiple of 4)

8
source/emunand.c
View File

@ -95,16 +95,14 @@ static inline void patchNandRw(u8 *pos, u32 size, u32 branchOffset)
static inline void patchMpu(u8 *pos, u32 size)
{
const u32 mpuPatch[3] = {0x00360003, 0x00200603, 0x001C0603};
//Look for MPU pattern
const u8 pattern[] = {0x03, 0x00, 0x24, 0x00};
u32 *off = (u32 *)memsearch(pos, pattern, size, 4);
off[0] = mpuPatch[0];
off[6] = mpuPatch[1];
off[9] = mpuPatch[2];
off[0] = 0x00360003;
off[6] = 0x00200603;
off[9] = 0x001C0603;
}
void patchEmuNand(u8 *arm9Section, u32 arm9SectionSize, u8 *process9Offset, u32 process9Size, u32 emuHeader, u32 branchAdditive)

12
source/patches.c
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@ -90,29 +90,25 @@ void patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr)
void patchFirmWrites(u8 *pos, u32 size)
{
const u16 writeBlock[2] = {0x2000, 0x46C0};
//Look for FIRM writing code
u8 *const off1 = memsearch(pos, "exe:", size, 4);
const u8 pattern[] = {0x00, 0x28, 0x01, 0xDA};
u16 *off2 = (u16 *)memsearch(off1 - 0x100, pattern, 0x100, 4);
off2[0] = writeBlock[0];
off2[1] = writeBlock[1];
off2[0] = 0x2000;
off2[1] = 0x46C0;
}
void patchOldFirmWrites(u8 *pos, u32 size)
{
const u16 writeBlockOld[2] = {0x2400, 0xE01D};
//Look for FIRM writing code
const u8 pattern[] = {0x04, 0x1E, 0x1D, 0xDB};
u16 *off = (u16 *)memsearch(pos, pattern, size, 4);
off[0] = writeBlockOld[0];
off[1] = writeBlockOld[1];
off[0] = 0x2400;
off[1] = 0xE01D;
}
void reimplementSvcBackdoor(u8 *pos, u32 *arm11SvcTable, u8 **freeK11Space)