LowLevel/Luma3DS-3GX
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Optimize function

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Aurora 2016-11-09 17:01:56 +01:00
parent 4ad6b1c220
commit b830909504
1 changed files with 7 additions and 8 deletions
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15
injector/source/patcher.c
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@ -319,17 +319,16 @@ static inline u32 patchCfgGetRegion(u8 *code, u32 size, u8 regionId, u32 CFGUHan
u32 *cmp = (u32 *)cmdPos;
if((cmp[0] & 0xFFFF0FFF) == cfgSecureInfoGetRegionCmdPattern[0])
if(*cmp == cfgSecureInfoGetRegionCmdPattern[1])
{
for(u32 i = 1; i < 4; i++)
if(cmp[i] == cfgSecureInfoGetRegionCmdPattern[1] && *((u16 *)cmdPos + 5 + (2 * i)) == 0xE59F &&
*(u32 *)(cmdPos + 16 + (4 * i) + *((u16 *)cmdPos + 4 + (2 * i))) == CFGUHandleOffset)
if((*(cmp - i) & 0xFFFF0FFF) == cfgSecureInfoGetRegionCmdPattern[0] && *((u16 *)cmdPos + 5) == 0xE59F &&
*(u32 *)(cmdPos + 16 + *((u16 *)cmdPos + 4)) == CFGUHandleOffset)
{
cmp += 3 + i;
cmp[0] = 0xE3A00000 | regionId; //mov r0, =regionId
cmp[1] = 0xE5C40008; //strb r0, [r4, 8]
cmp[2] = 0xE3B00000; //movs r0, 0 (result code) ('s' not needed but nvm)
cmp[3] = 0xE5840004; //str r0, [r4, 4]
cmp[3] = 0xE3A00000 | regionId; //mov r0, =regionId
cmp[4] = 0xE5C40008; //strb r0, [r4, 8]
cmp[5] = 0xE3B00000; //movs r0, 0 (result code) ('s' not needed but nvm)
cmp[6] = 0xE5840004; //str r0, [r4, 4]
//The remaining, not patched, function code will do the rest for us
return 0;