psp stuff STUBS

#include <stdio.h>

//0x3A622550,sceCtrlPeekBufferPositive
/*
sceCtrl
Stub Entry:
    Library name pointer:0896E964
    Import flags:0011
    Library version: 4001
    Import stubs: 0005
    Number of imports: 0003
    Pointer to NIDs:08971060
    Pointer to stubs:0896E58C

*/
/*
Memory Regions:
    Region  0: Base 0x00010000 - Size 0x00004000 - Scratchpad
    Region  1: Base 0x40010000 - Size 0x00004000 - Scratchpad (uncached)
    Region  2: Base 0x04000000 - Size 0x00200000 - VRAM
    Region  3: Base 0x44000000 - Size 0x00200000 - VRAM (uncached)
    Region  4: Base 0x08800000 - Size 0x01800000 - User memory
    Region  5: Base 0x48800000 - Size 0x01800000 - User memory (uncached)
    Region  6: Base 0x88000000 - Size 0x00400000 - Kernel memory (low)
    Region  7: Base 0xA8000000 - Size 0x00400000 - Kernel memory (low uncached)
    Region 10: Base 0x88800000 - Size 0x01800000 - Kernel memory (high)
    Region 11: Base 0xA8800000 - Size 0x01800000 - Kernel memory (high uncached)
    Region 12: Base 0xBFC00000 - Size 0x00100000 - Internal RAM
*/

void _sw(unsigned int value, unsigned int *addr)
{
    *addr = value;
}

unsigned int _lw(unsigned int *addr)
{
    return *addr;
}


#define USER_ADDRESS        (0x08800000)
#define FUNCTION_ADDRESS    (0x08804000)

//J target  Jump    pc=pc_upper|(target<<2) 000010  target
//JR rs Jump Register   pc=rs   000000  rs  000000000000000 001000

#define MIPS_J          (0x08000000)        //0b000010 0000000000000000000000000
#define MIPS_JR         (0x8)               //0b001000 0000000000000000000000000
#define MIPS_NOP        (0x00000000)

#define MIPS_REG_RA     (31)
#define MIPS_REG_T8     (24)

#define GET_INSTRUCTION(x)      (_lw(x))
#define GET_OPCODE(x)           ((GET_INSTRUCTION(x) >> 26) & 0x3F)

#define MAKE_JUMP(a, b)             _sw( MIPS_J  | ((b >> 2) & 0x3FFFFFF), a) //(address, address to jump)
#define MAKE_JUMP_REGISTER(a, reg)  _sw( ((reg<<21) & 0x3FFFFFF) | MIPS_JR, a)
#define MAKE_NOP(a)                 _sw( MIPS_NOP, a)

int main(int argc, char **argv)
{
    unsigned int lol;
    MAKE_JUMP_REGISTER(&lol, MIPS_REG_T8);
    printf("0x%X", lol);
    getchar();
    return 0;
}

//SceModule *myModule = sceKernelFindModuleByName(module_name);

unsigned int *findStubByNID(SceModule *module, PspNid NID)
{
    if(module == NULL)
    {
        printf("Error module '%s'", module->modname);
        return NULL;
    }
    unsigned int stub_size = myModule->stub_size;
    unsigned int stub_top = myModule->stub_top;
    unsigned int stub_end = stub_top + (stub_size/4); //32 bits, 4 bytes = 1 instr

    SceLibraryStubTable *stubTable;
    int i, stubTableSize;

    while(stub_top < stub_end)
    {
        stubTable = (SceLibraryStubTable *)stub_top;
        stubTableSize = stubTable->stubcount;

        for(i = 0; i < stubTableSize; i++)
        {
            if(stubTable->nidtable[i] == NID)
            {
                printf("Found NID %u at address: %u", NID, (stubTable + i*2)); //*2 since each stub is 2 instructions long (64 bits)
                return (stubTable + i*2); // &stubTable[i*2]
            }
        }

        stub_top += stubTable->len;
    }

    return NULL;
}