void debugpageptr(UINT32 addr) {
FILEH fh;
char buf[256];
UINT32 pde;
UINT32 pte;
UINT i;
UINT32 a;
fh = file_create("page.txt");
SPRINTF(buf, "CR3=%.8x\r\n", CPU_CR3);
file_write(fh, buf, strlen(buf));
for (i=0; i<1024; i++) {
a = CPU_STAT_PDE_BASE + (i * 4);
pde = cpu_memoryread_d(a);
SPRINTF(buf, "%.8x=>%.8x [%.8x]\r\n", (i << 22), pde, a);
file_write(fh, buf, strlen(buf));
}
addr >>= 22;
pde = cpu_memoryread_d(CPU_STAT_PDE_BASE + (addr * 4));
for (i=0; i<1024; i++) {
a = (pde & CPU_PDE_BASEADDR_MASK) + (i * 4);
pte = cpu_memoryread_d(a);
SPRINTF(buf, "%.8x=>%.8x [%.8x]\r\n", (addr << 22) + (i << 12), pte, a);
file_write(fh, buf, strlen(buf));
}
file_close(fh);
}
/*
* additional physical address memory access functions
*/
UINT64 MEMCALL
cpu_memoryread_q(UINT32 paddr)
{
UINT64 value;
value = cpu_memoryread_d(paddr);
value += (UINT64)cpu_memoryread_d(paddr + 4) << 32;
return value;
}
UINT32 MEMCALL
cpu_codefetch_d(UINT32 offset)
{
const int ucrw = CPU_PAGE_READ_CODE | CPU_STAT_USER_MODE;
descriptor_t *sdp;
UINT32 addr;
sdp = &CPU_CS_DESC;
addr = sdp->u.seg.segbase + offset;
if (!CPU_STAT_PM)
return cpu_memoryread_d(addr);
if (offset <= sdp->u.seg.limit - 3)
return cpu_lmemoryread_d(addr, ucrw);
EXCEPTION(GP_EXCEPTION, 0);
return 0; /* compiler happy */
}
