#include <acess.h>
#include <arch.h>
+#define DEBUG_TO_E9 1
+#define DEBUG_TO_SERIAL 1
+#define SERIAL_PORT 0x3F8
+#define GDB_SERIAL_PORT 0x2F8
+
+
// === IMPORTS ===
extern int GetCPUNum(void);
+extern void *Proc_GetCurThread(void);
+
+// === GLOBALS ===
+ int gbDebug_SerialSetup = 0;
+ int gbGDB_SerialSetup = 0;
+
+// === PROTOTYPEs ===
+ int putDebugChar(char ch);
// === CODE ===
/**
#if LOCK_DISABLE_INTS
// Save interrupt state and clear interrupts
- __ASM__ ("pushf;\n\tpop %0\n\tcli" : "=a"(IF));
+ __ASM__ ("pushf;\n\tpop %0" : "=r"(IF));
IF &= 0x200; // AND out all but the interrupt flag
#endif
: "a"(0), "r"(cpu), "r"(&Lock->Lock)
);
#elif STACKED_LOCKS == 2
- __ASM__("lock cmpxchgl %2, (%3)"
+ __ASM__("lock cmpxchgq %2, (%3)"
: "=a"(v)
: "a"(0), "r"(thread), "r"(&Lock->Lock)
);
#else
__ASM__("xchgl %0, (%2)":"=a"(v):"a"(1),"D"(&Lock->Lock));
#endif
+
+ #if LOCK_DISABLE_INTS
+ if( v ) __ASM__("sti"); // Re-enable interrupts
+ #endif
}
#if LOCK_DISABLE_INTS
+ __ASM__("cli");
Lock->IF = IF;
#endif
}
#endif
}
+// === DEBUG IO ===
+#if USE_GDB_STUB
+int putDebugChar(char ch)
+{
+ if(!gbGDB_SerialSetup) {
+ outb(GDB_SERIAL_PORT + 1, 0x00); // Disable all interrupts
+ outb(GDB_SERIAL_PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+ outb(GDB_SERIAL_PORT + 0, 0x0C); // Set divisor to 12 (lo byte) 9600 baud
+ outb(GDB_SERIAL_PORT + 1, 0x00); // (base is (hi byte)
+ outb(GDB_SERIAL_PORT + 3, 0x03); // 8 bits, no parity, one stop bit (8N1)
+ outb(GDB_SERIAL_PORT + 2, 0xC7); // Enable FIFO with 14-byte threshold and clear it
+ outb(GDB_SERIAL_PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+ gbDebug_SerialSetup = 1;
+ }
+ while( (inb(GDB_SERIAL_PORT + 5) & 0x20) == 0 );
+ outb(GDB_SERIAL_PORT, ch);
+ return 0;
+}
+int getDebugChar(void)
+{
+ if(!gbGDB_SerialSetup) {
+ outb(GDB_SERIAL_PORT + 1, 0x00); // Disable all interrupts
+ outb(GDB_SERIAL_PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+ outb(GDB_SERIAL_PORT + 0, 0x0C); // Set divisor to 12 (lo byte) 9600 baud
+ outb(GDB_SERIAL_PORT + 1, 0x00); // (hi byte)
+ outb(GDB_SERIAL_PORT + 3, 0x03); // 8 bits, no parity, one stop bit
+ outb(GDB_SERIAL_PORT + 2, 0xC7); // Enable FIFO with 14-byte threshold and clear it
+ outb(GDB_SERIAL_PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+ gbDebug_SerialSetup = 1;
+ }
+ while( (inb(GDB_SERIAL_PORT + 5) & 1) == 0) ;
+ return inb(GDB_SERIAL_PORT);
+}
+#endif
+
+void Debug_PutCharDebug(char ch)
+{
+ #if DEBUG_TO_E9
+ __asm__ __volatile__ ( "outb %%al, $0xe9" :: "a"(((Uint8)ch)) );
+ #endif
+
+ #if DEBUG_TO_SERIAL
+ if(!gbDebug_SerialSetup) {
+ outb(SERIAL_PORT + 1, 0x00); // Disable all interrupts
+ outb(SERIAL_PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+ outb(SERIAL_PORT + 0, 0x0C); // Set divisor to 12 (lo byte) 9600 baud
+ outb(SERIAL_PORT + 1, 0x00); // (hi byte)
+ outb(SERIAL_PORT + 3, 0x03); // 8 bits, no parity, one stop bit
+ outb(SERIAL_PORT + 2, 0xC7); // Enable FIFO with 14-byte threshold and clear it
+ outb(SERIAL_PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+ gbDebug_SerialSetup = 1;
+ }
+ while( (inb(SERIAL_PORT + 5) & 0x20) == 0 );
+ outb(SERIAL_PORT, ch);
+ #endif
+}
+
+void Debug_PutStringDebug(const char *String)
+{
+ while(*String)
+ Debug_PutCharDebug(*String++);
+}
+
+// === PORT IO ===
void outb(Uint16 Port, Uint8 Data)
{
__asm__ __volatile__ ("outb %%al, %%dx"::"d"(Port),"a"(Data));
}
// === Endianness ===
+/*
Uint32 BigEndian32(Uint32 Value)
{
Uint32 ret;
{
return (Value>>8)|(Value<<8);
}
+*/
// === Memory Manipulation ===
int memcmp(const void *__dest, const void *__src, size_t __count)
void *memcpy(void *__dest, const void *__src, size_t __count)
{
- if( ((tVAddr)__dest & 7) != ((tVAddr)__src & 7) )
- __asm__ __volatile__ ("rep movsb" : : "D"(__dest),"S"(__src),"c"(__count));
- else {
- const Uint8 *src = __src;
- Uint8 *dst = __dest;
- while( (tVAddr)src & 7 && __count ) {
- *dst++ = *src++;
+ tVAddr dst = (tVAddr)__dest, src = (tVAddr)__src;
+ if( (dst & 7) != (src & 7) )
+ {
+ __asm__ __volatile__ ("rep movsb" : : "D"(dst),"S"(src),"c"(__count));
+ }
+ else
+ {
+ while( (src & 7) && __count ) {
+ *(char*)dst++ = *(char*)src++;
__count --;
}
- __asm__ __volatile__ ("rep movsq" : : "D"(dst),"S"(src),"c"(__count/8));
- src += __count & ~7;
- dst += __count & ~7;
+ __asm__ __volatile__ ("rep movsq" : "=D"(dst),"=S"(src) : "0"(dst),"1"(src),"c"(__count/8));
__count = __count & 7;
while( __count-- )
- *dst++ = *src++;
+ *(char*)dst++ = *(char*)src++;
}
return __dest;
}
return __dest;
}
+Uint64 DivMod64U(Uint64 Num, Uint64 Den, Uint64 *Rem)
+{
+ Uint64 ret, rem;
+ __asm__ __volatile__(
+ "div %4"
+ : "=a" (ret), "=d" (rem)
+ : "a" ( Num ), "d" (0), "r" (Den)
+ );
+ if(Rem) *Rem = rem;
+ return ret;
+}
+