deleted

Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@765 cc03376c-175c-47c8-b038-4cd826a8556b
2010-03-11 11:31:51 +00:00
parent 4f388d5c10
commit e6f39ee6b5
49 changed files with 0 additions and 15453 deletions
@@ -1,247 +0,0 @@
-#include "libsys_boot.h"
-
-typedef struct _ssrec_t
-{
-	UINT32 addr;
-	UINT32 size;
-	UINT32 type;
-	UINT8 *data;
-
-} srec_t;
-
-enum srec_type
-{
-	srec_err, srec_sob, srec_data, srec_rec, srec_eob
-};
-
-UINT8 h2i(UINT8 *c)
-{
-	int i;
-	UINT8 t, b = 0;
-
-	for (i=0; i < 2; i++)
-	{
-		t = c[i];
-		if (t >= 'A')
-			t = t - 'A' + 10;
-		else
-			t -= '0';
-
-		b = (b << 4) | t;
-	}
-	return b;
-}
-
-int decode_srec(srec_t *pRec, UINT8 *pBuf, int buflen)
-{
-	UINT8 chksum, byte;
-	int alen, i;
-
-	if (!buflen)
-		return srec_err;
-
-	pRec->type = srec_rec;
-	alen = 0;
-	if ((pBuf[1] > '0') && (pBuf[1] < '4'))
-	{
-	  alen = pBuf[1] - '0' + 1;
-	  pRec->type = srec_data;
-	}
-	else if ((pBuf[1] >= '7') && (pBuf[1] <= '9'))
-	{
-	  alen = 11 - (pBuf[1] - '0');
-	  pRec->type = srec_eob;
-	}
-	else if (pBuf[1] == '0')
-	{
-	  alen = 2;
-	  pRec->type = srec_sob;
-	}
-
-	byte = h2i(&pBuf[2]);
-	pRec->size = byte;
-	chksum = byte;
-
-	pRec->addr = 0;
-	for (i=0; i < alen; i++)
-	{
-		byte = h2i(&pBuf[4+2*i]);
-        pRec->addr = pRec->addr << 8 | byte;
-		chksum += byte;
-	}
-	pRec->size -= (alen+1);
-
-	pRec->data = (UINT8*) &pBuf[4 + 2*alen];
-	for (i=0; i < (int)pRec->size; i++)
-	{
-		byte = h2i(&pRec->data[2*i]);
-		pRec->data[i] = byte;
-		chksum += byte;
-	}
-	chksum = ~chksum;
-	byte = h2i(&pRec->data[2*i]);
-	if (chksum != byte)
-		return 0;
-
-	return pRec->type;
-}
-
-int srec_getline(UINT8 *pLine)
-{
-	char c;
-	int i = 0;
-
-	do
-	{
-		c = readchar();
-
-	} while ((c != 's') && (c != 'S'));
-
-	while(((c != 0x0D) && (c != 0x0A)))
-	{
-		pLine[i++] = c;
-		c = readchar();
-	};
-
-	return i;
-}
-
-void Jump_to(void *pEntry)
-{
-	__asm
-	(
-		".set	noreorder\n"
-	);
-	__asm
-	(
-		"jr		%[pEntry]\n"				// jump entry
-		:
-		: [pEntry] "r" (pEntry)
-	);
-	__asm
-	(
-		"nop\n"
-	);
-	__asm
-	(
-		".set	reorder\n"
-	);
-}
-
-void Exec_at(void *pEntry)
-{
-	__asm
-	(
-		".set	noreorder\n"
-	);
-
-	__asm
-	(
-		"mfc0	$26, $12\n"			// change exception vector
-		"li		$27, 0xFFBFFFFF\n"
-		"and	$26, $27\n"
-		"mtc0	$26, $12\n"
-	);
-
-	__asm
-	(
-		"lw		$v0, 16($sp)\n"
-		"nop\n"
-		"jr		$v0\n"				// jump entry
-		"rfe\n"
-	);
-
-	__asm
-	(
-		".set	reorder\n"
-	);
-}
-void PrintCPUinfo(void)
-{
-	int result, rev_id;
-
-	char *cpu_type_str[7] = {"invalid", "R2000", "R3000", "R6000", "R4000", "reserved", "R6000A"};
-
-	// Print Status register
-	result = CP0_SR_read();
-
-	sputs("Status  : ");
-	print_word(result);
-	sputs("\n");
-
-	// Print Revision
-	result = CP0_PRID_read();
-	rev_id = (result >> 8) & 0xFF;
-	sputs("CPU type: ");
-	if ((rev_id > 0) && (rev_id < 0x07))
-	{
-		sputs(cpu_type_str[rev_id]);
-		sputs(" Rev.");
-		rev_id = result & 0xFF;
-		print_byte((char)rev_id);
-	}
-	else
-		sputs("Unknown");
-
-	sputs("\n");
-
-}
-
-#define	MAX_IMG_SIZE		(1024*1024)	// bytes
-
-int main(int argc, char *argv[])
-{
-	UINT8 buf[256];
-	srec_t srec;
-	int result, srec_state, i;
-	UINT32 haddr;
-	volatile UINT8 *pMem;
-	haddr = 0;
-
-	// ----------------------------------------------------------
-	sputs("\n\n");
-	PrintCPUinfo();
-	sputs("Booting from UART..");
-
-	while(1)
-	{
-		sputs(".");
-		while(1)
-		{
-			result = srec_getline(buf);
-			srec_state = decode_srec(&srec, buf, result);
-			switch (srec_state)
-			{
-				case srec_data:
-					if ((srec.addr + srec.size) > haddr)
-						haddr = srec.addr + srec.size;
-
-					pMem = (UINT8*)srec.addr;
-					for (i=0; i < srec.size; i++)
-						*pMem++ = srec.data[i];
-
-					break;
-
-				case srec_eob:
-					sputs("done\n\n");
-					sputs("Execute program at ");
-					print_word(srec.addr);
-					sputs("\n\n");
-
-					Exec_at((void*)srec.addr);
-					break;
-
-				default:
-					result = -1;
-					break;
-			}
-			if (result < 0)
-			{
-				break;
-			}
-
-		};
-	}
-	return 0;
-}
-