X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=ccdbg.c;h=a35481438bc4db6b8897d95429a219df4d87679e;hp=64cb768f4447f1fbb2e798005739489de590b565;hb=807e2adacb025af77bb53c03209e9c8e0d7a5f95;hpb=39801e6e9fb9388072ee414a447f74095a6ac960

diff --git a/ccdbg.c b/ccdbg.c
index 64cb768f..a3548143 100644
--- a/ccdbg.c
+++ b/ccdbg.c
@@ -18,82 +18,42 @@
 
 #include "ccdbg.h"
 
-static uint8_t
-get_bit(char *line, int i, char on, uint8_t bit)
-{
-	if (line[i] == on)
-		return bit;
-	if (line[i] == '.')
-		return 0;
-	fprintf(stderr, "bad line %s\n", line);
-	exit (1);
-}
-
-static char
-is_bit(uint8_t get, char on, uint8_t bit)
-{
-	if (get&bit)
-		return on;
-	else
-		return '.';
-}
-
-static uint8_t
-ccdbg_write_read(struct ccdbg *dbg, uint8_t set)
-{
-	uint8_t	get;
-
-	cccp_write(dbg, CC_DATA|CC_CLOCK|CC_RESET_N, set);
-	get = cccp_read_all(dbg);
-	printf("%c %c %c -> %c %c %c\n",
-	       is_bit(set, 'C', CC_CLOCK),
-	       is_bit(set, 'D', CC_DATA),
-	       is_bit(set, 'R', CC_RESET_N),
-	       is_bit(get, 'C', CC_CLOCK),
-	       is_bit(get, 'D', CC_DATA),
-	       is_bit(get, 'R', CC_RESET_N));
-	ccdbg_half_clock(dbg);
-	return get;
-}
+#define MOV_direct_data		0x75
+#define LJMP			0x02
+#define MOV_Rn_data(n)		(0x78 | (n))
+#define DJNZ_Rn_rel(n)		(0xd8 | (n))
 
-static void
-_ccdbg_debug_mode(struct ccdbg *dbg)
-{
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA|CC_RESET_N);
-	ccdbg_write_read(dbg,          CC_DATA           );
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA           );
-	ccdbg_write_read(dbg,          CC_DATA           );
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA           );
-	ccdbg_write_read(dbg,          CC_DATA|CC_RESET_N);
-}
-
-static void
-_ccdbg_reset(struct ccdbg *dbg)
-{
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA|CC_RESET_N);
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA           );
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA           );
-	ccdbg_write_read(dbg, CC_CLOCK|CC_DATA|CC_RESET_N);
-}
+#if 0
+static uint8_t instructions[] = {
+	3, MOV_direct_data, 0xfe, 0x02,
+	3, MOV_direct_data, 0x90, 0xff,
+	0
+};
+#endif
 
-static void
-ccdbg_manual(struct ccdbg *dbg, FILE *input)
-{
-	char	line[80];
-	uint8_t	set;
+static uint8_t mem_instr[] = {
+	MOV_direct_data, 0xfe, 0x02,
+	MOV_direct_data, 0x90, 0xff,
+	MOV_Rn_data(2), 0x10,
+	MOV_Rn_data(0), 0xff,
+	MOV_Rn_data(1), 0xff,
+	DJNZ_Rn_rel(1), 0xfe,
+	DJNZ_Rn_rel(0), 0xfa,
+	DJNZ_Rn_rel(2), 0xf6,
+	MOV_direct_data, 0x90, 0xfd,
+	MOV_Rn_data(2), 0x10,
+	MOV_Rn_data(0), 0xff,
+	MOV_Rn_data(1), 0xff,
+	DJNZ_Rn_rel(1), 0xfe,
+	DJNZ_Rn_rel(0), 0xfa,
+	DJNZ_Rn_rel(2), 0xf6,
+	LJMP, 0xf0, 0x03
+};
 
-	while (fgets(line, sizeof line, input)) {
-		if (line[0] == '#' || line[0] == '\n') {
-			printf ("%s", line);
-			continue;
-		}
-		set = 0;
-		set |= get_bit(line, 0, 'C', CC_CLOCK);
-		set |= get_bit(line, 2, 'D', CC_DATA);
-		set |= get_bit(line, 4, 'R', CC_RESET_N);
-		ccdbg_write_read(dbg, set);
-	}
-}
+static uint8_t jump_mem[] = {
+	3, LJMP, 0xf0, 0x00,
+	0
+};
 
 int
 main (int argc, char **argv)
@@ -101,19 +61,37 @@ main (int argc, char **argv)
 	struct ccdbg	*dbg;
 	uint8_t		status;
 	uint16_t	chip_id;
+	uint16_t	pc;
+	uint8_t		memory[0x10];
+	int		i;
 
 	dbg = ccdbg_open("/dev/ttyUSB0");
 	if (!dbg)
 		exit (1);
+#if 0
 	ccdbg_manual(dbg, stdin);
-#if 0	
+#endif
+#if 1
+	ccdbg_reset(dbg);
 	ccdbg_debug_mode(dbg);
 	status = ccdbg_read_status(dbg);
 	printf("Status: 0x%02x\n", status);
 	chip_id = ccdbg_get_chip_id(dbg);
 	printf("Chip id: 0x%04x\n", chip_id);
+	status = ccdbg_halt(dbg);
+	printf ("halt status: 0x%02x\n", status);
+/*	ccdbg_execute(dbg, instructions); */
+	ccdbg_write_memory(dbg, 0xf000, mem_instr, sizeof (mem_instr));
+	ccdbg_read_memory(dbg, 0xf000, memory, sizeof (memory));
+	for (i = 0; i < sizeof (memory); i++)
+		printf (" %02x", memory[i]);
+	printf ("\n");
+	ccdbg_execute(dbg, jump_mem);
+	pc = ccdbg_get_pc(dbg);
+	printf ("pc starts at 0x%04x\n", pc);
+	status = ccdbg_resume(dbg);
+	printf ("resume status: 0x%02x\n", status);
 #endif
-	_ccdbg_reset(dbg);
 	ccdbg_close(dbg);
 	exit (0);
 }