X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=ccdbg.c;h=a35481438bc4db6b8897d95429a219df4d87679e;hp=a2b5946db62ec0ad8e4d7fd14a9ff0e18a492c22;hb=807e2adacb025af77bb53c03209e9c8e0d7a5f95;hpb=01cb2799875e086ee6096627c058ee235bbc33d5 diff --git a/ccdbg.c b/ccdbg.c index a2b5946d..a3548143 100644 --- a/ccdbg.c +++ b/ccdbg.c @@ -18,18 +18,80 @@ #include "ccdbg.h" +#define MOV_direct_data 0x75 +#define LJMP 0x02 +#define MOV_Rn_data(n) (0x78 | (n)) +#define DJNZ_Rn_rel(n) (0xd8 | (n)) + +#if 0 +static uint8_t instructions[] = { + 3, MOV_direct_data, 0xfe, 0x02, + 3, MOV_direct_data, 0x90, 0xff, + 0 +}; +#endif + +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 +}; + +static uint8_t jump_mem[] = { + 3, LJMP, 0xf0, 0x00, + 0 +}; + int 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); +#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_close(dbg); exit (0); }