diff options
| -rw-r--r-- | gdb_remote.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gdb_remote.c b/gdb_remote.c index 42f833a..88d2274 100644 --- a/gdb_remote.c +++ b/gdb_remote.c @@ -103,6 +103,16 @@ uint32_t calc_status(m68k_context * context) return status; } +void update_status(m68k_context * context, uint16_t value) +{ + context->status = value >> 8; + for (int i = 4; i >= 0; i--) + { + context->flags[i] = value & 1; + value >>= 1; + } +} + uint8_t read_byte(m68k_context * context, uint32_t address) { uint16_t * word; @@ -277,6 +287,25 @@ void gdb_run_command(m68k_context * context, uint32_t pc, char * command) gdb_send_command(send_buf); break; } + case 'P': { + char *after = NULL; + unsigned long reg = strtoul(command+1, &after, 16); + uint32_t value = strtoul(after+1, NULL, 16); + + if (reg < 8) { + context->dregs[reg] = value; + } else if (reg < 16) { + context->aregs[reg-8] = value; + } else if (reg == 16) { + update_status(context, value); + } else { + //supporting updates to PC is going to be a pain + gdb_send_command("E01"); + break; + } + gdb_send_command("OK"); + break; + } case 'q': if (!memcmp("Supported", command+1, strlen("Supported"))) { sprintf(send_buf, "PacketSize=%X", (int)bufsize); |