1#include "debugger.h"
 2
 3#include "arm.h"
 4
 5#include <stdio.h>
 6#include <stdlib.h>
 7#include <strings.h>
 8#include "linenoise.h"
 9
10enum {
11	CMD_QUIT,
12	CMD_NEXT
13};
14
15static inline void _printPSR(union PSR psr) {
16	printf("%08x [%c%c%c%c%c%c%c]\n", psr.packed,
17		psr.n ? 'N' : '-',
18		psr.z ? 'Z' : '-',
19		psr.c ? 'C' : '-',
20		psr.v ? 'V' : '-',
21		psr.i ? 'I' : '-',
22		psr.f ? 'F' : '-',
23		psr.t ? 'T' : '-');
24}
25
26static void _printStatus(struct ARMDebugger* debugger) {
27	int r;
28	for (r = 0; r < 4; ++r) {
29		printf("%08x %08x %08x %08x\n",
30			debugger->cpu->gprs[r << 2],
31			debugger->cpu->gprs[(r << 2) + 1],
32			debugger->cpu->gprs[(r << 2) + 1],
33			debugger->cpu->gprs[(r << 2) + 3]);
34	}
35	_printPSR(debugger->cpu->cpsr);
36}
37
38static int _parse(struct ARMDebugger* debugger, const char* line) {
39	if (strcasecmp(line, "q") == 0 || strcasecmp(line, "quit") == 0) {
40		return CMD_QUIT;
41	}
42	ARMRun(debugger->cpu);
43	_printStatus(debugger);
44	return CMD_NEXT;
45}
46
47void ARMDebuggerInit(struct ARMDebugger* debugger, struct ARMCore* cpu) {
48	debugger->cpu = cpu;
49}
50
51void ARMDebuggerEnter(struct ARMDebugger* debugger) {
52	char* line;
53	_printStatus(debugger);
54	while ((line = linenoise("> "))) {
55		if (_parse(debugger, line) == CMD_QUIT) {
56			break;
57		}
58		free(line);
59	}
60}