all repos — mgba @ 92e4c859a715221981ffd270a1b7ffaeabe4a639

mGBA Game Boy Advance Emulator

DS Wi-Fi: Add a few more registers
Vicki Pfau vi@endrift.com
Fri, 17 Mar 2017 11:10:19 -0700
commit

92e4c859a715221981ffd270a1b7ffaeabe4a639

parent

cb1b04f1b6839026dc8c24417cce4c2740c02d26

1 files changed, 13 insertions(+), 0 deletions(-)

jump to
M src/ds/wifi.c → src/ds/wifi.c 
@@ -12,7 +12,13 @@ mLOG_DEFINE_CATEGORY(DS_WIFI, "DS Wi-Fi", "ds.wifi");
 
 void DSWifiReset(struct DS* ds) {
 	memset(ds->wifi.io, 0, sizeof(ds->wifi.io));
+	ds->wifi.io[0x044 >> 1] = 1;
 	memset(ds->wifi.wram, 0, sizeof(ds->wifi.wram));
+}
+
+static void _rotateRandom(struct DS* ds) {
+	int16_t random = ds->wifi.io[0x044 >> 1];
+	ds->wifi.io[0x044 >> 1] = (random & 1) ^ ((random >> 10) | ((random << 1) & 0x7FE));
 }
 
 static void DSWifiWriteBB(struct DS* ds, uint8_t address, uint8_t value) {

@@ -60,9 +66,16 @@ }
 
 static uint16_t DSWifiReadReg(struct DS* ds, uint32_t address) {
 	switch (address) {
+	case 0x044:
+		_rotateRandom(ds);
+		break;
 	case 0x040:
 	case 0x15C:
 		break;
+	case 0x254:
+		return 0xFFFF;
+	case 0x290:
+		return 0xFFFF;
 	default:
 		mLOG(DS_WIFI, STUB, "Stub Wi-Fi I/O register read: %06X", address);
 		break;