misc. things

src/ARM.cpp

@@ -174,6 +174,9 @@ void ARM::JumpTo(u32 addr, bool restorecpsr)
     // aging cart debug crap
     //if (addr == 0x0201764C) printf("capture test %d: R1=%08X\n", R[6], R[1]);
     //if (addr == 0x020175D8) printf("capture test %d: res=%08X\n", R[6], R[0]);
+    /*if (addr==0x037FBD49) printf("zog! %08X\n", R[15]);
+    if (addr==0x037FBD4C) printf("zog2 %08X\n", R[15]);
+    if (R[15]==0x037FBD54) printf("zog jump to %08X %08X\n", addr, CodeRead32(addr));*/
 
     if (addr & 0x1)
     {

src/GPU3D.cpp

@@ -1001,6 +1001,7 @@ s32 CalculateLighting()
         // according to some hardware tests
         // * diffuse level is saturated to 255
         // * shininess level mirrors back to 0 and is ANDed with 0xFF, that before being squared
+        // TODO: check how it behaves when the computed shininess is >=0x200
 
         s32 difflevel = (-(LightDirection[i][0]*normaltrans[0] +
                          LightDirection[i][1]*normaltrans[1] +

src/NDS.cpp

@@ -837,6 +837,14 @@ void debug(u32 param)
         fwrite(&val, 4, 1, shit);
     }
     fclose(shit);*/
+    /*FILE*
+    shit = fopen("debug/pictochat7.bin", "wb");
+    for (u32 i = 0x037F0000; i < 0x03810000; i+=4)
+    {
+        u32 val = ARM7Read32(i);
+        fwrite(&val, 4, 1, shit);
+    }
+    fclose(shit);*/
 }
 
 

src/SPU.cpp

@@ -22,6 +22,12 @@
 #include "SPU.h"
 
 
+// SPU TODO
+// * loop mode 3, what does it do?
+// * the FIFO, whatever it is. GBAtek mentions it but gives no details.
+// * consider mixing every sample instead of every 16?
+
+
 namespace SPU
 {
 

src/Wifi.cpp

@@ -48,6 +48,32 @@ u16 RFData2;
 u32 RFRegs[0x40];
 
 
+// multiplayer host TX sequence:
+// 1. preamble
+// 2. IRQ7
+// 3. send data
+// 4. wait for client replies (duration: 112 + ((10 * CMD_REPLYTIME) * numclients))
+// 5. IRQ7
+// 6. send ack (16 bytes)
+// 7. IRQ12 (and optional IRQ1)
+//
+// RFSTATUS values:
+// 0 = initial
+// 1 = RX????
+// 2 = switching from RX to TX
+// 3 = TX
+// 4 = switching from TX to RX
+// 5 = MP host data sent, waiting for replies (RFPINS=0x0084)
+// 6 = RX
+// 7 = ??
+// 8 = MP host sending ack (RFPINS=0x0046)
+// 9 = idle
+
+
+// wifi TODO:
+// * work out how power saving works, there are oddities
+
+
 void Reset()
 {
     memset(RAM, 0, 0x2000);
@@ -131,6 +157,13 @@ void SetIRQ14(bool forced)
     IOPORT(W_TXReqRead) &= 0xFFF2; // todo, eventually?
 
     // TODO: actually send beacon
+    if (IOPORT(W_TXSlotBeacon) & 0x8000)
+    {
+        printf("SEND BEACON\n");
+        /*FILE* f = fopen("beacon.bin", "wb");
+        fwrite(RAM, 0x2000, 1, f);
+        fclose(f);*/
+    }
 
     if (IOPORT(W_ListenCount) == 0)
         IOPORT(W_ListenCount) = IOPORT(W_ListenInterval);
@@ -460,6 +493,21 @@ void Write(u32 addr, u16 val)
         break;
 
 
+    case W_RXCnt:
+        if (val & 0x0001)
+        {
+            IOPORT(W_RXBufWriteCursor) = IOPORT(W_RXBufWriteAddr);
+        }
+        if (val & 0x0080)
+        {
+            IOPORT(W_TXSlotReply2) = IOPORT(W_TXSlotReply1);
+            IOPORT(W_TXSlotReply1) = 0;
+        }
+        val &= 0xFF0E;
+        if (val & 0x7FFF) printf("wifi: unknown RXCNT bits set %04X\n", val);
+        break;
+
+
     case W_TXBufDataWrite:
         {
             u32 wraddr = IOPORT(W_TXBufWriteAddr) & 0x1FFE;