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Hook up ppi8255 reads in Major League - prevents it from trying to flip screen when it shouldn't be

This commit is contained in:
Barry Harris 2017-02-06 12:30:55 +00:00
parent 97f8935abf
commit ad32529caa
2 changed files with 9 additions and 7 deletions
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15
src/burn/drv/sega/d_sys16a.cpp
View File

@ -2063,8 +2063,6 @@ STD_ROM_FN(Wb35d)
Memory Handlers Memory Handlers
====================================================*/ ====================================================*/
static bool Mjleague = false;
void System16APPI0WritePortA(UINT8 data) void System16APPI0WritePortA(UINT8 data)
{ {
System16SoundLatch = data & 0xff; System16SoundLatch = data & 0xff;
@ -2074,7 +2072,7 @@ void System16APPI0WritePortB(UINT8 data)
{ {
System16VideoControl = data; System16VideoControl = data;
System16VideoEnable = data & 0x10; System16VideoEnable = data & 0x10;
if (Mjleague) System16ScreenFlip = data & 0x80; System16ScreenFlip = data & 0x80;
} }
void System16APPI0WritePortC(UINT8 data) void System16APPI0WritePortC(UINT8 data)
@ -2335,6 +2333,13 @@ static void MjleagueMakeAnalogInputs()
static UINT8 __fastcall MjleagueReadByte(UINT32 a) static UINT8 __fastcall MjleagueReadByte(UINT32 a)
{ {
switch (a) { switch (a) {
case 0xc40001:
case 0xc40003:
case 0xc40005:
case 0xc40007: {
return ppi8255_r(0, (a - 0xc40000) >> 1);
}
case 0xc41001: { case 0xc41001: {
UINT8 buttons = 0x3f - System16Input[0]; UINT8 buttons = 0x3f - System16Input[0];
UINT8 analog1 = (System16VideoControl & 4) ? MjleagueTrack1Y : MjleagueTrack1X; UINT8 analog1 = (System16VideoControl & 4) ? MjleagueTrack1Y : MjleagueTrack1X;
@ -2884,8 +2889,6 @@ static INT32 MjleagueInit()
{ {
System16MakeAnalogInputsDo = MjleagueMakeAnalogInputs; System16MakeAnalogInputsDo = MjleagueMakeAnalogInputs;
Mjleague = true;
INT32 nRet = System16Init(); INT32 nRet = System16Init();
if (!nRet) { if (!nRet) {
@ -2906,8 +2909,6 @@ static INT32 MjleagueExit()
MjleagueBat1 = 0; MjleagueBat1 = 0;
MjleagueBat2 = 0; MjleagueBat2 = 0;
Mjleague = false;
return System16Exit(); return System16Exit();
} }

1
whatsnew.html
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@ -226,6 +226,7 @@
<li>Added 5 bootlegs of SDI to the Sega System 16B driver</li> <li>Added 5 bootlegs of SDI to the Sega System 16B driver</li>
<li>Implemented full controls in Ace Attacker in the Sega System 16B driver</li> <li>Implemented full controls in Ace Attacker in the Sega System 16B driver</li>
<li>Fix outrundxj</li> <li>Fix outrundxj</li>
<li>Hooked up PPI8255 reads in Major League</li>
</ul></li> </ul></li>
<li>Added a module for Resister Networks (Palette Generation) [Barry]</li> <li>Added a module for Resister Networks (Palette Generation) [Barry]</li>
<li>Update lzma sdk to 16.04 [Barry]</li> <li>Update lzma sdk to 16.04 [Barry]</li>