libretro/FBNeo
1
0
Fork 0
mirror of https://github.com/libretro/FBNeo.git synced 2024-12-03 15:20:54 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

d_route16: restore old/working protection

Browse Source
This commit is contained in:
dinkc64 2019-05-03 19:14:15 -04:00
parent 63778f0d55
commit 50eec68b07
1 changed files with 75 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
src/burn/drv/pre90s/d_route16.cpp
View File

@ -1,6 +1,8 @@
// FB Alpha Route 16 driver module
// Based on MAME driver by Zsolt Vasvari
// Todo: revise route16 protection
#include "tiles_generic.h"
#include "z80_intf.h"
#include "ay8910.h"
@ -329,10 +331,12 @@ static UINT8 speakres_in3_read()
static UINT8 route16_protection_read()
{
// neither of these work -dink
#if 0
// this is enough to bypass the protection
protection_data++;
return (1 << ((protection_data >> 1) & 7));
#if 0
#endif
// This gives exact values we're looking for
INT32 pc = ZetGetPC(-1);
@ -345,7 +349,6 @@ static UINT8 route16_protection_read()
}
return protection_data;
#endif
}
static UINT8 __fastcall route16_main_read(UINT16 address)
@ -828,13 +831,38 @@ static struct BurnRomInfo route16RomDesc[] = {
STD_ROM_PICK(route16)
STD_ROM_FN(route16)
static INT32 route16Init()
{
INT32 nRet = DrvInit();
if (nRet == 0)
{
// Patch protection
DrvZ80ROM0[0x00e9] = 0x3a;
DrvZ80ROM0[0x0105] = 0x00; // jp nz,$4109 (nirvana) - NOP's in route16c
DrvZ80ROM0[0x0106] = 0x00;
DrvZ80ROM0[0x0107] = 0x00;
DrvZ80ROM0[0x072a] = 0x00; // jp nz,$4238 (nirvana)
DrvZ80ROM0[0x072b] = 0x00;
DrvZ80ROM0[0x072c] = 0x00;
DrvZ80ROM0[0x0754] = 0xc3;
DrvZ80ROM0[0x0755] = 0x63;
DrvZ80ROM0[0x0756] = 0x07;
}
return nRet;
}
struct BurnDriver BurnDrvroute16 = {
"route16", NULL, NULL, NULL, "1981",
"Route 16 (set 1)\0", NULL, "Tehkan/Sun (Centuri license)", "Route 16",
NULL, NULL, NULL, NULL,
BDF_GAME_WORKING | BDF_ORIENTATION_VERTICAL, 2, HARDWARE_MISC_PRE90S, GBF_MAZE, 0,
NULL, route16RomInfo, route16RomName, NULL, NULL, NULL, NULL, Route16InputInfo, Route16DIPInfo,
DrvInit, DrvExit, DrvFrame, Route16Draw, DrvScan, &DrvRecalc, 0x8,
route16Init, DrvExit, DrvFrame, Route16Draw, DrvScan, &DrvRecalc, 0x8,
256, 256, 3, 4
};
@ -861,13 +889,38 @@ static struct BurnRomInfo route16aRomDesc[] = {
STD_ROM_PICK(route16a)
STD_ROM_FN(route16a)
static INT32 route16aInit()
{
INT32 nRet = DrvInit();
if (nRet == 0)
{
// Patch protection
DrvZ80ROM0[0x00e9] = 0x3a;
DrvZ80ROM0[0x0105] = 0x00; // jp nz,$4109 (nirvana) - NOP's in route16c
DrvZ80ROM0[0x0106] = 0x00;
DrvZ80ROM0[0x0107] = 0x00;
DrvZ80ROM0[0x0731] = 0x00; // jp nz,$4238 (nirvana)
DrvZ80ROM0[0x0732] = 0x00;
DrvZ80ROM0[0x0733] = 0x00;
DrvZ80ROM0[0x0747] = 0xc3;
DrvZ80ROM0[0x0748] = 0x56;
DrvZ80ROM0[0x0749] = 0x07;
}
return nRet;
}
struct BurnDriver BurnDrvroute16a = {
"route16a", "route16", NULL, NULL, "1981",
"Route 16 (set 2)\0", NULL, "Tehkan/Sun (Centuri license)", "Route 16",
NULL, NULL, NULL, NULL,
BDF_GAME_WORKING | BDF_CLONE | BDF_ORIENTATION_VERTICAL, 2, HARDWARE_MISC_PRE90S, GBF_MAZE, 0,
NULL, route16aRomInfo, route16aRomName, NULL, NULL, NULL, NULL, Route16InputInfo, Route16DIPInfo,
DrvInit, DrvExit, DrvFrame, Route16Draw, DrvScan, &DrvRecalc, 0x8,
route16aInit, DrvExit, DrvFrame, Route16Draw, DrvScan, &DrvRecalc, 0x8,
256, 256, 3, 4
};
@ -894,13 +947,30 @@ static struct BurnRomInfo route16cRomDesc[] = {
STD_ROM_PICK(route16c)
STD_ROM_FN(route16c)
static INT32 route16cInit()
{
INT32 nRet = DrvInit();
if (nRet == 0)
{
// Patch protection
DrvZ80ROM0[0x00e9] = 0x3a;
DrvZ80ROM0[0x0754] = 0xc3;
DrvZ80ROM0[0x0755] = 0x63;
DrvZ80ROM0[0x0756] = 0x07;
}
return nRet;
}
struct BurnDriver BurnDrvroute16c = {
"route16c", "route16", NULL, NULL, "1981",
"Route 16 (set 3, bootleg?)\0", NULL, "Tehkan/Sun (Centuri license)", "Route 16",
NULL, NULL, NULL, NULL,
BDF_GAME_WORKING | BDF_CLONE | BDF_ORIENTATION_VERTICAL, 2, HARDWARE_MISC_PRE90S, GBF_MAZE, 0,
NULL, route16cRomInfo, route16cRomName, NULL, NULL, NULL, NULL, Route16InputInfo, Route16DIPInfo,
DrvInit, DrvExit, DrvFrame, Route16Draw, DrvScan, &DrvRecalc, 0x8,
route16cInit, DrvExit, DrvFrame, Route16Draw, DrvScan, &DrvRecalc, 0x8,
256, 256, 3, 4
};