ShuriZma
/
project64
mirror of https://github.com/project64/project64.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[Disk] Timing changes for Motor

This commit is contained in:
LuigiBlood 2020-06-05 17:25:01 +02:00
parent 2ad2b969f0
commit cc2c4e8786
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Source/Project64-core/N64System/Mips/Disk.cpp
View File

@ -109,13 +109,15 @@ void DiskCommand()
{ {
//Emulate Seek Times, send interrupt later //Emulate Seek Times, send interrupt later
uint32_t seektime = 0x179200; uint32_t seektime = 0x179200;
//Start Motor, can take half a second, delay the response
if (g_Reg->ASIC_STATUS & DD_STATUS_MTR_N_SPIN) if (g_Reg->ASIC_STATUS & DD_STATUS_MTR_N_SPIN)
{ {
seektime += 0x800000; seektime += (0x5A00000 / 2);
g_Reg->ASIC_STATUS &= ~DD_STATUS_MTR_N_SPIN; g_Reg->ASIC_STATUS &= ~DD_STATUS_MTR_N_SPIN;
} }
//Get Zone //Get Zone to calculate seek times
uint32_t track = g_Reg->ASIC_CUR_TK >> 16 & 0x0FFF; uint32_t track = g_Reg->ASIC_CUR_TK >> 16 & 0x0FFF;
uint32_t zone = 0; uint32_t zone = 0;
uint32_t zonebound = 0; uint32_t zonebound = 0;
@ -130,6 +132,8 @@ void DiskCommand()
break; break;
} }
} }
//Add delay depending on the zone
switch (zone) switch (zone)
{ {
case 0: case 0:
@ -161,8 +165,11 @@ void DiskCommand()
break; break;
} }
//Set timer for seek response
g_SystemTimer->SetTimer(g_SystemTimer->DDSeekTimer, seektime, false); g_SystemTimer->SetTimer(g_SystemTimer->DDSeekTimer, seektime, false);
g_SystemTimer->SetTimer(g_SystemTimer->DDMotorTimer, 0x6000000, false);
//Set timer for motor to shutdown in 5 seconds, reset the timer if other seek commands were sent
g_SystemTimer->SetTimer(g_SystemTimer->DDMotorTimer, 0x5A00000 * 5, false);
} }
else else
{ {