mirror of
https://github.com/InvisibleUp/uvmac.git
synced 2025-04-01 11:30:48 +00:00
Move all Mac Plus modules to new VIA code
The emulator is completely broken, but *at least* it compiles. I should probably add the ICT task management back in. I forget why I removed that. Maybe it was too tied to the old VIA implementation.
This commit is contained in:
InvisibleUp
parent
02b8c9c721
commit
0a2109f481
@ -36,6 +36,7 @@
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#include "GLOBGLUE.h"
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#include "HW/RAM/RAMADDR.h"
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#include "HW/VIA/VIAEMDEV.h"
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/*
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ReportAbnormalID unused 0x111D - 0x11FF
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@ -57,12 +58,9 @@ bool ControlKeyPressed = false;
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IMPORTPROC m68k_reset(void);
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IMPORTPROC IWM_Reset(void);
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IMPORTPROC SCC_Reset(void);
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//IMPORTPROC SCC_Reset(void);
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IMPORTPROC SCSI_Reset(void);
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IMPORTPROC VIA1_Reset(void);
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#if EmVIA2
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IMPORTPROC VIA2_Reset(void);
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#endif
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IMPORTPROC VIA_Reset(void);
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IMPORTPROC Sony_Reset(void);
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IMPORTPROC ExtnDisk_Access(CPTR p);
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@ -84,12 +82,9 @@ IMPORTPROC SetHeadATTel(ATTep p);
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IMPORTFUNC ATTep FindATTel(CPTR addr);
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IMPORTFUNC uint32_t SCSI_Access(uint32_t Data, bool WriteMem, CPTR addr);
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IMPORTFUNC uint32_t SCC_Access(uint32_t Data, bool WriteMem, CPTR addr);
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//IMPORTFUNC uint32_t SCC_Access(uint32_t Data, bool WriteMem, CPTR addr);
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IMPORTFUNC uint32_t IWM_Access(uint32_t Data, bool WriteMem, CPTR addr);
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IMPORTFUNC uint32_t VIA1_Access(uint32_t Data, bool WriteMem, CPTR addr);
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#if EmVIA2
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IMPORTFUNC uint32_t VIA2_Access(uint32_t Data, bool WriteMem, CPTR addr);
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#endif
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//IMPORTFUNC uint32_t VIA1_Access(uint32_t Data, bool WriteMem, CPTR addr);
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#if EmASC
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IMPORTFUNC uint32_t ASC_Access(uint32_t Data, bool WriteMem, CPTR addr);
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#endif
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@ -107,12 +102,9 @@ GLOBALVAR uint32_t disk_icon_addr;
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GLOBALPROC customreset(void)
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{
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IWM_Reset();
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SCC_Reset();
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//SCC_Reset();
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SCSI_Reset();
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VIA1_Reset();
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#if EmVIA2
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VIA2_Reset();
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#endif
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VIA_Reset();
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Sony_Reset();
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Extn_Reset();
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#if CurEmMd <= kEmMd_Plus
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@ -129,17 +121,8 @@ GLOBALPROC customreset(void)
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}
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GLOBALVAR uint8_t * RAM = nullpr;
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#if EmVidCard
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GLOBALVAR uint8_t * VidROM = nullpr;
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#endif
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#if IncludeVidMem
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GLOBALVAR uint8_t * VidMem = nullpr;
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#endif
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GLOBALVAR uint8_t Wires[kNumWires];
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#if WantDisasm
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IMPORTPROC m68k_WantDisasmContext(void);
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@ -1081,6 +1064,7 @@ LOCALPROC SetUp_RAM24(void)
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LOCALPROC SetUp_address(void)
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{
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ATTer r;
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bool MemOverlay = VIA_ReadBit(VIA1, rIRA, 4);
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if (MemOverlay) {
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r.cmpmask = Overlay_ROM_CmpZeroMask |
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@ -1237,8 +1221,11 @@ GLOBALFUNC uint32_t MMDV_Access(ATTep p, uint32_t Data,
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"access VIA1 nonstandard address");
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}
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#endif
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Data = VIA1_Access(Data, WriteMem,
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(addr >> 9) & kVIA1_Mask);
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if (WriteMem) {
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VIA_Write(VIA1, (addr >> 9) & kVIA1_Mask, Data);
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} else {
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Data = VIA_Read(VIA1, (addr >> 9) & kVIA1_Mask);
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}
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}
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break;
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@ -1250,11 +1237,10 @@ GLOBALFUNC uint32_t MMDV_Access(ATTep p, uint32_t Data,
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|| (0x3e02 == (addr & 0x1FFFF))))
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{
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/* for weirdness at offset 0x71E in ROM */
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Data =
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(VIA2_Access(Data, WriteMem,
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(addr >> 9) & kVIA2_Mask) << 8)
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| VIA2_Access(Data, WriteMem,
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(addr >> 9) & kVIA2_Mask);
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Data = (
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VIA_Read(VIA2, (addr >> 9) & kVIA2_Mask) << 8) |
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VIA_Read(VIA2, (addr >> 9) & kVIA2_Mask);
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);
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} else {
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ReportAbnormalID(0x1109, "access VIA2 word");
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@ -1305,7 +1291,7 @@ GLOBALFUNC uint32_t MMDV_Access(ATTep p, uint32_t Data,
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#endif
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#endif
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} else {
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SCC_Reset();
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//SCC_Reset();
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}
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} else
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#endif
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@ -1328,8 +1314,8 @@ GLOBALFUNC uint32_t MMDV_Access(ATTep p, uint32_t Data,
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"access SCC nonstandard address");
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}
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#endif
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Data = SCC_Access(Data, WriteMem,
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(addr >> 1) & kSCC_Mask);
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/*Data = SCC_Access(Data, WriteMem,
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(addr >> 1) & kSCC_Mask);*/
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}
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break;
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case kMMDV_Extn:
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@ -1548,8 +1534,9 @@ GLOBALPROC VIAorSCCinterruptChngNtfy(void)
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NewIPL = 0;
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}
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#else
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uint8_t VIAandNotSCC = VIA1_InterruptRequest
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& ~ SCCInterruptRequest;
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uint8_t VIA1_InterruptRequest = (VIA_Read(VIA1, rIFR) & 0b01111111) != 0;
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uint8_t SCCInterruptRequest = 0;
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uint8_t VIAandNotSCC = VIA1_InterruptRequest & ~ SCCInterruptRequest;
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uint8_t NewIPL = VIAandNotSCC
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| (SCCInterruptRequest << 1)
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| (InterruptButton << 2);
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@ -1562,20 +1549,14 @@ GLOBALPROC VIAorSCCinterruptChngNtfy(void)
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GLOBALFUNC bool AddrSpac_Init(void)
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{
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int i;
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for (i = 0; i < kNumWires; i++) {
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Wires[i] = 1;
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}
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MINEM68K_Init(
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&CurIPL);
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MINEM68K_Init(&CurIPL);
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return true;
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}
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GLOBALPROC Memory_Reset(void)
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{
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MemOverlay = 1;
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// reset memory overlay
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VIA_WriteBit(VIA1, rIRA, 4, 1, false);
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SetUpMemBanks();
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}
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@ -1626,7 +1607,7 @@ GLOBALFUNC bool FindKeyEvent(int *VirtualKey, bool *KeyDown)
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#ifdef _VIA_Debug
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#include <stdio.h>
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#endif
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/*
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GLOBALVAR uimr ICTactive;
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GLOBALVAR iCountt ICTwhen[kNumICTs];
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@ -1650,7 +1631,7 @@ GLOBALFUNC iCountt GetCuriCount(void)
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GLOBALPROC ICT_add(int taskid, uint32_t n)
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{
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/* n must be > 0 */
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// n must be > 0
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int32_t x = GetCyclesRemaining();
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uint32_t when = NextiCount - x + n;
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@ -1664,3 +1645,4 @@ GLOBALPROC ICT_add(int taskid, uint32_t n)
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NextiCount = when;
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}
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}
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*/
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@ -162,40 +162,6 @@ EXPORTPROC VIAorSCCinterruptChngNtfy(void);
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EXPORTVAR(bool, InterruptButton)
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EXPORTPROC SetInterruptButton(bool v);
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enum {
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kICT_SubTick,
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#if EmClassicKbrd
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kICT_Kybd_ReceiveCommand,
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kICT_Kybd_ReceiveEndCommand,
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#endif
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#if EmADB
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kICT_ADB_NewState,
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#endif
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#if EmPMU
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kICT_PMU_Task,
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#endif
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kICT_VIA1_Timer1Check,
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kICT_VIA1_Timer2Check,
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#if EmVIA2
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kICT_VIA2_Timer1Check,
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kICT_VIA2_Timer2Check,
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#endif
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kNumICTs
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};
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EXPORTPROC ICT_add(int taskid, uint32_t n);
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#define iCountt uint32_t
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EXPORTFUNC iCountt GetCuriCount(void);
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EXPORTPROC ICT_Zap(void);
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EXPORTVAR(uimr, ICTactive)
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EXPORTVAR(iCountt, ICTwhen[kNumICTs])
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EXPORTVAR(iCountt, NextiCount)
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EXPORTVAR(uint8_t, Wires[kNumWires])
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#define kLn2CycleScale 6
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#define kCycleScale (1 << kLn2CycleScale)
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@ -22,14 +22,12 @@
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This code adapted from "Keyboard.c" in vMac by Philip Cummins.
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*/
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#ifndef AllFiles
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#include "SYSDEPNS.h"
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#include "UI/MYOSGLUE.h"
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#include "EMCONFIG.h"
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#include "GLOBGLUE.h"
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#endif
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#include "HW/KBRD/KBRDEMDV.h"
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#include "HW/VIA/VIAEMDEV.h"
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#ifdef _VIA_Debug
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#include <stdio.h>
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@ -39,8 +37,12 @@
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ReportAbnormalID unused 0x0B03 - 0x0BFF
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*/
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IMPORTPROC KYBD_ShiftOutData(uint8_t v);
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IMPORTFUNC uint8_t KYBD_ShiftInData(void);
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void KYBD_ShiftOutData(uint8_t v) {
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VIA_ShiftInData(VIA1, v);
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}
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uint8_t KYBD_ShiftInData(void) {
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return VIA_ShiftOutData(VIA1);
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}
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enum {
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kKybdStateIdle,
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@ -62,11 +64,16 @@ LOCALPROC GotKeyBoardData(uint8_t v)
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HaveKeyBoardResult = true;
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KeyBoardResult = v;
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} else {
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KYBD_ShiftOutData(v);
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VIA1_iCB2 = 1;
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v = VIA_Read(VIA1, rSR);
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VIA_RaiseInterrupt(VIA1, 2);
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}
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}
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static bool Kybd_CheckDataReady()
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{
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return VIA_ReadBit(VIA1, rIFR, 2);
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}
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LOCALVAR uint8_t InstantCommandData = 0x7B;
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LOCALFUNC bool AttemptToFinishInquiry(void)
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@ -163,7 +170,6 @@ GLOBALPROC DoKybd_ReceiveEndCommand(void)
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#endif
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HaveKeyBoardResult = false;
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KYBD_ShiftOutData(KeyBoardResult);
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VIA1_iCB2 = 1;
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}
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}
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}
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@ -172,13 +178,13 @@ GLOBALPROC Kybd_DataLineChngNtfy(void)
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{
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switch (KybdState) {
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case kKybdStateIdle:
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if (VIA1_iCB2 == 0) {
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if (Kybd_CheckDataReady() == 0) {
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KybdState = kKybdStateRecievingCommand;
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#ifdef _VIA_Debug
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fprintf(stderr, "posting kICT_Kybd_ReceiveCommand\n");
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#endif
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ICT_add(kICT_Kybd_ReceiveCommand,
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6800UL * kCycleScale / 64 * ClockMult);
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/*ICT_add(kICT_Kybd_ReceiveCommand,
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6800UL * kCycleScale / 64 * ClockMult);*/
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if (InquiryCommandTimer != 0) {
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InquiryCommandTimer = 0; /* abort Inquiry */
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@ -186,14 +192,14 @@ GLOBALPROC Kybd_DataLineChngNtfy(void)
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}
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break;
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case kKybdStateRecievedCommand:
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if (VIA1_iCB2 == 1) {
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if (Kybd_CheckDataReady() == 1) {
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KybdState = kKybdStateRecievingEndCommand;
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#ifdef _VIA_Debug
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fprintf(stderr,
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"posting kICT_Kybd_ReceiveEndCommand\n");
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#endif
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ICT_add(kICT_Kybd_ReceiveEndCommand,
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6800UL * kCycleScale / 64 * ClockMult);
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/*ICT_add(kICT_Kybd_ReceiveEndCommand,
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6800UL * kCycleScale / 64 * ClockMult);*/
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}
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break;
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}
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@ -23,7 +23,6 @@
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Macintosh port of vMac, by Philip Cummins.
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*/
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#ifndef AllFiles
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#include "SYSDEPNS.h"
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#include "UI/MYOSGLUE.h"
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#include "UTIL/ENDIANAC.h"
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@ -31,9 +30,38 @@
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#include "GLOBGLUE.h"
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#include "HW/SCC/SCCEMDEV.h"
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#include "HW/M68K/MINEM68K.h"
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#endif
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#include "HW/MOUSE/MOUSEMDV.h"
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#include "HW/VIA/VIAEMDEV.h"
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static void Mouse_SetButtonUp(bool value)
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{
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switch(CurEmMd) {
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case kEmMd_Twig43:
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case kEmMd_Twiggy:
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case kEmMd_128K:
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case kEmMd_512Ke:
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case kEmMd_Plus:
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VIA_WriteBit(VIA1, rIRB, 3, value, false);
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return;
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default:
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return;
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}
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}
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static bool Mouse_Enabled()
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{
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switch(CurEmMd) {
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case kEmMd_Twig43:
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case kEmMd_Twiggy:
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case kEmMd_128K:
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case kEmMd_512Ke:
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case kEmMd_Plus:
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//return SCC_InterruptsEnabled();
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return true;
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default:
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return false;
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}
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}
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GLOBALPROC Mouse_Update(void)
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{
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@ -110,7 +138,7 @@ GLOBALPROC Mouse_Update(void)
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(nullpr != (p = EvtQOutP())))
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{
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if (EvtQElKindMouseButton == p->kind) {
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MouseBtnUp = p->u.press.down ? 0 : 1;
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Mouse_SetButtonUp(p->u.press.down ? 0 : 1);
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EvtQOutDone();
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MasterEvtQLock = 4;
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}
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@ -27,6 +27,7 @@
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#include "UTIL/ENDIANAC.h"
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#include "EMCONFIG.h"
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#include "GLOBGLUE.h"
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#include "HW/VIA/VIAEMDEV.h"
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/* define _RTC_Debug */
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#ifdef _RTC_Debug
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@ -143,11 +144,53 @@ GLOBALPROC DumpRTC(void)
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}
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#endif
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/// VIA interface wrappers ///////////////////////////////////////////////////
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bool RTC_CheckEnabled()
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{
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// for all Macs except Portable, which isn't emulated yet,
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return (VIA_ReadBit(VIA1, rIRB, 2) == 0);
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}
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bool RTC_CheckDataClock()
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{
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// for all Macs except Portable, which isn't emulated yet,
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return (VIA_ReadBit(VIA1, rIRB, 1) == 0);
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}
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bool RTC_GetSerialData()
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{
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// for all Macs except Portable, which isn't emulated yet,
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return (VIA_ReadBit(VIA1, rIRB, 0) == 0);
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}
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void RTC_SetSerialData(bool value)
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{
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// for all Macs except Portable, which isn't emulated yet,
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VIA_WriteBit(VIA1, rIRB, 0, value, false);
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}
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// Register outgoing ISRs
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void RTC_RegisterISRs()
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{
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// for all Macs except Portable, which isn't emulated yet,
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VIA_RegisterDataISR(DataRegB, VIA1, 2, RTCunEnabled_ChangeNtfy);
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VIA_RegisterDataISR(DataRegB, VIA1, 1, RTCclock_ChangeNtfy);
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VIA_RegisterDataISR(DataRegB, VIA1, 0, RTCdataLine_ChangeNtfy);
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}
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void RTC_RaiseOneSecIRQ()
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{
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VIA_RaiseInterrupt(VIA1, 0);
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}
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/// End VIA wrappers /////////////////////////////////////////////////////////
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GLOBALFUNC bool RTC_Init(void)
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{
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int Counter;
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uint32_t secs;
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RTC.Mode = RTC.ShiftData = RTC.Counter = 0;
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RTC.DataOut = RTC.DataNextOut = 0;
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RTC.WrProtect = false;
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@ -296,13 +339,11 @@ if ((0 == vMacScreenDepth) || (vMacScreenDepth >= 4)) {
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#endif /* RTCinitPRAM */
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RTC_RegisterISRs();
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return true;
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}
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#ifdef RTC_OneSecond_PulseNtfy
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IMPORTPROC RTC_OneSecond_PulseNtfy(void);
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#endif
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GLOBALPROC RTC_Interrupt(void)
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{
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uint32_t Seconds = 0;
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@ -319,10 +360,6 @@ GLOBALPROC RTC_Interrupt(void)
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RTC.Seconds_1[3] = (Seconds & 0xFF000000) >> 24;
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LastRealDate = NewRealDate;
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#ifdef RTC_OneSecond_PulseNtfy
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RTC_OneSecond_PulseNtfy();
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#endif
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}
|
||||
}
|
||||
|
||||
@ -437,9 +474,11 @@ LOCALPROC RTC_DoCmd(void)
|
||||
}
|
||||
}
|
||||
|
||||
/// INTERRUPT SERVICE ROUTINES ///////////////////////////////////////////////
|
||||
|
||||
GLOBALPROC RTCunEnabled_ChangeNtfy(void)
|
||||
{
|
||||
if (RTCunEnabled) {
|
||||
if (!RTC_CheckEnabled()) {
|
||||
/* abort anything going on */
|
||||
if (RTC.Counter != 0) {
|
||||
#ifdef _RTC_Debug
|
||||
@ -457,24 +496,22 @@ GLOBALPROC RTCunEnabled_ChangeNtfy(void)
|
||||
|
||||
GLOBALPROC RTCclock_ChangeNtfy(void)
|
||||
{
|
||||
if (! RTCunEnabled) {
|
||||
if (RTCclock) {
|
||||
RTC.DataOut = RTC.DataNextOut;
|
||||
RTC.Counter = (RTC.Counter - 1) & 0x07;
|
||||
if (RTC.DataOut) {
|
||||
RTCdataLine = ((RTC.ShiftData >> RTC.Counter) & 0x01);
|
||||
/*
|
||||
should notify VIA if changed, so can check
|
||||
data direction
|
||||
*/
|
||||
if (RTC.Counter == 0) {
|
||||
RTC.DataNextOut = 0;
|
||||
}
|
||||
} else {
|
||||
RTC.ShiftData = (RTC.ShiftData << 1) | RTCdataLine;
|
||||
if (RTC.Counter == 0) {
|
||||
RTC_DoCmd();
|
||||
}
|
||||
if (RTC_CheckEnabled() && RTC_CheckDataClock()) {
|
||||
RTC.DataOut = RTC.DataNextOut;
|
||||
RTC.Counter = (RTC.Counter - 1) & 0x07;
|
||||
if (RTC.DataOut) {
|
||||
RTC_SetSerialData((RTC.ShiftData >> RTC.Counter) & 0x01);
|
||||
/*
|
||||
should notify VIA if changed, so can check
|
||||
data direction
|
||||
*/
|
||||
if (RTC.Counter == 0) {
|
||||
RTC.DataNextOut = 0;
|
||||
}
|
||||
} else {
|
||||
RTC.ShiftData = (RTC.ShiftData << 1) | RTC_GetSerialData();
|
||||
if (RTC.Counter == 0) {
|
||||
RTC_DoCmd();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -38,6 +38,8 @@
|
||||
"Zilog SCC/ESCC User's Manual".
|
||||
*/
|
||||
|
||||
#if 0
|
||||
|
||||
#ifndef AllFiles
|
||||
#include "SYSDEPNS.h"
|
||||
|
||||
@ -47,6 +49,7 @@
|
||||
#endif
|
||||
|
||||
#include "HW/SCC/SCCEMDEV.h"
|
||||
#include "HW/VIA/VIAEMDEV.h"
|
||||
|
||||
/*
|
||||
ReportAbnormalID unused 0x0721, 0x0722, 0x074D - 0x07FF
|
||||
@ -254,6 +257,33 @@ static int rx_data_offset = 0;
|
||||
/* when data pending, this is used */
|
||||
#endif
|
||||
|
||||
/// VIA INTERFACE FUNCTIONS //////////////////////////////////////////////////
|
||||
|
||||
bool SCC_GetvSCCWrReq()
|
||||
{
|
||||
return VIA_ReadBit(VIA1, rIRA, 7);
|
||||
}
|
||||
|
||||
void SCC_SetvSCCWrReq(bool value)
|
||||
{
|
||||
VIA_WriteBit(VIA1, rIRA, 7, value, false);
|
||||
}
|
||||
|
||||
bool SCC_GetvSync()
|
||||
{
|
||||
switch(CurEmMd) {
|
||||
case kEmMd_SE:
|
||||
case kEmMd_SEFDHD:
|
||||
case kEmMd_II:
|
||||
case kEmMd_IIx:
|
||||
return VIA_ReadBit(VIA1, rIRA, 3);
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// END VIA INTERFACE FUNCTIONS //////////////////////////////////////////////
|
||||
|
||||
EXPORTFUNC bool SCC_InterruptsEnabled(void)
|
||||
{
|
||||
return SCC.MIE;
|
||||
@ -2799,3 +2829,5 @@ GLOBALFUNC uint32_t SCC_Access(uint32_t Data, bool WriteMem, CPTR addr)
|
||||
|
||||
return Data;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
@ -31,6 +31,7 @@
|
||||
#include "EMCONFIG.h"
|
||||
#include "GLOBGLUE.h"
|
||||
#include "HW/SCREEN/SCRNEMDV.h"
|
||||
#include "HW/VIA/VIAEMDEV.h"
|
||||
#include "CFGMAN.h"
|
||||
|
||||
#if ! IncludeVidMem
|
||||
@ -55,6 +56,11 @@ bool UseLargeScreenHack;
|
||||
char *ScreenColorBlack = NULL;
|
||||
char *ScreenColorWhite = NULL;
|
||||
|
||||
bool Screen_UseMainPage()
|
||||
{
|
||||
return VIA_ReadBit(VIA1, rIRA, 6);
|
||||
}
|
||||
|
||||
bool Screen_Init(void)
|
||||
{
|
||||
// enable a palette because heck it
|
||||
@ -101,7 +107,7 @@ void Screen_EndTickNotify(void)
|
||||
#if IncludeVidMem
|
||||
screencurrentbuff = VidMem;
|
||||
#else
|
||||
if (SCRNvPage2 == 1) {
|
||||
if (Screen_UseMainPage()) {
|
||||
screencurrentbuff = get_ram_address(kMain_Buffer);
|
||||
} else {
|
||||
screencurrentbuff = get_ram_address(kAlternate_Buffer);
|
||||
@ -110,3 +116,8 @@ void Screen_EndTickNotify(void)
|
||||
|
||||
Screen_OutputFrame(screencurrentbuff);
|
||||
}
|
||||
|
||||
void Screen_RaiseVBlank()
|
||||
{
|
||||
VIA_RaiseInterrupt(VIA1, 1);
|
||||
}
|
||||
|
||||
@ -21,6 +21,7 @@
|
||||
bool Screen_LoadCfg(void);
|
||||
bool Screen_Init(void);
|
||||
void Screen_EndTickNotify(void);
|
||||
void Screen_RaiseVBlank();
|
||||
|
||||
extern uint16_t vMacScreenHeight;
|
||||
extern uint16_t vMacScreenWidth;
|
||||
|
||||
@ -17,24 +17,19 @@
|
||||
/*
|
||||
SouND EMulated DEVice
|
||||
|
||||
Emulation of Sound in the Mac Plus could go here.
|
||||
Emulation of pre-ASC sound circuitry
|
||||
|
||||
This code adapted from "Sound.c" in vMac by Philip Cummins.
|
||||
*/
|
||||
|
||||
#ifndef AllFiles
|
||||
#include "SYSDEPNS.h"
|
||||
|
||||
#include "UI/MYOSGLUE.h"
|
||||
#include "EMCONFIG.h"
|
||||
#include "GLOBGLUE.h"
|
||||
#include "HW/M68K/MINEM68K.h"
|
||||
#endif
|
||||
|
||||
#include "HW/SOUND/SNDEMDEV.h"
|
||||
|
||||
|
||||
#if SoundEnabled
|
||||
#include "HW/VIA/VIAEMDEV.h"
|
||||
|
||||
#define kSnd_Main_Offset 0x0300
|
||||
#define kSnd_Alt_Offset 0x5F00
|
||||
@ -102,10 +97,28 @@ LOCALVAR const uint8_t SubTick_n[kNumSubTicks] = {
|
||||
LOCALVAR uint32_t SoundInvertPhase = 0;
|
||||
LOCALVAR uint16_t SoundInvertState = 0;
|
||||
|
||||
IMPORTFUNC uint16_t GetSoundInvertTime(void);
|
||||
/// VIA INTERFACE FUNCTIONS //////////////////////////////////////////////////
|
||||
|
||||
uint8_t MacSound_GetVolume()
|
||||
{
|
||||
return VIA_Read(VIA1, rIRA) & 0b00000111;
|
||||
}
|
||||
|
||||
bool MacSound_CheckDisabled()
|
||||
{
|
||||
return VIA_ReadBit(VIA1, rIRB, 7);
|
||||
}
|
||||
|
||||
bool MacSound_NeedAltBuffer()
|
||||
{
|
||||
return !VIA_ReadBit(VIA1, rIRA, 3);
|
||||
}
|
||||
|
||||
/// END VIA FUNCTIONS ////////////////////////////////////////////////////////
|
||||
|
||||
GLOBALPROC MacSound_SubTick(int SubTick)
|
||||
{
|
||||
if (!SoundEnabled) { return; }
|
||||
uint16_t actL;
|
||||
tpSoundSamp p;
|
||||
uint16_t i;
|
||||
@ -121,10 +134,10 @@ GLOBALPROC MacSound_SubTick(int SubTick)
|
||||
#else
|
||||
CPTR addr = addy + (2 * StartOffset);
|
||||
#endif
|
||||
uint16_t SoundInvertTime = GetSoundInvertTime();
|
||||
uint8_t SoundVolume = SoundVolb0
|
||||
| (SoundVolb1 << 1)
|
||||
| (SoundVolb2 << 2);
|
||||
uint16_t SoundInvertTime = ((VIA_Read(VIA1, rT1CH) << 8) | VIA_Read(VIA1, rT1CL));
|
||||
uint8_t SoundVolume = MacSound_GetVolume();
|
||||
bool SoundDisable = MacSound_CheckDisabled();
|
||||
if (VIA_ReadBit(VIA1, rACR, 7) == 0) { SoundInvertTime = 0; }
|
||||
|
||||
#if dbglog_HAVE && 0
|
||||
dbglog_StartLine();
|
||||
@ -219,5 +232,3 @@ label_retry:
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
@ -34,6 +34,10 @@ VIA_State_t VIA_State[VIA_MAXNUM];
|
||||
// Hardware reset
|
||||
bool VIA_Zap(void) {
|
||||
memset(VIA_State, 0, sizeof(VIA_State));
|
||||
for (int i = 0; i < VIA_MAXNUM; i += 1) {
|
||||
VIA_State[i].vBufA = 0xFF;
|
||||
VIA_State[i].vBufB = 0xFF;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
// Software reset
|
||||
@ -44,27 +48,44 @@ void VIA_Reset(void) {
|
||||
// Raise an interrupt by irq number
|
||||
void VIA_RaiseInterrupt(uint8_t id, uint8_t irq)
|
||||
{
|
||||
assert (id == 0 || id == 1);
|
||||
assert (irq <= 6);
|
||||
assert (id < VIA_MAXNUM);
|
||||
assert (irq < 7);
|
||||
|
||||
// Set interrupt flag
|
||||
VIA_State[id].vIFR |= (1 << irq) | (1 << 7);
|
||||
|
||||
// Call interrupt handler, if required
|
||||
/*// Call interrupt handler, if required
|
||||
if (VIA_State[id].vISR[irq] != NULL) {
|
||||
VIA_State[id].vISR[irq]();
|
||||
}
|
||||
}*/
|
||||
}
|
||||
|
||||
// Register a VIA interrupt service routine
|
||||
void VIA_RegisterISR(uint8_t id, uint8_t irq, VIA_ISR_t isr)
|
||||
/*void VIA_RegisterISR(uint8_t id, uint8_t irq, VIA_ISR_t isr)
|
||||
{
|
||||
assert(irq < 7);
|
||||
assert(id < VIA_MAXNUM);
|
||||
VIA_State[id].vISR[irq] = isr;
|
||||
}*/
|
||||
|
||||
// Register data state-change notification interrupts
|
||||
void VIA_RegisterDataISR(uint8_t port, uint8_t id, uint8_t irq, VIA_ISR_t isr)
|
||||
{
|
||||
assert(id < VIA_MAXNUM);
|
||||
assert(port == DataRegA || port == DataRegB);
|
||||
assert(irq < 8);
|
||||
|
||||
if (port == DataRegA) {
|
||||
VIA_State[id].vISR_A[irq] = isr;
|
||||
} else {
|
||||
VIA_State[id].vISR_B[irq] = isr;
|
||||
}
|
||||
}
|
||||
|
||||
// Tick VIA timer 1 (and set PB7 as needed)
|
||||
static void VIA_TickTimer1(uint8_t id)
|
||||
{
|
||||
assert(id < VIA_MAXNUM);
|
||||
VIA_State_t *via = &VIA_State[id];
|
||||
uint8_t T1_MODE = (via->vACR & 0b11000000) >> 6;
|
||||
bool T1_PULSE = (T1_MODE & 0b01) != 0;
|
||||
@ -82,6 +103,7 @@ static void VIA_TickTimer1(uint8_t id)
|
||||
// Tick VIA timer 2. Raise interrupt if required
|
||||
static void VIA_TickTimer2(uint8_t id, bool forceTick)
|
||||
{
|
||||
assert(id < VIA_MAXNUM);
|
||||
VIA_State_t *via = &VIA_State[id];
|
||||
// Check we're not in the mode where T2 counts PB6 falling edges
|
||||
bool T2_ISCOUNTER = VIA_ReadBit(id, rACR, 5);
|
||||
@ -95,21 +117,18 @@ static void VIA_TickTimer2(uint8_t id, bool forceTick)
|
||||
// Tick all timers by one step (call every 1.2766 us)
|
||||
void VIA_TickTimers()
|
||||
{
|
||||
for (uint8_t id = 0; id < 2; id += 1) {
|
||||
for (uint8_t id = 0; id < VIA_MAXNUM; id += 1) {
|
||||
VIA_TickTimer1(id);
|
||||
VIA_TickTimer2(id, false);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Write to a register
|
||||
// Write to a register, bypassing data ISRs
|
||||
void VIA_Write(uint8_t id, VIA_Register_t reg, uint8_t data)
|
||||
{
|
||||
assert(id == 0 || id == 1);
|
||||
assert(id < VIA_MAXNUM);
|
||||
assert(reg < rINVALID);
|
||||
|
||||
// store PB6's state
|
||||
bool PB6_old = VIA_ReadBit(id, rIRB, 6);
|
||||
VIA_State_t *via = &VIA_State[id];
|
||||
|
||||
switch(reg) {
|
||||
@ -146,19 +165,12 @@ void VIA_Write(uint8_t id, VIA_Register_t reg, uint8_t data)
|
||||
break;
|
||||
default: assert(true);
|
||||
}
|
||||
|
||||
// Decrement timer 2 if in counter mode and PB6 hits falling edge
|
||||
bool PB6_new = VIA_ReadBit(id, rIRB, 6);
|
||||
bool T2_ISCOUNTER = VIA_ReadBit(id, rACR, 5);
|
||||
if (PB6_old == true && PB6_new == false && T2_ISCOUNTER) {
|
||||
VIA_TickTimer2(id, true);
|
||||
}
|
||||
}
|
||||
|
||||
// Read to a register
|
||||
uint8_t VIA_Read(uint8_t id, VIA_Register_t reg)
|
||||
{
|
||||
assert(id == 0 || id == 1);
|
||||
assert(id < VIA_MAXNUM);
|
||||
assert(reg < rINVALID);
|
||||
VIA_State_t *via = &VIA_State[id];
|
||||
|
||||
@ -170,14 +182,14 @@ uint8_t VIA_Read(uint8_t id, VIA_Register_t reg)
|
||||
case rORA: return via->vBufA;
|
||||
case rDDRB: return via->vDirB;
|
||||
case rDDRA: return via->vDirA;
|
||||
case rT1CL: via->vIFR &= 0b10111111;
|
||||
return (via->vT1C & 0xFF00);
|
||||
case rT1CH: return (via->vT1C & 0x00FF) >> 8;
|
||||
case rT1LL: return (via->vT1L & 0xFF00);
|
||||
case rT1LH: return (via->vT1L & 0x00FF) >> 8;
|
||||
case rT2CL: via->vIFR &= 0b11011111;
|
||||
return (via->vT2C & 0xFF00);
|
||||
case rT2CH: return (via->vT2C & 0x00FF) >> 8;
|
||||
case rT1CL: //via->vIFR &= 0b10111111;
|
||||
return (via->vT1C & 0xFF00) >> 8;
|
||||
case rT1CH: return (via->vT1C & 0x00FF);
|
||||
case rT1LL: return (via->vT1L & 0xFF00) >> 8;
|
||||
case rT1LH: return (via->vT1L & 0x00FF);
|
||||
case rT2CL: //via->vIFR &= 0b11011111;
|
||||
return (via->vT2C & 0xFF00) >> 8;
|
||||
case rT2CH: return (via->vT2C & 0x00FF);
|
||||
case rSR: return via->vSR;
|
||||
case rACR: return via->vACR;
|
||||
case rPCR: return via->vPCR;
|
||||
@ -194,19 +206,32 @@ bool VIA_ReadBit(uint8_t id, VIA_Register_t reg, uint8_t bit)
|
||||
}
|
||||
|
||||
// Write a single bit
|
||||
void VIA_WriteBit(uint8_t id, VIA_Register_t reg, uint8_t bit, bool set)
|
||||
void VIA_WriteBit(uint8_t id, VIA_Register_t reg, uint8_t bit, bool value, bool runISR)
|
||||
{
|
||||
uint8_t data = VIA_Read(id, reg);
|
||||
if (set) { data |= (1 << bit); }
|
||||
else { data &= ~(1 << bit); }
|
||||
uint8_t olddata = VIA_Read(id, reg);
|
||||
uint8_t data = olddata;
|
||||
if (value) { data |= (1 << bit); } // set
|
||||
else { data &= ~(1 << bit); } // clear
|
||||
VIA_Write(id, reg, data);
|
||||
|
||||
// Call data-change ISR
|
||||
if (!runISR || (data == olddata)) { return; }
|
||||
if (reg == rIRA || reg == rORA) {
|
||||
if (VIA_State[id].vISR_A[bit] != NULL) {
|
||||
VIA_State[id].vISR_A[bit]();
|
||||
}
|
||||
} else if (reg == rIRB) {
|
||||
if (VIA_State[id].vISR_B[bit] != NULL) {
|
||||
VIA_State[id].vISR_B[bit]();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Called by either end; store data in vSR.
|
||||
// TODO: this probably shouldn't be instant.
|
||||
void VIA_ShiftInData(uint8_t id, uint8_t v)
|
||||
{
|
||||
assert(id == 0 | id == 1);
|
||||
assert(id < VIA_MAXNUM);
|
||||
VIA_State[id].vSR = v;
|
||||
}
|
||||
|
||||
@ -214,6 +239,7 @@ void VIA_ShiftInData(uint8_t id, uint8_t v)
|
||||
// TODO: this probably shouldn't be instant.
|
||||
uint8_t VIA_ShiftOutData(uint8_t id)
|
||||
{
|
||||
assert(id < VIA_MAXNUM);
|
||||
return VIA_State[id].vSR;
|
||||
}
|
||||
|
||||
|
||||
@ -32,7 +32,10 @@ typedef struct {
|
||||
uint16_t vT1C; // Timer 1 counter
|
||||
uint16_t vT2L; // Timer 2 latch
|
||||
uint16_t vT2C; // Timer 2 counter
|
||||
VIA_ISR_t vISR[8]; // ISRs to automatically call when interrupt is raised
|
||||
|
||||
//VIA_ISR_t vISR[8]; // ISRs to automatically call when interrupt is raised
|
||||
VIA_ISR_t vISR_A[8]; // ISRs to call when vBufA changes
|
||||
VIA_ISR_t vISR_B[8]; // ISRs to call when vBufB changes
|
||||
} VIA_State_t;
|
||||
|
||||
/* Names from SY6522 datasheet */
|
||||
@ -56,6 +59,11 @@ typedef enum {
|
||||
rINVALID = 16, // end of list
|
||||
} VIA_Register_t;
|
||||
|
||||
#define DataRegA 0
|
||||
#define DataRegB 1
|
||||
#define VIA1 0
|
||||
#define VIA2 1
|
||||
|
||||
/// PUBLIC FUNCTIONS /////////////////////////////////////////////////////////
|
||||
|
||||
// Hardware reset
|
||||
@ -66,19 +74,21 @@ void VIA_Reset(void);
|
||||
// Raise an interrupt by irq number, calling registered ISR if required
|
||||
void VIA_RaiseInterrupt(uint8_t id, uint8_t irq);
|
||||
// Register a VIA interrupt service routine
|
||||
void VIA_RegisterISR(uint8_t id, uint8_t irq, VIA_ISR_t isr);
|
||||
//void VIA_RegisterISR(uint8_t id, uint8_t irq, VIA_ISR_t isr);
|
||||
// Register data state-change notification interrupts
|
||||
void VIA_RegisterDataISR(uint8_t port, uint8_t id, uint8_t bit, VIA_ISR_t isr);
|
||||
|
||||
// Tick all timers by one step (call every 1.2766 us)
|
||||
void VIA_TickTimers();
|
||||
|
||||
// Write to a register
|
||||
// Write to a register. Does not raise data ISRs.
|
||||
void VIA_Write(uint8_t id, VIA_Register_t reg, uint8_t data);
|
||||
// Read to a register
|
||||
uint8_t VIA_Read(uint8_t id, VIA_Register_t reg);
|
||||
// Read a single bit
|
||||
bool VIA_ReadBit(uint8_t id, VIA_Register_t reg, uint8_t bit);
|
||||
// Write a single bit
|
||||
void VIA_WriteBit(uint8_t id, VIA_Register_t reg, uint8_t bit, bool set);
|
||||
// Write a single bit. Can raise data ISR if required.
|
||||
void VIA_WriteBit(uint8_t id, VIA_Register_t reg, uint8_t bit, bool value, bool runISR);
|
||||
|
||||
// NOTE: for these, raise the interrupt manually w/ VIA_RaiseInterrupt
|
||||
void VIA_ShiftInData(uint8_t id, uint8_t v);
|
||||
|
||||
@ -60,6 +60,16 @@ typedef struct DevMethods {
|
||||
} DevMethods_t;
|
||||
|
||||
const DevMethods_t DEVICES[] = {
|
||||
// VIA
|
||||
{
|
||||
.init = VIA_Zap,
|
||||
.reset = VIA_Reset,
|
||||
.starttick = VIA_TickTimers,
|
||||
.endtick = NULL,
|
||||
.subtick = NULL,
|
||||
.timebegin = NULL,
|
||||
.timeend = NULL,
|
||||
},
|
||||
// RTC
|
||||
{
|
||||
.init = EmRTC ? RTC_Init : NULL,
|
||||
@ -90,16 +100,6 @@ const DevMethods_t DEVICES[] = {
|
||||
.timebegin = NULL,
|
||||
.timeend = NULL,
|
||||
},
|
||||
// ICT
|
||||
{
|
||||
.init = NULL,
|
||||
.reset = ICT_Zap,
|
||||
.starttick = NULL,
|
||||
.endtick = NULL,
|
||||
.subtick = NULL,
|
||||
.timebegin = NULL,
|
||||
.timeend = NULL,
|
||||
},
|
||||
// IWM
|
||||
{
|
||||
.init = NULL,
|
||||
@ -111,7 +111,7 @@ const DevMethods_t DEVICES[] = {
|
||||
.timeend = NULL,
|
||||
},
|
||||
// SCC
|
||||
{
|
||||
/* {
|
||||
.init = NULL,
|
||||
.reset = SCC_Reset,
|
||||
.starttick = NULL,
|
||||
@ -119,7 +119,7 @@ const DevMethods_t DEVICES[] = {
|
||||
.subtick = NULL,
|
||||
.timebegin = NULL,
|
||||
.timeend = NULL,
|
||||
},
|
||||
},*/
|
||||
// SCSI
|
||||
{
|
||||
.init = NULL,
|
||||
@ -130,16 +130,6 @@ const DevMethods_t DEVICES[] = {
|
||||
.timebegin = NULL,
|
||||
.timeend = NULL,
|
||||
},
|
||||
// VIA1
|
||||
{
|
||||
.init = VIA_Zap,
|
||||
.reset = VIA_Reset,
|
||||
.starttick = VIA_TickTimers,
|
||||
.endtick = NULL,
|
||||
.subtick = NULL,
|
||||
.timebegin = NULL,
|
||||
.timeend = NULL,
|
||||
},
|
||||
// Sony disk drive
|
||||
{
|
||||
.init = NULL,
|
||||
@ -243,7 +233,7 @@ const DevMethods_t DEVICES[] = {
|
||||
{
|
||||
.init = Screen_Init,
|
||||
.reset = NULL,
|
||||
.starttick = Sixtieth_PulseNtfy, // VBlank interrupt
|
||||
.starttick = Screen_RaiseVBlank,
|
||||
.endtick = Screen_EndTickNotify,
|
||||
.subtick = NULL,
|
||||
.timebegin = NULL,
|
||||
@ -303,14 +293,14 @@ LOCALPROC SubTickTaskDo(void)
|
||||
might not equal CyclesScaledPerTick.
|
||||
*/
|
||||
|
||||
ICT_add(kICT_SubTick, CyclesScaledPerSubTick);
|
||||
//ICT_add(kICT_SubTick, CyclesScaledPerSubTick);
|
||||
}
|
||||
}
|
||||
|
||||
LOCALPROC SubTickTaskStart(void)
|
||||
{
|
||||
SubTickCounter = 0;
|
||||
ICT_add(kICT_SubTick, CyclesScaledPerSubTick);
|
||||
//ICT_add(kICT_SubTick, CyclesScaledPerSubTick);
|
||||
}
|
||||
|
||||
LOCALPROC SubTickTaskEnd(void)
|
||||
@ -334,7 +324,8 @@ LOCALPROC SixtiethSecondNotify(void)
|
||||
if (EmClassicKbrd) { KeyBoard_Update(); }
|
||||
//if (EmADB) { ADB_Update(); }
|
||||
|
||||
Sixtieth_PulseNtfy(); /* Vertical Blanking Interrupt */
|
||||
//Sixtieth_PulseNtfy(); /* Vertical Blanking Interrupt */
|
||||
Screen_RaiseVBlank();
|
||||
Sony_Update();
|
||||
|
||||
#if EmLocalTalk
|
||||
@ -398,7 +389,9 @@ LOCALFUNC bool InitEmulation(void)
|
||||
EmulatedHardwareZap();
|
||||
return true;
|
||||
}
|
||||
// VBlank interrupt
|
||||
|
||||
#if 0
|
||||
LOCALPROC ICT_DoTask(int taskid)
|
||||
{
|
||||
switch (taskid) {
|
||||
@ -478,18 +471,19 @@ LOCALFUNC uint32_t ICT_DoGetNext(uint32_t maxn)
|
||||
|
||||
return v;
|
||||
}
|
||||
#endif
|
||||
|
||||
LOCALPROC m68k_go_nCycles_1(uint32_t n)
|
||||
{
|
||||
uint32_t n2;
|
||||
uint32_t StopiCount = NextiCount + n;
|
||||
do {
|
||||
ICT_DoCurrentTasks();
|
||||
//uint32_t n2;
|
||||
//uint32_t StopiCount = NextiCount + n;
|
||||
//do {
|
||||
/*ICT_DoCurrentTasks();
|
||||
n2 = ICT_DoGetNext(n);
|
||||
NextiCount += n2;
|
||||
m68k_go_nCycles(n2);
|
||||
n = StopiCount - NextiCount;
|
||||
} while (n != 0);
|
||||
NextiCount += n2;*/
|
||||
m68k_go_nCycles(n);
|
||||
//n = StopiCount - NextiCount;
|
||||
//} while (n != 0);
|
||||
}
|
||||
|
||||
LOCALVAR uint32_t ExtraSubTicksToDo = 0;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user