From 3d234147a60a347f4c9cf01335f32890b2553377 Mon Sep 17 00:00:00 2001 From: Thomas Harte Date: Mon, 22 Aug 2022 10:22:19 -0400 Subject: [PATCH] Add in collected specs. --- Machines/Apple/AppleII/SCSICard.cpp | 52 +++++++++++++++++++ Machines/Apple/AppleII/SCSICard.hpp | 33 ++++++++++++ .../Clock Signal.xcodeproj/project.pbxproj | 8 +++ 3 files changed, 93 insertions(+) create mode 100644 Machines/Apple/AppleII/SCSICard.cpp create mode 100644 Machines/Apple/AppleII/SCSICard.hpp diff --git a/Machines/Apple/AppleII/SCSICard.cpp b/Machines/Apple/AppleII/SCSICard.cpp new file mode 100644 index 000000000..b2cc40e79 --- /dev/null +++ b/Machines/Apple/AppleII/SCSICard.cpp @@ -0,0 +1,52 @@ +// +// SCSICard.cpp +// Clock Signal +// +// Created by Thomas Harte on 22/08/2022. +// Copyright © 2022 Thomas Harte. All rights reserved. +// + +#include "SCSICard.hpp" + +#include "../../../Components/5380/ncr5380.hpp" + +// Per the documentation around the GGLabs Apple II SCSI card clone: +// +// A 5380 is mapped to the first eight bytes of slot IO: +// +// $c0x0 R current SCSI data register +// $c0x0 W output data register +// $c0x1 R/W initiator command register +// $c0x2 R/W mode select register +// $c0x3 R/W target command register +// $c0x4 R SCSI bus status +// $c0x4 W select enable register +// $c0x5 R bus and status register +// $c0x6 R input data register +// $c0x7 R reset parity and interrupts +// (i.e. the 5380's standard registers in their usual order) +// +// The remaining eight are used for control functions: +// +// $c0x8 R/W PDMA/DACK +// $c0x9 R SCSI device ID +// $c0xa W memory bank select register +// $c0xb W reset 5380 SCSI chip +// $c0xc - [unused] +// $c0xd W PDMA mode enable +// $c0xe R read DRQ status through bit 7 +// $c0xf - [unused] +// +// Further, per that card's schematic: +// +// BANK REGISTER: bit 0..3 ROM Addr, 4..6 RAM Addr, 7 RSVD +// +// Which relates to the description: +// +// The card is also equipped with 16K of ROM and 8K of RAM. +// These are mapped in the $C800-$CFFF card memory using a banking +// scheme. The $C0xA bank register selects the which bank of RAM +// and ROM are mapped. RAM is always at $C800-$CBFF and ROM is +// at $CC00-$CFFF. The boot code in the first 256 bytes of ROM +// bank 0 is also mapped in the IOSEL space ($Cn00-$CnFF). +// diff --git a/Machines/Apple/AppleII/SCSICard.hpp b/Machines/Apple/AppleII/SCSICard.hpp new file mode 100644 index 000000000..ca7de978f --- /dev/null +++ b/Machines/Apple/AppleII/SCSICard.hpp @@ -0,0 +1,33 @@ +// +// SCSICard.hpp +// Clock Signal +// +// Created by Thomas Harte on 22/08/2022. +// Copyright © 2022 Thomas Harte. All rights reserved. +// + +#ifndef SCSICard_hpp +#define SCSICard_hpp + +#include "Card.hpp" +#include "../../ROMMachine.hpp" + +namespace Apple { +namespace II { + +class SCSICard: public Card { + public: + static ROM::Request rom_request(); + SCSICard(ROM::Map &); + + void perform_bus_operation(Select select, bool is_read, uint16_t address, uint8_t *value) final; + void run_for(Cycles cycles, int stretches) final; + + private: + // TODO. +}; + +} +} + +#endif /* SCSICard_hpp */ diff --git a/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj b/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj index 378b9f045..ca73c1ba4 100644 --- a/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj +++ b/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj @@ -254,6 +254,8 @@ 4B4A76301DB1A3FA007AAE2E /* AY38910.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4A762E1DB1A3FA007AAE2E /* AY38910.cpp */; }; 4B4B1A3C200198CA00A0F866 /* KonamiSCC.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4B1A3A200198C900A0F866 /* KonamiSCC.cpp */; }; 4B4B1A3D200198CA00A0F866 /* KonamiSCC.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4B1A3A200198C900A0F866 /* KonamiSCC.cpp */; }; + 4B4C81C528B3C5CD00F84AE9 /* SCSICard.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4C81C328B3C5CD00F84AE9 /* SCSICard.cpp */; }; + 4B4C81C628B3C5CD00F84AE9 /* SCSICard.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4C81C328B3C5CD00F84AE9 /* SCSICard.cpp */; }; 4B4DC8211D2C2425003C5BF8 /* Vic20.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4DC81F1D2C2425003C5BF8 /* Vic20.cpp */; }; 4B4DC82B1D2C27A4003C5BF8 /* SerialBus.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4DC8291D2C27A4003C5BF8 /* SerialBus.cpp */; }; 4B4DEC06252BFA56004583AC /* 65816Base.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4DEC05252BFA56004583AC /* 65816Base.cpp */; }; @@ -1359,6 +1361,8 @@ 4B4A762F1DB1A3FA007AAE2E /* AY38910.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = AY38910.hpp; sourceTree = ""; }; 4B4B1A3A200198C900A0F866 /* KonamiSCC.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = KonamiSCC.cpp; sourceTree = ""; }; 4B4B1A3B200198C900A0F866 /* KonamiSCC.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = KonamiSCC.hpp; sourceTree = ""; }; + 4B4C81C328B3C5CD00F84AE9 /* SCSICard.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = SCSICard.cpp; sourceTree = ""; }; + 4B4C81C428B3C5CD00F84AE9 /* SCSICard.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = SCSICard.hpp; sourceTree = ""; }; 4B4DC81F1D2C2425003C5BF8 /* Vic20.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Vic20.cpp; sourceTree = ""; }; 4B4DC8201D2C2425003C5BF8 /* Vic20.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = Vic20.hpp; sourceTree = ""; }; 4B4DC8271D2C2470003C5BF8 /* C1540.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = C1540.hpp; sourceTree = ""; }; @@ -4615,6 +4619,7 @@ 4BCE0050227CE8CA000CA200 /* AppleII.cpp */, 4BCE004E227CE8CA000CA200 /* DiskIICard.cpp */, 4B2E86E025DC95150024F1E9 /* Joystick.cpp */, + 4B4C81C328B3C5CD00F84AE9 /* SCSICard.cpp */, 4BCE004D227CE8CA000CA200 /* Video.cpp */, 4BCE004A227CE8CA000CA200 /* AppleII.hpp */, 4BF40A5A254263140033EA39 /* AuxiliaryMemorySwitches.hpp */, @@ -4623,6 +4628,7 @@ 4B2E86E125DC95150024F1E9 /* Joystick.hpp */, 4BF40A5525424C770033EA39 /* LanguageCardSwitches.hpp */, 4BE0151C286A8C8E00EA42E9 /* MemorySwitches.hpp */, + 4B4C81C428B3C5CD00F84AE9 /* SCSICard.hpp */, 4BCE004F227CE8CA000CA200 /* Video.hpp */, 4B8DF4F2254E141700F3433C /* VideoSwitches.hpp */, ); @@ -5579,6 +5585,7 @@ 4B055AB31FAE860F0060FFFF /* CSW.cpp in Sources */, 4B89451D201967B4007DE474 /* Disk.cpp in Sources */, 4BFEA2F02682A7B900EBF94C /* Dave.cpp in Sources */, + 4B4C81C628B3C5CD00F84AE9 /* SCSICard.cpp in Sources */, 4BDACBED22FFA5D20045EF7E /* ncr5380.cpp in Sources */, 4BC131772346DE9100E4FF3D /* StaticAnalyser.cpp in Sources */, 4B7962A22819681F008130F9 /* Decoder.cpp in Sources */, @@ -5755,6 +5762,7 @@ 4B8DF505254E3C9D00F3433C /* ADB.cpp in Sources */, 4B322E041F5A2E3C004EB04C /* Z80Base.cpp in Sources */, 4B0ACC2623775819008902D0 /* AtariST.cpp in Sources */, + 4B4C81C528B3C5CD00F84AE9 /* SCSICard.cpp in Sources */, 4B894530201967B4007DE474 /* StaticAnalyser.cpp in Sources */, 4B4518A31F75FD1C00926311 /* HFE.cpp in Sources */, 4B1B88BB202E2EC100B67DFF /* MultiKeyboardMachine.cpp in Sources */,