Commit Graph

1028 Commits

Author SHA1 Message Date
joevt
5aaae40d94 Add Nvidia vendor ID.
In case you want to emulate an Nvidia GPU in the future (for Core Image, etc.)
2023-01-11 00:05:23 -08:00
joevt
190718fbee Add BAR 0 to control.
BAR 0 exists on a real Power Mac 8600 and the dingusppc 7500.

On a Power Mac 8600, the initial value is 0x84000003. In Open Firmware, you can write to all bits of the BAR and read the value back except the 2 least significant bits are always %11. Bit 0 indicates I/O space. Bit 1 is reserved and should be zero so maybe this is not a real I/O space BAR. 0x8400000 is written to the BAR by Open Firmware. It doesn't look like a normal I/O address which are usually 16 bits.

On the emulated 7500, 0x02000000 is written to the BAR by Open Firmware sometime during probe-all. The BAR did not behave as it does in the Power Mac 8600. This commit fixes that.

Two questions remain:
1) Which fcode writes to the BAR? Is it the probe fcode or is it the control fcode? There's no config-_! in the control fcode.
2) What is the purpose of the BAR? Writing to it can cause a hang. The testbits code below seems to succeed - it restores the original value after reading the result of testing each bit and before displaying the result. The values shown for the MSB (0x84 on the 8600 and 0x02 on the 7500) could be three flag bits.

```
dev vci0
: testbits { adr ; org }
	cr
	adr config-l@ dup -> org ." original : " 8 u.r cr
	20 0 do
		1 1f i - << dup 8 u.r ."  : "
		adr config-l!
		adr config-l@
		org adr config-l!
		8 u.r cr
	loop
	;

15810 testbits \ 15810 is the address of the BAR on the emulated 7500.
```
2023-01-11 00:05:23 -08:00
joevt
37c352955c Allow bit 1 of I/O BARs to be set.
Usually bit 1 of I/O BARs is 0 since it is reserved, but control has an I/O BAR where this bit is set.
bar_cfg is used to determine the default values of the least significant bits (2 bits for I/O BARs and 4 bits for Memory BARs).
The upper bits of bar_cfg determine which bits can be set and also determines the size of the BAR.
2023-01-11 00:05:23 -08:00
joevt
fb56a6b536 Fix gazelle sys-id.
It should match AAPL,cpu-id property from real Power Mac 6500.
2023-01-11 00:05:23 -08:00
Maxim Poliakovski
74b457819a Update .gitignore 2023-01-09 00:40:48 +01:00
Maxim Poliakovski
0118b347f3 Clean up build scripts. 2023-01-08 23:29:25 +01:00
Maxim Poliakovski
101a8d33b0 Manage Windows build dependencies with vcpkg. 2023-01-08 22:27:13 +01:00
Maxim Poliakovski
eb3f978c7b Update Capstone and fix its compilation. 2022-12-30 22:31:51 +01:00
Maxim Poliakovski
9ea4a465f4 machinegazelle: tiny comment improvement. 2022-12-23 23:45:26 +01:00
Maxim Poliakovski
41a34ffab6 Basic Gazelle (PM 6500) emulation. 2022-12-23 17:19:46 +01:00
Maxim Poliakovski
8002737124 Basic O'Hare I/O controller emulation. 2022-12-23 17:19:46 +01:00
Maxim Poliakovski
7ba8921649 ppcemu: add PVR for 603ev. 2022-12-23 17:19:46 +01:00
Maxim Poliakovski
a1d9fcfa9d Basic PSX memory controller emulation. 2022-12-23 17:19:46 +01:00
Maxim Poliakovski
648dfcd47b ppcmmu: fix BAT state updates. 2022-12-20 14:58:45 +01:00
Maxim Poliakovski
f6e208267e bandit: more config space registers. 2022-12-19 01:28:16 +01:00
Maxim Poliakovski
24ccdabedc bandit: add PSX style PCI bridge. 2022-12-18 23:40:56 +01:00
Maxim Poliakovski
a189c94980 scsihd: fix READ_CAPACITY_10 command.
Also bump internal buffer size to 2 MB
to temporarily fix buffer overflows.
2022-12-14 16:14:53 +01:00
Maxim Poliakovski
dee225ee8f atabasedevice: add ATAPI signature at device reset. 2022-12-12 15:07:19 +01:00
Maxim Poliakovski
52bb87b72a Improve ATA interface. 2022-12-12 02:36:56 +01:00
Maxim Poliakovski
78528a1a16 floppyimg: correct format for MFM DC42 images. 2022-12-12 02:27:42 +01:00
dingusdev
0dd9a3d9b1 Further ATA cmd work 2022-12-11 16:08:43 -07:00
Maxim Poliakovski
df02f5053b floppyimg: initial support for Disk Copy 4.2 images. 2022-12-11 23:00:52 +01:00
Maxim Poliakovski
86b0174b13 Fix previous. 2022-12-09 01:07:08 +01:00
Maxim Poliakovski
daf3ecde4e More ATA interface cleanup. 2022-12-09 01:03:09 +01:00
dingusdev
1e9ec5d7ae Start ATA command support 2022-12-08 15:29:04 -07:00
Maxim Poliakovski
2537751fa7 Clean up ATA interface. 2022-12-08 08:04:09 +01:00
Maxim Poliakovski
df1a56305a atabasedevice: rework task file registers. 2022-12-08 00:16:10 +01:00
Maxim Poliakovski
6173a782f2 Implement ATA hard disk stub. 2022-12-07 23:36:56 +01:00
Maxim Poliakovski
a892842b8f Refactor ATA/IDE classes. 2022-12-07 22:36:25 +01:00
dingusdev
58908621e6 IDE refinements 2022-12-05 08:42:51 -07:00
dingusdev
311538b81d Fix IDE functionality 2022-11-26 21:34:54 -07:00
Maxim Poliakovski
14bcb6c08a Clean up previous commit. 2022-11-23 20:28:09 +01:00
joevt
09d374f626 Log PCI config write values MSB first
Writes to config registers of invalid or non-existent PCI devices are logged. They should be logged with most significant byte first.
The values enter the methods in reverse byte order so they need to be byte swapped (except when size is 1) for logging.
The result is that this command in Open Firmware:
`12345678 16800 config-l!`
will log this:
`VCI0 err: write attempt to non-existing VCI device ??:0d.0 @00.l = 12345678`
2022-11-23 19:55:05 +01:00
joevt
072d5ae330 Fix Expansion ROM BAR writes
The bits that can be set are the enable bit (bit 0) plus the bits represented by exp_bar_cfg which is determined by the size of the ROM which is calculated to be a power of 2 and a minimum of 2K.
2022-11-23 12:25:28 +01:00
Maxim Poliakovski
3b0e2c677d dbdma: disable two logging messages. 2022-11-18 18:07:32 +01:00
Maxim Poliakovski
4f05d3dae6 swim3: implement reading the Step register. 2022-11-18 18:06:46 +01:00
Maxim Poliakovski
d96351763f swim3: emulate on-chip 1 us timer. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
a0dd1884b3 macio: properly wire floppy DMA. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
a4ff58e9ee New floppy access logic with improved timing. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
447941abe0 machinetnt: fix default RAM allocation. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
9835b96e87 floppyimg: assume raw image by default. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
9f4c248e4c Rework DBDMA logic for bidirectional channels. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
98ccef732f TimerManager: more microseconds related constants. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
dac50fe0fb GrandCentral: fix DMA dispatching. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
76e0fab33a superdrive: implement eject disk command. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski
585c5fd4ca Guess low-level floppy disk format based on image size.
Also add fdd_fmt property for manually specifying disk
format.
2022-11-17 18:03:18 +01:00
dingusdev
a58ce8aeb3 Slight tweak to lscbx 2022-11-15 08:01:57 -07:00
dingusdev
8f99510af0 Fixed lscbx 2022-11-15 07:40:37 -07:00
Maxim Poliakovski
13684f7c0b scsicdrom: implement READ_CAPACITY_10 command. 2022-11-14 02:08:05 +01:00
Maxim Poliakovski
5f0358a347 Implement basic SCSI CD-ROM emulation. 2022-11-14 00:55:05 +01:00