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authorGravatarGravatar R. Belmont <rb6502@users.noreply.github.com>2013-02-10 21:14:29 +0000
committerGravatarGravatar R. Belmont <rb6502@users.noreply.github.com>2013-02-10 21:14:29 +0000
commitd5a8dd19dc332ed7f205e86ed3abf598429e23ca (patch) (github)
tree8b8dc8e90a427ff5f859767c53518f8a53e48433
parent76700eceac71df1c339ed3a0d4c543b8f6bdc535 (diff)
downloadmame-d5a8dd19dc332ed7f205e86ed3abf598429e23ca.tar.bz2
mame-d5a8dd19dc332ed7f205e86ed3abf598429e23ca.zip
apple2gs: Enable AE Vulcan IDE card (nw, will self-serve)
-rw-r--r--src/mess/drivers/apple2gs.c2
-rw-r--r--src/mess/machine/a2vulcan.c76
-rw-r--r--src/mess/machine/apple2.c4
3 files changed, 52 insertions, 30 deletions
diff --git a/src/mess/drivers/apple2gs.c b/src/mess/drivers/apple2gs.c
index 22ddb3d05d8..2a87471f1c4 100644
--- a/src/mess/drivers/apple2gs.c
+++ b/src/mess/drivers/apple2gs.c
@@ -68,6 +68,7 @@
#include "machine/a2sam.h"
#include "machine/a2alfam2.h"
#include "machine/a2midi.h"
+#include "machine/a2vulcan.h"
static const gfx_layout apple2gs_text_layout =
{
@@ -294,6 +295,7 @@ static SLOT_INTERFACE_START(apple2_cards)
SLOT_INTERFACE("sam", A2BUS_SAM) /* SAM Software Automated Mouth (8-bit DAC + speaker) */
SLOT_INTERFACE("alfam2", A2BUS_ALFAM2) /* ALF Apple Music II */
SLOT_INTERFACE("midi", A2BUS_MIDI) /* Generic 6840+6850 MIDI board */
+ SLOT_INTERFACE("vulcan", A2BUS_VULCAN) /* AE Vulcan IDE card */
// SLOT_INTERFACE("softcard", A2BUS_SOFTCARD) /* Microsoft SoftCard */ // appears not to be IIgs compatible?
// SLOT_INTERFACE("scsi", A2BUS_SCSI) /* Apple II SCSI Card */
SLOT_INTERFACE_END
diff --git a/src/mess/machine/a2vulcan.c b/src/mess/machine/a2vulcan.c
index b4e6010fbcd..5590525da7b 100644
--- a/src/mess/machine/a2vulcan.c
+++ b/src/mess/machine/a2vulcan.c
@@ -4,32 +4,51 @@
Applied Engineering Vulcan IDE controller
+ Our copy of ROM version 1.4 will refuse any drive > 40 megs (top 2 bytes of # blocks >= 0x15b).
+ Protection against field upgrades?
+
+ Vulcan Gold ROMs omit this protection but don't work with the version of the partitioner program
+ we have.
+
Recognized drives by IDE features parameters:
(# of cylinders is never checked, just heads, sectors, and the vendor specific at 0x0A)
- H S Vendor specific #5
- 8, 33 + 0x69
- 2, 33 + 0x69
- 4, 26 + 0x69
- 5, 29 + (any)
- 7, 29 + 0x44
- 9, 29 + (any)
- 9, 36 + 0x44
- 9, 36 + 0xff
- 7, 34 + (any)
- 4, 17 + 0x55
- 4, 26 + 0x55
- 5, 17 + 0x55
- 6, 26 + 0x55
- 2, 28 + 0x36
- 4, 28 + 0x36
- 4, 28 + 0x67
- 4, 27 + 0x43
- 5, 17 + 0x26
- 15, 32 + 0x43
- 16, 38 + 0x94
- 10, 17 + (any)
-
+ H S Vendor specific #5
+ 8, 33 + 0x69 0x31d blocks (400K?!)
+ 2, 33 + 0x69 0xa208 blocks (20 megs, 21237760 bytes)
+ 4, 26 + 0x69 0x14500 blocks (40 megs, 42598400 bytes)
+ 5, 29 + (any) 0x25c5b blocks (80 megs, 79214080 bytes) (chs = 1067,5,29)
+ 7, 29 + 0x44 0x34e19 blocks (100 megs, 110899712 bytes)
+ 9, 29 + (any) 0x44068 blocks (140 megs, 142659584 bytes) (chs = 1068,9,29)
+ 9, 36 + 0x44 0x54888 blocks (180 megs, 177278976 bytes)
+ 9, 36 + 0xff 0x645a8 blocks (200 megs, 210456576 bytes)
+ 7, 34 + (any) 0x32252 blocks (100 megs, 105161728 bytes) (chs = 863,7,34)
+ 4, 17 + 0x55 0xa218 blocks (20 megs, 21245952 bytes)
+ 4, 26 + 0x55 0xa218 blocks (20 megs, 21245952 bytes)
+ 5, 17 + 0x55 0x15234 blocks (40 megs, 44328960 bytes)
+ 6, 26 + 0x55 0x15234 blocks (40 megs, 44328960 bytes)
+ 2, 28 + 0x36 0xa250 blocks (20 megs, 21274624 bytes)
+ 4, 28 + 0x36 0x143c0 blocks (40 megs, 42434450 bytes)
+ 4, 28 + 0x67 0x143c0 blocks (40 megs, 42434450 bytes)
+ 4, 27 + 0x43 0x147cc blocks (40 megs, 42964992 bytes)
+ 5, 17 + 0x26 0x13ec0 blocks (40 megs, 41779200 bytes) (chs = 960,5,17)
+ 15, 32 + 0x43 0x5f6e0 blocks (200 megs, 200130560 bytes)
+ 16, 38 + 0x94 0x6540c blocks (200 megs, 212342784 bytes)
+ 10, 17 + (any) 0x2792f blocks (80 megs, 82992640 bytes) (chs = 954,10,17)
+
+ Partition block:
+ +0000: 0xAE 0xAE signature
+ +0002: bytesum of remaining 508 bytes of partition block
+ +0005: total # of blocks (3 bytes)
+ +000E: boot partition # (0 based)
+ +0100: partition records
+
+ Partition record:
+ +02: partition number (seems to be only valud for non-CLEAR partitions)
+ +03: little-endian unsigned word: # of 512 byte blocks
+ +06: bit 6 set for ON, bits 0-2 = 0 CLEAR, 1 PRODOS, 2 DOS 3.3, 3 PASCAL, 4 CP/M
+ +07: Partition name (Apple high-ASCII, zero terminated unless full 10 chars)
+
*********************************************************************/
#include "a2vulcan.h"
@@ -107,9 +126,9 @@ void a2bus_vulcanbase_device::device_start()
astring tempstring;
m_rom = device().machine().root_device().memregion(this->subtag(tempstring, VULCAN_ROM_REGION))->base();
- // patch partition table check failure
-// m_rom[0x59e] = 0xea;
-// m_rom[0x59f] = 0xea;
+ // disable 40 meg partition size limit / protection
+ m_rom[0x59e] = 0xea;
+ m_rom[0x59f] = 0xea;
save_item(NAME(m_lastdata));
save_item(NAME(m_ram));
@@ -217,7 +236,7 @@ void a2bus_vulcanbase_device::write_c0nx(address_space &space, UINT8 offset, UIN
break;
default:
- printf("Write %02x @ C0n%x\n", data, offset);
+ logerror("a2vulcan: write %02x @ unhandled C0n%x\n", data, offset);
break;
}
}
@@ -247,7 +266,8 @@ UINT8 a2bus_vulcanbase_device::read_c800(address_space &space, UINT16 offset)
return m_ram[offset + m_rambank];
}
- return m_rom[(offset & 0x3ff)+m_rombank];
+ offset -= 0x400;
+ return m_rom[offset+m_rombank];
}
void a2bus_vulcanbase_device::write_c800(address_space &space, UINT16 offset, UINT8 data)
diff --git a/src/mess/machine/apple2.c b/src/mess/machine/apple2.c
index 3eb4db3be94..33d96d120cc 100644
--- a/src/mess/machine/apple2.c
+++ b/src/mess/machine/apple2.c
@@ -841,8 +841,8 @@ static void apple2_mem_CE00(running_machine &machine, offs_t begin, offs_t end,
}
else
{
- meminfo->read_handler = &state->rd_c800;
- meminfo->write_handler = &state->wd_c800;
+ meminfo->read_handler = &state->rd_ce00;
+ meminfo->write_handler = &state->wd_ce00;
}
}
}