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Implemented software-requested DMA block transfers, fixes #405, and also fixes UMBPCI's DMACHK ISA DMA tests;

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Reworked a few things and re-implemented memory write protection in the SCAT emulation, to require less unusual mappings;
Removed two files that should not be there;
Made sure all graphics cards' memory mappings are mapped as MEM_MAPPING_EXTERNAL;
Added MEM_MAPPING_ROMCS flag to signal that a mapping responds to MEMCS* and made the BIOS and Intel flash mappings use it.
This commit is contained in:
OBattler
2019-09-28 17:32:05 +02:00
parent b1f91ff54a
commit 6627282efb
13 changed files with 147 additions and 1943 deletions
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3
src/video/vid_pgc.c
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@@ -44,7 +44,7 @@
*
* This is expected to be done shortly.
*
* Version: @(#)vid_pgc.c 1.0.2 2019/03/03
* Version: @(#)vid_pgc.c 1.0.3 2019/09/28
*
* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
* John Elliott, <jce@seasip.info>
@@ -2633,7 +2633,6 @@ pgc_init(pgc_t *dev, int maxw, int maxh, int visw, int vish,
/* Make it a 16k mapping at C4000 (will be C4000-C7FFF),
because of the emulator's granularity - the original
mapping will conflict with hard disk controller BIOS'es. */
// mem_mapping_add(&dev->mapping, 0xc6000, 2048,
mem_mapping_add(&dev->mapping, 0xc4000, 16384,
pgc_read,NULL,NULL, pgc_write,NULL,NULL,
NULL, MEM_MAPPING_EXTERNAL, dev);