sd_snatcher has just published an XML extension to allow openMSX to use the A&L's FAST!DiskROM v1.1. This is is a new and very optimized DiskROM for CDX-2 standard floppydisk interfaces created by Adriano. It features a lot of improvements over the standard DiskBIOS:
- The very efficient disk-buffer handling allows MSX-BASIC to always have 25.4KB free, independently of the number of drives connected.
- Highly optimized FDC access routines. Up to 20KB/s transfer rate. The standard MSX diskBIOS only reaches 10KB/s, and the CDX-2 interfaces original BIOS only make 5KB/s.
- 100% compatible with MSX-DOS2 (all CDX2-based interfaces had compatibility problems with MSX-DOS2)
- Supports up to four diskdrives connected to the same interface (DS0 to DS3 drive selection signal is fully implemented)
- Drive letters are dynamically assigned. So it doesn't matter if you have a single drive installed to the system set as DS1, like the PC's default configuration.
- New CALL command added: CALL CHKDSK. As the name suggests, it checks the disk integrity and mark all bad sectors.
- Supports formating disks in interleave 1:1 or 1:2
- Simulated Clock for MSX1 machines
Relevant link: FAST!DiskROM extension for openMSX
Comments (5)
By iamweasel2
Nemesis (666)
21-04-2009, 01:03
By Manuel
Ascended (17293)
21-04-2009, 23:34
By iamweasel2
Nemesis (666)
22-04-2009, 19:36
By Manuel
Ascended (17293)
23-04-2009, 18:27
By iamweasel2
Nemesis (666)
24-04-2009, 19:03