TMF Hg

add state initialisation for expansion RAM

  • Tue, 28 Dec 2010 17:31:28 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Tue, 28 Dec 2010 17:31:28 +0000] rev 62
  • add state initialisation for expansion RAM

fixed expansion ram addressing, now detects base/expansion RAM counts correctly

  • Tue, 28 Dec 2010 17:25:46 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Tue, 28 Dec 2010 17:25:46 +0000] rev 61
  • fixed expansion ram addressing, now detects base/expansion RAM counts correctly

fixes to Base RAM addressing -- 512K detected OK now, still need to deal with Expansion RAM detect issues

  • Tue, 28 Dec 2010 17:23:04 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Tue, 28 Dec 2010 17:23:04 +0000] rev 60
  • fixes to Base RAM addressing -- 512K detected OK now, still need to deal with Expansion RAM detect issues

partial rewrite of memory / I/O handling code to reduce repetition

  • Tue, 28 Dec 2010 16:59:40 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Tue, 28 Dec 2010 16:59:40 +0000] rev 59
  • partial rewrite of memory / I/O handling code to reduce repetition

update hgignore

  • Wed, 15 Dec 2010 01:20:57 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Wed, 15 Dec 2010 01:20:57 +0000] rev 58
  • update hgignore

add CHS param checking (FDC), fix DMA address setting (DMA_XFER)

  • Tue, 14 Dec 2010 02:41:40 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Tue, 14 Dec 2010 02:41:40 +0000] rev 57
  • add CHS param checking (FDC), fix DMA address setting (DMA_XFER)

    * Floppy controller wasn't checking CHS values. Fixed.
    * DMA ADDRESS COUNT register was implemented completely wrong -- shifts and ANDmasks were wrong. Fixed.

    Boot PROM and Loader now run to the point of booting the kernel!

disable floppy interrupts (to CPU), force HDD int flag on (i.e. command always complete)

  • Mon, 13 Dec 2010 03:00:43 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Mon, 13 Dec 2010 03:00:43 +0000] rev 56
  • disable floppy interrupts (to CPU), force HDD int flag on (i.e. command always complete)

improve error and DMA handling

  • Sun, 12 Dec 2010 23:47:35 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Sun, 12 Dec 2010 23:47:35 +0000] rev 55
  • improve error and DMA handling

fix side-select bug in WDC FDC driver, was causing all reads to occur on side0... now the Loader boots!

  • Mon, 06 Dec 2010 01:43:04 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Mon, 06 Dec 2010 01:43:04 +0000] rev 54
  • fix side-select bug in WDC FDC driver, was causing all reads to occur on side0... now the Loader boots!

    Loader will boot, but immediately gives up on the floppy drive... Not sure why.

disc dma seems to work, but still no boot ;(

  • Mon, 06 Dec 2010 01:26:37 +0000
  • by Philip Pemberton <philpem@philpem.me.uk> [Mon, 06 Dec 2010 01:26:37 +0000] rev 53
  • disc dma seems to work, but still no boot ;(