1. 27 Nov, 2011 1 commit
    • Robert Sprowson's avatar
      Reindent Arthur2. · 2d883d8d
      Robert Sprowson authored
      Expand tabs.
      Swap DCI for instructions now Objasm 4 is out.
      Symbols for FSControl_CAT/RUN/OPT changed to non Arthur definitions.
      Still boots on IOMD class, no other testing.
      
      Version 5.35, 4.79.2.124. Tagged as 'Kernel-5_35-4_79_2_124'
      2d883d8d
  2. 08 Aug, 2011 1 commit
    • Jeffrey Lee's avatar
      Add zero page relocation support · 2247d8e9
      Jeffrey Lee authored
      Detail:
        A whole mass of changes to add high processor vectors + zero page relocation support to the Cortex branch of the kernel
        At the moment the code can only cope with two ZeroPage locations, &0 and &FFFF0000. But with a bit more tweaking those restrictions can probably be lifted, allowing ZeroPage to be hidden at almost any address (assuming it's fixed at compile time). If I've done my job right, these restrictions should all be enforced by asserts.
        There's a new option, HiProcVecs, in hdr/Options to control whether high processor vectors are used. When enabling it and building a ROM, remember:
        * FPEmulator needs to be built with the FPEAnchor=High option specified in the components file (not FPEAnchorType=High as my FPEmulator commit comments suggested)
        * ShareFS needs unplugging/removing since it can't cope with it yet
        * Iyonix users will need to use the latest ROOL boot sequence, to ensure the softloaded modules are compatible (OMAP, etc. don't really softload much so they're OK with older sequences)
        * However VProtect also needs patching to fix a nasty bug there - http://www.riscosopen.org/tracker/tickets/294
        The only other notable thing I can think of is that the ProcessTransfer code in s/ARM600 & s/VMSAv6 is disabled if high processor vectors are in use (it's fairly safe to say that code is obsolete in HAL builds anyway?)
        Fun challenge for my successor: Try setting ZeroPage to &FFFF00FF (or similar) so its value can be loaded with MVN instead of LDR. Then use positive/negative address offsets to access the contents.
        File changes:
        - hdr/ARMops - Modified ARMop macro to take the ZeroPage pointer as a parameter instead of 'zero'
        - hdr/Copro15ops - Corrected $quick handling in myISB macro
        - hdr/Options - Added ideal setting for us to use for HiProcVecs
        - s/AMBControl/allocate, s/AMBControl/growp, s/AMBControl/mapslot, s/AMBControl/memmap, s/AMBControl/service, s/AMBControl/shrinkp, s/Arthur2, s/Arthur3, s/ArthurSWIs, s/ChangeDyn, s/ExtraSWIs, s/HAL, s/HeapMan, s/Kernel, s/MemInfo, s/Middle, s/ModHand, s/MoreSWIs, s/MsgCode, s/NewIRQs, s/NewReset, s/Oscli, s/PMF/buffer, s/PMF/IIC, s/PMF/i2cutils, s/PMF/key, s/PMF/mouse, s/PMF/osbyte, s/PMF/oseven, s/PMF/osinit, s/PMF/osword, s/PMF/oswrch, s/SWINaming, s/Super1, s/SysComms, s/TickEvents, s/Utility, s/vdu/vdu23, s/vdu/vdudriver, s/vdu/vdugrafl, s/vdu/vdugrafv, s/vdu/vdupalxx, s/vdu/vdupointer, s/vdu/vduswis, s/vdu/vduwrch - Lots of updates to deal with zero page relocation
        - s/ARM600 - UseProcessTransfer option. Zero page relocation support. Deleted pre-HAL ClearPhysRAM code to tidy the file up a bit.
        - s/ARMops - Zero page relocation support. Set CPUFlag_HiProcVecs when high vectors are in use.
        - s/KbdResPC - Disable compilation of dead code
        - s/VMSAv6 - UseProcessTransfer option. Zero page relocation support.
      Admin:
        Tested with OMAP & Iyonix ROM softloads, both with high & low zero page.
        High zero page hasn't had extensive testing, but boot sequence + ROM apps seem to work.
      
      
      Version 5.35, 4.79.2.98.2.48. Tagged as 'Kernel-5_35-4_79_2_98_2_48'
      2247d8e9
  3. 15 Sep, 2005 1 commit
    • Ben Avison's avatar
      Bugfix to *Help. · 82d4de44
      Ben Avison authored
      Detail:
        Internationalisation of *Help code (ie probably dating back to RISC OS 3.1)
        broke the Escape condition checking. This is particularly nasty if you
        do *Help . on a machine with slow hardware scrolling!
      Admin:
        Not tested.
      
      Version 5.35, 4.79.2.89. Tagged as 'Kernel-5_35-4_79_2_89'
      82d4de44
  4. 07 Oct, 2002 1 commit
  5. 26 Jun, 2001 1 commit
    • Mike Stephens's avatar
      1) Bring IOMD HAL more up to date. Add support for new call HAL_CleanerSpace... · 63a6ffec
      Mike Stephens authored
      1) Bring IOMD HAL more up to date. Add support for new call HAL_CleanerSpace (preparation for StrongARM kernel support).
      
      2) In kernel, add HAL_CleanerSpace call (preparation for
      StrongARM and XScale core support). Fix bug found with
      ARMv3 support during test on Risc PC.
      
      3) Implement new API for kernel SWIs that have used top
      bits of addresses as flags. The new API has an extra
      flag that must be set, so kernel can distinguish and
      support both APIs. The reason for all this is that
      addresses are 32-bits now, people, keep up there. Briefly:
      
        OS_HeapSort
          bit 31 of r0 set for new API, r1 is full 32-bit address
          flags move from r1 bits 31-29 to r0 bits 30-28
      
        OS_ReadLine
          bit 31 of r1 set for new API, r0 is full 32-bit address
          flags move from bits 31,30 of r0 to bits 30,29 of r1
      
        OS_SubstituteArgs
          bit 31 of r2 set for new API, r0 is full 32-bit address
          flag moves from bit 31 of r0 to bit 30 of r2
      
      Tested on Risc PC and briefly on Customer A 2
      
      Ta
      
      Version 5.35, 4.79.2.41. Tagged as 'Kernel-5_35-4_79_2_41'
      63a6ffec
  6. 15 Jun, 2001 1 commit
    • Mike Stephens's avatar
      Merge in long command line support from Ursula kernel. · 8727ebaa
      Mike Stephens authored
      Look for LongCommandLine flag, command line size currently
      set at 1k.
      For HAL/32bit builds, the kernel buffer space is at high
      (top bit set) address, which may break some code using signed
      comparisons. So *beware* that there may be some latent
      bugs in old kernel code using these buffers, not yet found.
      One such bug, in s.Arthur2 found and fixed.
      Tested moderately on ARM9 desktop build.
      Lovely to reimplement things I did two and half years ago.
      
      Version 5.35, 4.79.2.37. Tagged as 'Kernel-5_35-4_79_2_37'
      8727ebaa
  7. 15 Sep, 2000 1 commit
    • Kevin Bracey's avatar
      * Converted to building with ObjAsm (but still a single object file using ORG). · 49836a59
      Kevin Bracey authored
      * Added ARM_IMB and ARM_IMBRange SWIs as recommended by ARMv5.
      * Some early prototype HAL bits popped in - a lot of source restructuring still
        to come.
      * New debug target creates an AIF image with debug information, and translates
        this into an ASCII object file for the 16702B logic analyser.
      
      Version 5.35, 4.79.2.1. Tagged as 'Kernel-5_35-4_79_2_1'
      49836a59
  8. 12 Apr, 2000 1 commit
    • Stewart Brodie's avatar
      Bug fixes only. · 53aadeeb
      Stewart Brodie authored
      Detail:
        "Podule" number now displayed again in *ROMModule output - flag
           preservation issue caused it to disappear in 5.23.
        *Eval output no longer misses its trailing space, neither do "Podule" or
          "Extn ROM" in *ROMModules output.
        Heap manager now works again in non-SVC modes.
        Exception dump now contains faked up 26-bit PC+PSR lookalike.
      Admin:
        Assembled.
      53aadeeb
  9. 04 Apr, 2000 1 commit
    • Kevin Bracey's avatar
      32-bit Kernel. · b4016e9c
      Kevin Bracey authored
      Details:
        The Kernel will now compile to produce a pure 32-bit system if No26bitCode is
        set to TRUE.
        If No26bitCode is FALSE, then the Kernel will be a standard 26-bit Kernel,
        although some internal changes have taken place to minimise compile
        switches between the two cases. See Docs.32bit for more technical info.
      
        The hardest part was the flood-fill...
      
      Other changes:
        Pointer shape changes now take place on the next VSync, rather than actually
        WAITING for the VSync. Turning the Hourglass on shouldn't slow your machine
        down by 5% now :)
      
        Lots of really crusty pre-IOMD code removed.
      
      Admin:
        Tested in 32 and 26-bit forms in a limited desktop build. Basically, this
        will need to see a lot of use to iron out difficulties. I'd like anyone who
        has a non-frozen project to at least attempt using this Kernel.
      
      Version 5.23. Tagged as 'Kernel-5_23'
      b4016e9c
  10. 19 Aug, 1999 1 commit
  11. 21 Jan, 1997 1 commit
  12. 06 Nov, 1996 1 commit
  13. 05 Nov, 1996 1 commit