GitLab

Version 2.40. Tagged as 'HdrSrc-2_40'

Version 2.39. Tagged as 'HdrSrc-2_39'

Detail:
  Kernel graphics allocations for Jeffrey Lee

Version 2.38. Tagged as 'HdrSrc-2_38'

Detail:
  * Add error block for BASIC module
  * Retire RTCSupport switch in Hdr:Machine.Machine

Version 2.37. Tagged as 'HdrSrc-2_37'

Detail:
  * Retire hdr:FreeWay in favour of hdr:FreewayReg
  * SWI chunk and error base for RTC module
  * New shared single error number for drivers to report hardware not found
  * Single service calls for boot sequence to inform (primarily ROM) modules
    that system variables have become valid


Version 2.36. Tagged as 'HdrSrc-2_36'

Detail:
  hdr/Sprite - Add OS_SpriteOp 38 (CreateRemoveAlpha), for converting between 1bpp masks, alpha masks, and alpha channels
Admin:
  Tested on BB-xM


Version 2.35. Tagged as 'HdrSrc-2_35'

Version 2.34. Tagged as 'HdrSrc-2_34'

Version 2.33. Tagged as 'HdrSrc-2_33'

Detail:
  Conditional MSR bug applied to the version of PLP that's used when both
  pre-ARMv3 and 32-bit compatibility is required (e.g. disc builds).
Admin:
  Spotted by Sprow

Version 2.32. Tagged as 'HdrSrc-2_32'

Detail:
  hdr/Macros - Add ColourConv macro to convert &BBGGRRxx palette entries to any sensible true-colour pixel format
  hdr/Sprite - Add definition of the new RISC OS 5 style sprite mode word format. Revise "new" 3.5 style format to include the wide mask flag introduced by ROL. Define new sprite types for ROL-compatible 64K sprites and new RISC OS 5 sprites.
Admin:
  Tested in OMAP3 ROM build on BB-xM
  Part of an implementation of the Extended Framebuffer Format spec:
  http://www.riscosopen.org/wiki/documentation/show/Extended%20Framebuffer%20Format%20Specification


Version 2.31. Tagged as 'HdrSrc-2_31'

Version 2.30. Tagged as 'HdrSrc-2_30'

Version 2.29. Tagged as 'HdrSrc-2_29'

Detail:
  A number of these macros, when build targeting all CPUs (e.g. in disc builds)
  only worked correctly if a register was specified to leave the original
  PSR state in.
Admin:
  Untested, but no risk to ROM builds.

Version 2.28. Tagged as 'HdrSrc-2_28'

Version 2.27. Not tagged

Detail:
  * Renamed Hdr:Freeway to Hdr:FreewayReg to avoid name clashes (old version
    remains for an interrim period)
  * Moved RemotePrinterSupport SWI base to match its CMHG file

Version 2.27. Tagged as 'HdrSrc-2_27'

Detail:
  Hdr:System:
  * Hdr:CPU.Arch added to the list of header files included here. This is
    because it's now needed by Hdr:CPU.Generic*.
  Hdr:CPU.Generic*:
  * Reintroduced ARMv2 compatibility to many macros. Should allow a new
    universal boot sequence to be constructed.
  * SCPSR in Generic26 optimised in cases where no PSR bits are preserved.
  * RemovePSRFromReg optimised for 32bit-only builds - becomes a no-op.
  Hdr:Machine.Machine:
  * Reordering of braces so that symbol "HAL" doesn't have to be defined -
    useful for disc builds, which target both HAL and non-HAL machines, so
    the symbol is undefined.
  * Added some comments and an assert about No26bitCode and No32bitCode.
Admin:
  Update originally from Rob Sprowson, bugfixes and additions and split into
  two parts by me.

Version 2.26. Tagged as 'HdrSrc-2_26'

Detail:
  Changes split into two parts to make the diffs readable. In this part:
  * Simplified the inclusion of Hdr:Machine.<Machine> - all current builds
    require a new enough version of objasm that the bug with GET directives
    inside conditionals appears to no longer apply.
  * A number of macros used to have large switches of almost-identical code
    depending upon whether an optional register was defined or not - these
    are now simplified by using a local variable to hold the register.
  * RETURNS is no longer wrapped in :LNOT: No26bitCode, since it could still
    be useful for exception return, non-transient callback handlers etc.
    However, its presence is still a warning sign for non-32-bit-compatible
    code, so it emits a warning unless you add an extra argument to indicate
    that you've vetted that the code is 32-bit safe.
  * Operator precedence bug fixed in SCPSR from Generic32 copied across to
    Generic26 (applies if bits to set/clear were given as expressions).
  * Conflicting set and clear bits in SCPSR now produce an error in both
    Generic26 and Generic32 (previously was only a warning in Generic26).
  * Added the same flag bit check in WritePSRc in Generic26 as already
    existed in Generic32.
  * Some comments reformatted for consistency.
  * Uses of mymrs replaced with MRS, and unconditional or flag-only uses of
    mymsr macro replaced with MSR (other ones remain to deal with the
    StrongARM bug).
  * RETURNVC and RETURNVS no longer accept NV condition code.
  * Removed BKPT macro (now implemented natively in objasm).
Admin:
  Update originally from Rob Sprowson, bugfixed and split into two parts by me.

Version 2.25. Tagged as 'HdrSrc-2_25'

Detail:
  * Updated comments in 32, All, All32
  * New Machine for IOMD class
  * Phoebe support removed
  * In Hdr:Machine.Machine:
    + Moved the 4 common switches to the top (No32bitCode; No26bitCode;
      NoUnaligned; StrongARM_MSR_bug).
    + Bracketed non 'All' switches, mid term most of these are actually
      kernel private switches, but the HAL kernel still includes a lot of
      pre HAL code so making it tricky to obsolete them in one pass.
    + Bracketed non 'HAL' switches, pending deletion.
    + Bracketed non 'HAL' STB switches, pending deletion.
    + Deleted unused "NewClockChip", "CDVPoduleIRQs", "OldComboSupport",
       "DoPOSTwithoutPowerOn", "M_Phoebe".
    + Moved "HAL32"; "HAL26"; "ROMSizeOffset" to kernel header.
    + Added some comments.
Admin:
  Changes provided by Sprow

Version 2.24. Tagged as 'HdrSrc-2_24'

Version 2.23. Tagged as 'HdrSrc-2_23'

Version 2.22. Tagged as 'HdrSrc-2_22'

Detail:
  hdr/Machine/Machine - Enabled 256 colour teletext mode for M_ARM11ZF. High-res teletext also enabled, as the kernel doesn't support low-res 256 colour teletext.
Admin:
  Tested on Raspberry Pi


Version 2.21. Tagged as 'HdrSrc-2_21'

Version 2.20. Tagged as 'HdrSrc-2_20'

Also added DrawFiles to indicate key numbers graphically; these should be
considered to update PRM figures 11.1 and 23.3 - 23.5 for post-Archimedes
hardware. These complement the file Hdr:Keyboard.

Version 2.19. Tagged as 'HdrSrc-2_19'

Version 2.18. Tagged as 'HdrSrc-2_18'

Version 2.17. Tagged as 'HdrSrc-2_17'

Detail:
  Hdr:Machine.All32 was an exact duplicate of Hdr:Machine.All
Admin:
  Checked that the NoARMv3 variable is now different in the two cases

Version 2.16. Tagged as 'HdrSrc-2_16'

Version 2.15. Tagged as 'HdrSrc-2_15'

Detail:
  hdr/Machine/Machine - Enabled RTCSupport for M_ARM11ZF. Required for any IIC-attached RTC on the Raspberry Pi to be picked up by the kernel.
Admin:
  Untested locally, but reported working by Dave Higton


Version 2.14. Tagged as 'HdrSrc-2_14'

Version 2.13. Tagged as 'HdrSrc-2_13'

Version 2.12. Tagged as 'HdrSrc-2_12'

Also removed obsolete STASH and GRAB macros.

Version 2.11. Tagged as 'HdrSrc-2_11'

Detail:
  This is necessary to enable the Raspberry Pi HAL to provide non-volatile RAM.
Admin:
  Tested on Raspberry Pi

Version 2.10. Tagged as 'HdrSrc-2_10'

Version 2.09. Tagged as 'HdrSrc-2_09'

Retagged as 'HdrSrc-2_08'

Version 2.08. Not tagged

Detail:
  * Hdr:CMOS gains bit definitions for byte &10 (from allocations master copy)
  * Hdr:NdrDebug changed to avoid assembler warnings about push of LR+PC
    (at least for :LNOT: No32bitCode case)
Admin:
  Changes received from Rob Sprowson

Version 2.08. Tagged as 'HdrSrc-2_08'

Detail:
  This allows the cache properties of CPUs like the ARM1176JZF-S (as featured
  in the Raspberry Pi) to be correctly determined
Admin:
  Tested in a Raspberry Pi build

Version 2.07. Tagged as 'HdrSrc-2_07'

Version 2.06. Tagged as 'HdrSrc-2_06'

Detail:
  * Documented ADFS's and SCSIFS's CMOS use better in Hdr:CMOS.
  * Fixed typo in Hdr:NewErrors that causes asasm to emit a warning.
  * Fixed Hdr:OsBytes so that it doesn't trip up Hdr2H. Also listed hex and
    decimal OS_Byte numbers in comments for ease of reference.
  * Fixed some formatting in Hdr:CMOS and Hdr:NewErrors.

Version 2.05. Tagged as 'HdrSrc-2_05'

Detail:
  hdr/Macros - Add new SETBCD macro, to convert a number to BCD and assign it to a variable
Admin:
  Tested in OMAP3 ROM build


Version 2.04. Tagged as 'HdrSrc-2_04'

Detail:
  The result of an investigation of error number usage in filing systems -
  note that there is still a strong correlation between many of these and the
  filing system error blocks. It seemed wise to record them somewhere.
Admin:
  Tested in a Tungsten ROM build to check for name clashes.

Version 2.03. Tagged as 'HdrSrc-2_03'