64 lines
2.5 KiB
ArmAsm
64 lines
2.5 KiB
ArmAsm
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//
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// This byte (hex $FF80, dec 65408) identifies Kernal revision on several machines. Although not all
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// of the, used it for versioning purpose, here is the list of all the values I could find. Sources:
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// - [CM64] Compute's Mapping the Commodore 64 (page 242/243)
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// - [MM] Marko Mäkelä article, http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/revisions.txt
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// - [VICE] Checked with ROMs included in VICE emulator
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// - [XEMU] Checked with ROMs retrieved by XEMU emulator
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//
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// IDEA: put here a value, that is different from any version currently known, as
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// a warning that this is not a Commodore Kernal or anything already known.
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//
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// C64 - values from the official ROMs:
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// - $00 - [CM64] then current number [MM] 901227-02 [VICE] C64 Revision 2
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// - $03 - [CM64] (not mentionned) [MM] 901227-02, 901227-03 [VICE] C64 Revision 3
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// - $43 - [CM64] (not mentionned) [MM] 251104-04 [VICE] SX-64
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// - $64 - [CM64] PET64 ROM [MM] (not mentionned) [VICE] PET64
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// - $AA - [CM64] first version of ROM [MM] 901227-01 [VICE] C64 Revision 1
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//
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// C64 - values from unofficial 3rd party ROMs:
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// - $00 - Turbo Trans, Turbo Access, Turbo Process
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// - $03 - SuperCPU ROM 1.40, 2.04, also unofficial 0.7 ROM from [VICE],
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// DolphinDOS 2.0, JiffyDOS 6.01, EXOS V3/4,
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// Datel Mercury V3 US, Datel DOS-ROM V1.2, Datel Turbo ROM II V3.2+,
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// Turbo Process US,
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// burst CIA 1/2 Kernal by Albert, SD2IEC Kernal 1.0/2.0/2.1/2.2 by Claus
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// - $4A - S-JiffyDOS
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// - $53 - Professional DOS V1, SpeedDOS Plus 2.7
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// - $C3 - Cockroach Turbo ROM V1
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//
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// PET:
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// - $40 - [VICE] PET 2001-8N
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// - $A7 - [VICE] PET 30XX
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// - $AA - [VICE] PET 40XX, PET 80XX, SuperPET
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//
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// CBM II:
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// - $E0 - [VICE] 5x0, 6x0, 7x0 models
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//
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// VIC-20:
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// - $16 - [VICE] all models, also VIC-20 JiffyDOS PAL/NTSC
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//
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// 264 family:
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// - $01 - [VICE] 364
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// - $05 - [VICE] C16, C116, Plus/4
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// - $06 - (unofficial) JiffyDOS NTSC
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// - $81 - [VICE] 232
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// - $86 - (unofficial) JiffyDOS PAL
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//
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// C128:
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// - $01 - see https://www.pagetable.com/?p=1058
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// - $02 - unreleased updated ROM, see https://www.pagetable.com/?p=1058
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//
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// Commodore prototypes:
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// - $04 - [XEMU] 64 mode ROM of the C65 prototype, ROM 910111
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// - $FF - [XEMU] C65 native mode, ROM 910111
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// - $FF - [XEMU] Commodore LCD
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//
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// Non-Commodore machines:
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// - $FF - Commander X16 (emulator r28)
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//
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kernal_revision:
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.byte $F0 // chosen not to conflict with anything known so far
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