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CHANGELOG.md

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Change History for rexsim

3.1.0

  • Pressing Ctrl+A on serial port forms now opens the send file dialog to make following WRAMPmon's instructions not useless.
  • Switches are on when they're up, not down. This has changed since the REX boards.
  • Coloured interrupt indicators only appear if they are unmasked in $cctrl.

r21 - 3.0.0

  • Various changes to reflect the Basys implementation of WRAMP. This includes visuals and the specifications of the board: clock rate, amount of RAM, new parallel controls, etc.
  • Bump version to 3.0.0 and begin using semantic versioning scheme
  • Update WRAMPmon to version 0.7
  • Fix the warnings that were generated by xbuild
  • Annotations including Address Bus, Program Counter, and Interrupts have been moved underneath the picture of the board. The new board does not have physical lights for interrupts.
  • BUGFIX: Each component now only resets once when the program starts.
  • BUGFIX: Reset button no longer clobbers RAM while WRAMPmon init is still running - The CPU tick thread now pauses while a reset operation is underway.
  • BUGFIX: Revert change in r17 to correctly not throw a GPF when the KU bit of $cctrl is set to zero from kernel mode.
  • BUGFIX: GPFs and arithmetic exceptions are thrown correctly, rather than crashing the program.
  • BUGFIX: The "set character position" escape sequence (\033[yy;xxH) is now correctly interpreted as a 1-indexed value rather than a 0-indexed value.

r20

  • Update to version 2.0 with Virtual Memory and Protection
  • BUGFIX: Combining digits on the seven-segment displays was incorrectly using all bits in the registers when SSD-Decoding was enabled.
  • BUGFIX: Program Counter was not constrained to 20 bits
  • FEATURE: Added support for virtual memory and protection in user mode
  • Undocumented: Fixes the bug present in r19 which makes rfe leave the KU bit set to 1.

r19

  • Enhancement: "fat finger" interface for pressing both parallel buttons at the same time by clicking between them.

r18

  • Fixed warnings
  • Updated version number to 1.5

r17

  • Option to override disassembly formatting
  • Updated to match what appears to be a bug in the physical WRAMP processor: explicitly setting the KU bit of $cctrl to zero, while in kernel mode, results in the value being changed successfully but also triggers a GPF
  • Updated bootloader image version to 0.6
  • Updated to .net 4.5

r16

  • BUGFIX: Interrupt acknowledgement was ignored in parallel and serial IO devices

r15

  • BUGFIX: negative address offsets were being handled incorrectly
  • BUGFIX: values larger than one byte were not being correctly masked in the serial device

r14

  • Updated version numbers to 1.2

r13

  • BUGFIX: Simulator allowed writes to readonly register $0

r12

  • Fixed version numbers

r11

  • Updated version number

r10

  • Removed unnecessary code from the timer device
  • Fixed timer behaviour: now correctly copies Load to Count when enabling the timer
  • Updated to v1.0.0.1

r9

  • Added breakpoints (accessible through the Memory (RAM) form).

r8

  • Backtracked to .net 3.5 for compatibility with mono

r7

  • Added option to toggle CPU throttling

r6

  • BUGFIX: negative immediate values are now sign-extended appropriately.
  • BUGFIX: BasicSerialPortForm now displays an error when receiving an unsupported ASCII escape sequence, rather than crashing.
  • FEATURE: Single-stepping code, pausing execution

r5

  • Changed target to Any CPU

r4

  • The proper initial commit...

r3

  • Removed initial commit, since it was empty...

r2

-- Blank commit message on this revision --

r1

  • Initial commit