Długo nie musieliśmy czekać na kolejne poprawki w tym świetnym emulatorze ośmiobitowych maszynek ATARI.
![[ATARI] Altirra 2.30 Test VI](www/picphoto/19a443df1.jpg)
W jaki sposób zaimplemetnować kickstart do emulatora Atari;)
Altirra 2.30 test 6 [10.02.2013]:.
features added
- Debugger: .tapedata command now supports seeking options and reports gaps.
- MMU: Added support for Axlon banked memory.
- Simulation: Split XL/XE hardware into separate XL and XE modes to handle hardware differences.
bugs fixed
- 65C816: The abs,X, abs,Y, (dp),Y, [dp],Y and (d,S),Y addressing modes can now cross bank boundaries.
- 65C816: An additional instruction is no longer executed after WAI before servicing the interrupt.
- 65C816: JMP (abs) now always reads from bank 0 instead of the data bank.
- 65C816: JMP (abs,X), and JSR (abs,X) now read from the program bank rather than the data bank.
- 65C816: Fixed switch between DL=0 and DL!=0 in emulation mode not taking effect immediately.
- 65C816: Indexed modes now properly take an additional cycle for writes and for 16-bit index registers.
- 65C816: The d,S addressing mode can now index out of page one in emulation mode.
- 65C816: d,S and (d,S),Y now always read from bank 0.
- 65C816: 16-bit stack operations can access page zero and page two in emulation mode.
- 65C816: TCS/TXS can no longer change SH in emulation mode.
- Debugger: Fixed disassembly of PEA ($F4) opcode.
- Debugger: PHX and PHY no longer create bogus call trees in the History window in 16-bit indexing mode.
- Debugger: Fixed disassembly of opcodes with the (d,S),Y addressing mode.
- MMU: VBXE can now properly overlay Covox.
- VBXE: Writing a '1' to the blitter start bit no longer aborts an active blit.
wstecz18/02/2013 17:43
I had access to a number of 8-bit computers in my childhood, but my most favorite was the Atari 800, a 1.79MHz 6502-based computer with color graphics and a disk drive, and which as the predecessor to the Amiga, another favorite of mine. Over a decade later, I was struck by both nostalgia and ambition and started to write a new 8-bit Atari emulator from scratch. This is the result.
At this point, I've learned a lot more about the Atari and Altirra now emulates more than I ever had or did years ago, but I still work on it periodically. It also serves as a modularity test for the VirtualDub code base, from which Altirra shares some components. If you are struck by nostalgia too or have a desire to do some Atari development, perhaps it might be useful to you, too.