Zeddy emulator for ZX Spectrum

Emulator and emulator development specific topics
dr beep
Posts: 1045
Joined: Thu Jun 16, 2011 7:35 am
Location: Boxmeer

Re: Zeddy emulator for ZX Spectrum

Post by dr beep » Fri Nov 25, 2016 9:57 pm

It made me think about the ZX81-emulator.

I already made a new version that never was released and will never since the code is slower than the original
due to contented memory.

However if I alter the location of the emulator and set supporting routines in contented memory I will be able to win speed in
1) the emulation, faster selection due to mentioned routine which was NOT implemented and better access to relocated memory.
2) faster translated routines due to better access.

3) perhaps a quicker displayroutine due to new coding technics.

All together I think I can at 10% in speed.

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kokkiklhs
Posts: 44
Joined: Sat Jan 10, 2015 11:09 am

Re: Zeddy emulator for ZX Spectrum

Post by kokkiklhs » Mon Nov 28, 2016 10:30 pm

dr beep wrote:It made me think about the ZX81-emulator.

I already made a new version that never was released and will never since the code is slower than the original
due to contented memory.

However if I alter the location of the emulator and set supporting routines in contented memory I will be able to win speed in
1) the emulation, faster selection due to mentioned routine which was NOT implemented and better access to relocated memory.
2) faster translated routines due to better access.

3) perhaps a quicker displayroutine due to new coding technics.

All together I think I can at 10% in speed.
My speccy is eager to test it!!
8-)
Please let us know when you find some time to finish it with your magic coding skills!!

dr beep
Posts: 1045
Joined: Thu Jun 16, 2011 7:35 am
Location: Boxmeer

Re: Zeddy emulator for ZX Spectrum

Post by dr beep » Tue Nov 29, 2016 5:26 pm

kokkiklhs wrote:
dr beep wrote:It made me think about the ZX81-emulator.

I already made a new version that never was released and will never since the code is slower than the original
due to contented memory.

However if I alter the location of the emulator and set supporting routines in contented memory I will be able to win speed in
1) the emulation, faster selection due to mentioned routine which was NOT implemented and better access to relocated memory.
2) faster translated routines due to better access.

3) perhaps a quicker displayroutine due to new coding technics.

All together I think I can at 10% in speed.
My speccy is eager to test it!!
8-)
Please let us know when you find some time to finish it with your magic coding skills!!
First finish of game 29 in 1k hires.

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