VOGONS


8086 (amstrad)

Topic actions

First post, by kelp7

User metadata
Rank Newbie
Rank
Newbie

Hi,

I've been trying out Dosbox and it looks very good, but a lot of programs that I wrote in the late 80s and early 90s for my Amstrad PC1512 (a 7mhz 8086 ibm-clone) run too fast on Dosbox. I know that Dosbox emulates various CPUs but is there any way I can get it to 'dumb down' to an 8086 7mhz pc? or does anyone know of either an amstrad pc emulator or 8086 emulator?

thanks
ben

Reply 1 of 6, by Qbix

User metadata
Rank DOSBox Author
Rank
DOSBox Author

play with the cycles variable (ctrl f11 and ctrl f12)

Water flows down the stream
How to ask questions the smart way!

Reply 2 of 6, by kelp7

User metadata
Rank Newbie
Rank
Newbie

thanks for the reply, i'll give that a go and see what happens...

Reply 3 of 6, by abyss

User metadata
Rank Member
Rank
Member

For those old games make sure your in normal core and cycles=500 and cyclesup should be 100 and know if the games still run to fast use ctrl f11 and if running too slow ctrl f12. I never knew amstrad made an IBM clone.

Reply 4 of 6, by eL_PuSHeR

User metadata
Rank l33t++
Rank
l33t++

In fact, AMSTRAD made several PC clones when IBM was too expensive to buy.

PC1512 - CGA or Monochrome. 512KB. 5¼ floppies.

PC1640 - EGA. 640KB. 5¼ floppies (360KB).

PC2086 - VGA (PVGA1A). 3½ floppies (720KB). I had one of these.

And more models I don't recall. Some with 286 and 386SX.

Intel i7 5960X
Gigabye GA-X99-Gaming 5
8 GB DDR4 (2100)
8 GB GeForce GTX 1070 G1 Gaming (Gigabyte)

Reply 5 of 6, by dh4rm4

User metadata
Rank Oldbie
Rank
Oldbie

I had a PC2086 for a short while and my custom made XT clone with NEC V20 was faster, even though the 2086 also had the same 8mhz CPU.

Reply 6 of 6, by kelp7

User metadata
Rank Newbie
Rank
Newbie

thanks for all the help. I took the first replier's advice and simply dropped the cycles down to somewhere between 500 to 700.... everything seems to run just fine now, like it used to... 😀