dongfeng
Veteran Member
how are the chips broken? Physically?
Only one of them is broken. I have no idea how it happened, but the top layer of the chip has broken away. Like removing the top layer of a sandwich.
how are the chips broken? Physically?
The problem with using debug is that you really can't save a chunk of data 64kbytes in size (65,536 IIRC) to a file. It would always be 1 byte short (the means of specifying the size of a file to be saved is stored in a register - and since the largest numeric a 16-bit register can store is FFFFh, or 65,535, you turn up short!
Don't know, but it goes back to at least DOS 3.1Which versions? I'd be embarrassed to find out I'd been missing something the whole time.
Yep. Been VB programming for many years. About six or so months ago, someone watching me code brought to my attention a time saver that apparently is widely known to VB programmers. Embarrassing!Ah well, live and learn.
Attached is a little program I knocked up to do the split of the 64K file (into odd and even portions).modem7 said:At this point you have FINAL.BIN which needs to be specially split as I stated in my earlier post.
Attached is a little program I knocked up to do the split of the 64K file (into odd and even portions).
When running it, browse to the 64K file then click on the 'odd/even' button. Two files (32K each in this case) will be created - one containing the odd address bytes, the other containing the even address bytes.
Get Nige to burn each 32K file to a suitably speed rated 27256 EPROM.