;===============================================================================
; 'S' - S19 Record Loader
;-------------------------------------------------------------------------------
cmp #'S'
if eq
jsr NextChar
cmp #'1' ; Data record?
if eq
jsr GetByte ; Extract length
bcs .S19Fail
sta ADDR_E+0
jsr GetWord ; Extract address
bcs .S19Fail
jsr SetStartAddr
dec ADDR_E+0 ; Reduce count
dec ADDR_E+0
dec ADDR_E+0
ldy #0
sty ADDR_E+1
repeat
jsr GetByte ; Extract data byte
bcs .S19Fail
ldy ADDR_E+1 ; And save
lda TEMP+0
sta (ADDR_S),y
inc ADDR_E+1
dec ADDR_E+0 ; Until line processed
until eq
else
cmp #'9'
if eq
jsr GetByte ; Extract length
bcs .S19Fail
jsr GetWord ; Extract start address
bcs .S19Fail
lda TEMP+0 ; Copy to PC
sta PC_REG+0
lda TEMP+1
sta PC_REG+1
else
.S19Fail: jmp Error
endif
endif
jmp NewCommand
endif
Quote:
Motorola S-record is a file format, created by Motorola in the mid-1970s, that conveys binary information as hex values in ASCII text form. This file format may also be known as SRECORD, SREC, S19, S28, S37. It is commonly used for programming flash memory in microcontrollers, EPROMs, EEPROMs, and other types of programmable logic devices. In a typical application, a compiler or assembler converts a program's source code (such as C or assembly language) to machine code and outputs it into a HEX file. The HEX file is then imported by a programmer to "burn" the machine code into non-volatile memory, or is transferred to the target system for loading and execution.
I'm late to this discussion - only just noticed it in the forum.
I use this board and know a little about it.
No, there is no provision to deal with interrupts if you switch banks away from the default. You could copy the WDC code to the other three banks so you can swap to whichever bank you want and it wouldn't notice.
Its a good board, let down seriously by the software support. I gave up with WDC's software, it is antiquated and doesn't play nice on newer versions of Windows - if I remember the problem was authority - running it with elevated privileges helped I think but as I said I gave up with it.
I use the NoICE debugger - it costs $79.95 but it has been the most useful piece of software I have bought in a VERY long time. I use it via the FTDI USB port which leaves the second onboard 6522 completely free.
Andrew Jacobs posted code to read and write FTDI USB (as serial COM) ports in his "w65c816sxb-hacker" Github project. I have used this code to read/write via the USB socket on the board. Monitor code is supplied with the NoICE debugger but you have to add character I/O routines yourself. Andrew's code "just worked". If you want to develop your own routines his code will give you a good start.
One thing - The WDC website says "W65C02S MPU running at 8MHz.". No it doesn't. At least mine doesn't. If you look at the board there are two canned oscillators - both 1.8432 mHz - one for the 6551 and the other provides phi2. Is yours the same?
As it will take some time for me to design and build my 6502 based computer and I wanted to experiment I also bought a 65C02SXB.
I expected that it had the same software as the 65C265SXB but it does not at least I could not use the EasySXB software I used for the 65C265SXB that I have laying around as well.
I found and I downloaded Andrew Jacobs w65c02sxb-monitor on my Macbook and It works like a charm. I learned be browsing trough this forum that he has past away that's very sad. Even though he is no longer with us, I wanted to thank him for this software. It is very useful.
I found and I downloaded Andrew Jacobs w65c02sxb-monitor on my Macbook and It works like a charm. I learned be browsing trough this forum that he has past away that's very sad. Even though he is no longer with us, I wanted to thank him for this software. It is very useful.
It was quite a shock to us when we learned of Andrew’s untimely death. He was a long time member and contributor to 6502.org and, among other things, was the author of a well-designed macroassembler for the 6502 family. I believe his website has been preserved in its entirety, although I'm not certain about the details.
