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Some corrections.

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Bobbi Webber-Manners 2019-10-14 17:46:46 -04:00
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@ -101,8 +101,8 @@ There are two parts to the BDOS emulation:
- `softcard80.asm` - This is the Z80 code to handle BDOS calls and send them - `softcard80.asm` - This is the Z80 code to handle BDOS calls and send them
to the 6502 to be processed. Written in Z80 assembler. I am currently to the 6502 to be processed. Written in Z80 assembler. I am currently
assembling this using `Z80asm` (but will probably switch to `Z80as` when it assembling this using `Z80asm` under Linux (it got too large to assemble
grows too large. Loads at 05000H in Z80 space, which is $6000 in 6502-land. with `Z80asm` under ProDOS on the Apple II.
- `softcard65.asm` - This is the 6502 back end code. Written in Merlin8 v2.58. - `softcard65.asm` - This is the 6502 back end code. Written in Merlin8 v2.58.
Loads at $0900 in 6502 space. Loads at $0900 in 6502 space.
@ -194,7 +194,7 @@ ln hex2bin.o -lc
- `cd /zapple2` - `cd /zapple2`
- `z80asm softcard80.asm` - `z80asm softcard80.asm`
*Update* The code has grown too large to build natively on the Apple II. I *Update:* The code has grown too large to build natively on the Apple II. I
have been using `z80asm` under Linux instead. have been using `z80asm` under Linux instead.
# How to Run The Code # How to Run The Code
@ -222,8 +222,8 @@ A little explanation is in order:
address space, which is 0000H for the Z80. address space, which is 0000H for the Z80.
- The second line loads the BASIC5 image at $1100 (0100H for the Z80). - The second line loads the BASIC5 image at $1100 (0100H for the Z80).
- Finally we just run the 6502 code in `SOFTCARD65` to bootstrap the process. - Finally we just run the 6502 code in `SOFTCARD65` to bootstrap the process.
This loads higher in memory (but below 32K at the moment because of a This loads at $0900. The start address is encoded in the binary, so we
Z80asm bug where it is treating the address as a signed 16 bit integer). don't need to specify it on loading/running the code.
The other EXEC file `RUNTESTSTUB` is the same, but omits the second step. The other EXEC file `RUNTESTSTUB` is the same, but omits the second step.
Instead of running BASIC, it runs some internal test code that is part of Instead of running BASIC, it runs some internal test code that is part of