izaya
/
collapseos
mirror of https://github.com/hsoft/collapseos.git
1
1
Fork 0
Code Issues 0 Releases 0 Wiki Activity
Mirror of CollapseOS
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
31 Commits
4 Branches
13MB
Tree: ff99062d5b
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'ff99062d5b'
${ noResults }
collapseos/recipes/rc2014/glue.asm

34 lines
682B
Raw Blame History 

  1. ; classic RC2014 setup (8K ROM + 32K RAM) and a stock Serial I/O module

  2. ; The RAM module is selected on A15, so it has the range 0x8000-0xffff

  3. RAMSTART	.equ	0x8000

  4. RAMEND		.equ	0xffff

  5. ACIA_CTL	.equ	0x80	; Control and status. RS off.

  6. ACIA_IO		.equ	0x81	; Transmit. RS on.

  7. 

  8. jr	init

  9. 

  10. ; interrupt hook

  11. .fill	0x38-$

  12. jp	aciaInt

  13. 

  14. init:

  15. 	di

  16. 	; setup stack

  17. 	ld	hl, RAMEND

  18. 	ld	sp, hl

  19. 	im 1

  20. 	call	aciaInit

  21. 	call	shellInit

  22. 	ei

  23. 	jp	shellLoop

  24. 

  25. #include "core.asm"

  26. ACIA_RAMSTART	.equ	RAMSTART

  27. #include "acia.asm"

  28. SHELL_RAMSTART	.equ	ACIA_RAMEND

  29. .define SHELL_GETC	call aciaGetC

  30. .define SHELL_PUTC	call aciaPutC

  31. .define SHELL_IO_GETC	call aciaGetC

  32. SHELL_EXTRA_CMD_COUNT .equ 0

  33. #include "shell.asm"