2019-05-08 05:26:52 +10:00
|
|
|
; classic RC2014 setup (8K ROM + 32K RAM) and a stock Serial I/O module
|
|
|
|
|
; The RAM module is selected on A15, so it has the range 0x8000-0xffff
|
|
|
|
|
RAMSTART .equ 0x8000
|
|
|
|
|
RAMEND .equ 0xffff
|
|
|
|
|
ACIA_CTL .equ 0x80 ; Control and status. RS off.
|
|
|
|
|
ACIA_IO .equ 0x81 ; Transmit. RS on.
|
|
|
|
|
|
|
|
|
|
jr init
|
|
|
|
|
|
|
|
|
|
; *** JUMP TABLE ***
|
|
|
|
|
; Why not use this unused space between 0x02 and 0x28 for a jump table?
|
|
|
|
|
jp printstr
|
|
|
|
|
jp printHex
|
2019-05-09 06:03:54 +10:00
|
|
|
jp sdcInitialize
|
2019-05-08 05:26:52 +10:00
|
|
|
jp sdcSendRecv
|
|
|
|
|
jp sdcWaitResp
|
|
|
|
|
jp sdcCmd
|
|
|
|
|
jp sdcCmdR1
|
|
|
|
|
jp sdcCmdR7
|
|
|
|
|
|
|
|
|
|
; interrupt hook
|
|
|
|
|
.fill 0x38-$
|
|
|
|
|
jp aciaInt
|
|
|
|
|
|
|
|
|
|
init:
|
|
|
|
|
di
|
|
|
|
|
; setup stack
|
|
|
|
|
ld hl, RAMEND
|
|
|
|
|
ld sp, hl
|
|
|
|
|
im 1
|
|
|
|
|
call aciaInit
|
2019-05-09 06:03:54 +10:00
|
|
|
xor a
|
|
|
|
|
call blkSel
|
2019-05-08 05:26:52 +10:00
|
|
|
call shellInit
|
|
|
|
|
|
|
|
|
|
; TODO - block device creation
|
|
|
|
|
|
|
|
|
|
ei
|
|
|
|
|
jp shellLoop
|
|
|
|
|
|
|
|
|
|
#include "core.asm"
|
|
|
|
|
ACIA_RAMSTART .equ RAMSTART
|
|
|
|
|
#include "acia.asm"
|
|
|
|
|
.define STDIO_GETC call aciaGetC
|
|
|
|
|
.define STDIO_PUTC call aciaPutC
|
|
|
|
|
STDIO_RAMSTART .equ ACIA_RAMEND
|
|
|
|
|
#include "stdio.asm"
|
2019-05-09 06:03:54 +10:00
|
|
|
BLOCKDEV_RAMSTART .equ STDIO_RAMEND
|
|
|
|
|
BLOCKDEV_COUNT .equ 1
|
|
|
|
|
#include "blockdev.asm"
|
|
|
|
|
; List of devices
|
|
|
|
|
.dw aciaGetC, aciaPutC, 0, 0
|
|
|
|
|
|
|
|
|
|
SHELL_RAMSTART .equ BLOCKDEV_RAMEND
|
|
|
|
|
.define SHELL_IO_GETC call blkGetCW
|
|
|
|
|
.define SHELL_IO_PUTC call blkPutC
|
2019-05-08 05:26:52 +10:00
|
|
|
SHELL_EXTRA_CMD_COUNT .equ 0
|
|
|
|
|
#include "shell.asm"
|
|
|
|
|
|
|
|
|
|
.equ SDC_PORT_CSHIGH 6
|
|
|
|
|
.equ SDC_PORT_CSLOW 5
|
|
|
|
|
.equ SDC_PORT_SPI 4
|
|
|
|
|
#include "sdc.asm"
|
