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collapseos/recipes/rc2014/zasm/glue.asm
Virgil Dupras 3e437747c2 recipes/rc2014: add missing calls to fsInit
Also, tighten RAM addresses. They were unecessarily loose.
2019-06-17 13:46:33 -04:00

136 lines
2.3 KiB
NASM

; 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
.equ RAMSTART 0x8000
; kernel RAM usage, because of SDC, is a bit high and bring us almost to 0x8500
; We allocate at least 0x200 bytes for the stack, which is why we have this
; threshold.
.equ RAMEND 0x8700
.equ PGM_CODEADDR RAMEND
.equ ACIA_CTL 0x80 ; Control and status. RS off.
.equ ACIA_IO 0x81 ; Transmit. RS on.
jp init ; 3 bytes
; *** Jump Table ***
jp strncmp
jp addDE
jp addHL
jp upcase
jp unsetZ
jp intoDE
jp intoHL
jp writeHLinDE
jp findchar
jp parseHex
jp parseHexPair
jp blkSel
jp blkSet
jp fsFindFN
jp fsOpen
jp fsGetC
jp cpHLDE ; approaching 0x38...
; interrupt hook
.fill 0x38-$
jp aciaInt
; *** Jump Table (cont.) ***
jp parseArgs
jp printstr
jp _blkGetC
jp _blkPutC
jp _blkSeek
jp _blkTell
jp printHexPair
jp sdcGetC
jp sdcPutC
jp blkGetC
#include "err.h"
#include "core.asm"
#include "parse.asm"
.equ ACIA_RAMSTART RAMSTART
#include "acia.asm"
.equ BLOCKDEV_RAMSTART ACIA_RAMEND
.equ BLOCKDEV_COUNT 4
#include "blockdev.asm"
; List of devices
.dw sdcGetC, sdcPutC
.dw blk1GetC, blk1PutC
.dw blk2GetC, blk2PutC
.dw mmapGetC, mmapPutC
.equ MMAP_START 0xe000
#include "mmap.asm"
.equ STDIO_RAMSTART BLOCKDEV_RAMEND
#include "stdio.asm"
.equ FS_RAMSTART STDIO_RAMEND
.equ FS_HANDLE_COUNT 2
#include "fs.asm"
.equ SHELL_RAMSTART FS_RAMEND
.equ SHELL_EXTRA_CMD_COUNT 11
#include "shell.asm"
.dw sdcInitializeCmd, sdcFlushCmd
.dw blkBselCmd, blkSeekCmd, blkLoadCmd, blkSaveCmd
.dw fsOnCmd, flsCmd, fnewCmd, fdelCmd, fopnCmd
#include "fs_cmds.asm"
#include "blockdev_cmds.asm"
.equ PGM_RAMSTART SHELL_RAMEND
#include "pgm.asm"
.equ SDC_RAMSTART PGM_RAMEND
.equ SDC_PORT_CSHIGH 6
.equ SDC_PORT_CSLOW 5
.equ SDC_PORT_SPI 4
#include "sdc.asm"
.out SDC_RAMEND
init:
di
; setup stack
ld hl, RAMEND
ld sp, hl
im 1
call aciaInit
ld hl, aciaGetC
ld de, aciaPutC
call stdioInit
call fsInit
call shellInit
ld hl, pgmShellHook
ld (SHELL_CMDHOOK), hl
xor a
ld de, BLOCKDEV_SEL
call blkSel
ei
jp shellLoop
; *** blkdev 1: file handle 0 ***
blk1GetC:
ld ix, FS_HANDLES
jp fsGetC
blk1PutC:
ld ix, FS_HANDLES
jp fsPutC
; *** blkdev 2: file handle 1 ***
blk2GetC:
ld ix, FS_HANDLES+FS_HANDLE_SIZE
jp fsGetC
blk2PutC:
ld ix, FS_HANDLES+FS_HANDLE_SIZE
jp fsPutC