mirror of https://github.com/hsoft/collapseos.git
recipes/rc2014/eeprom: remove old stuff
This commit is contained in:
Virgil Dupras
parent
82044454d5
commit
287213fc68
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@ -1,11 +0,0 @@
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TARGET = os.bin
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BASEDIR = ../../..
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ZASM = $(BASEDIR)/emul/zasm/zasm
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KERNEL = $(BASEDIR)/kernel
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APPS = $(BASEDIR)/apps
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.PHONY: all
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all: $(TARGET)
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$(TARGET): glue.asm
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$(ZASM) $(KERNEL) $(APPS) < glue.asm > $@
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@ -1,87 +0,0 @@
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; classic RC2014 setup (8K ROM + 32K RAM) and a stock Serial I/O module
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; The RAM module is selected on A15, so it has the range 0x8000-0xffff
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.equ RAMSTART 0x8000
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.equ RAMEND 0xffff
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.equ ACIA_CTL 0x80 ; Control and status. RS off.
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.equ ACIA_IO 0x81 ; Transmit. RS on.
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jp init
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; interrupt hook
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.fill 0x38-$
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jp aciaInt
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.inc "err.h"
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.inc "ascii.h"
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.inc "blkdev.h"
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.inc "core.asm"
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.inc "str.asm"
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.equ ACIA_RAMSTART RAMSTART
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.inc "acia.asm"
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.equ MMAP_START 0xd000
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.inc "mmap.asm"
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.equ BLOCKDEV_RAMSTART ACIA_RAMEND
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.equ BLOCKDEV_COUNT 1
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.inc "blockdev.asm"
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; List of devices
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.dw mmapGetB, mmapPutB
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.equ STDIO_RAMSTART BLOCKDEV_RAMEND
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.equ STDIO_GETC aciaGetC
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.equ STDIO_PUTC aciaPutC
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.inc "stdio.asm"
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.equ AT28W_RAMSTART STDIO_RAMEND
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.inc "at28w/main.asm"
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; *** BASIC ***
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; RAM space used in different routines for short term processing.
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.equ SCRATCHPAD_SIZE STDIO_BUFSIZE
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.equ SCRATCHPAD AT28W_RAMEND
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.inc "lib/util.asm"
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.inc "lib/ari.asm"
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.inc "lib/parse.asm"
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.inc "lib/fmt.asm"
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.equ EXPR_PARSE parseLiteralOrVar
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.inc "lib/expr.asm"
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.inc "basic/util.asm"
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.inc "basic/parse.asm"
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.inc "basic/tok.asm"
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.equ VAR_RAMSTART SCRATCHPAD+SCRATCHPAD_SIZE
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.inc "basic/var.asm"
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.equ BUF_RAMSTART VAR_RAMEND
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.inc "basic/buf.asm"
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.inc "basic/blk.asm"
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.equ BAS_RAMSTART BUF_RAMEND
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.inc "basic/main.asm"
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init:
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di
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; setup stack
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ld sp, RAMEND
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im 1
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call aciaInit
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xor a
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ld de, BLOCKDEV_SEL
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call blkSel
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call basInit
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ld hl, basFindCmdExtra
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ld (BAS_FINDHOOK), hl
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ei
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jp basStart
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basFindCmdExtra:
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ld hl, basBLKCmds
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call basFindCmd
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ret z
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ld hl, .mycmds
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jp basFindCmd
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.mycmds:
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.db "at28w", 0
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.dw at28wMain
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.db 0xff
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@ -1,43 +0,0 @@
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; If you find youself needing to write to an EEPROM through a shell that isn't
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; built for this, compile this dependency-less code (change memory offsets as
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; needed) and run it in a USR-like fashion.
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ld bc, 0x1000 ; bytecount to write
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ld de, 0xd000 ; source data
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ld hl, 0x2000 ; dest EEPROM memory mapping
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loop:
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ld a, (de)
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ld (hl), a
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push de ; --> lvl 1
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push bc ; --> lvl 2
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ld bc, 0x2000 ; Should be plenty enough to go > 10ms
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ld e, a ; save expected data for verification
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wait:
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; as long as writing operation is running, IO/6 will toggle at each
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; read attempt and IO/7 will be the opposite of what was written. Simply
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; wait until the read operation yields the same value as what we've
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; written
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ld a, (hl)
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cp e
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jr z, waitend
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dec bc
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ld a, b
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or c
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jr nz, wait
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; mismatch
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pop bc ; <-- lvl 2
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pop de ; <-- lvl 1
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ld a, 1 ; nonzero
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or a ; unset Z
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ret
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waitend:
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pop bc ; <-- lvl 2
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pop de ; <-- lvl 1
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inc hl
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inc de
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dec bc
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ld a, b
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or c
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jr nz, loop
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ret ; Z already set
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