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collapseos/recipes/rc2014/sdcard/glue.asm

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recipe/rc2014/sdcard: new recipe
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
Use zasm in recipes
2019-05-21 01:00:14 +10:00
.equ RAMSTART 0x8000
.equ RAMEND 0xffff
pgm: new kernel module The pgm module implements a shell hook so that when an unknown command is typed, we look into the mounted filesystem and look for a file with the same name as the command. If we find one, we load it in memory and run it.
2019-06-01 04:50:43 +10:00
.equ PGM_CODEADDR 0x9000
Use zasm in recipes
2019-05-21 01:00:14 +10:00
.equ ACIA_CTL 0x80 ; Control and status. RS off.
.equ ACIA_IO 0x81 ; Transmit. RS on.
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
recipes/rc2014/sdcard: mount filesystem!
2019-05-29 03:13:34 +10:00
jp init ; 3 bytes
; *** Jump Table ***
jp printstr
sdc: add sdcPutC Wriiiiiite!
2019-06-02 09:53:42 +10:00
jp sdcWaitResp
jp sdcCmd
jp sdcCmdR1
jp sdcCmdR7
jp sdcSendRecv
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
; interrupt hook
.fill 0x38-$
jp aciaInt
Parametrize zasm linux bin's include CFS file ... instead of embedding it in the binary itself. Additionally, add a "zasm.sh" wrapper to faciliate zasm calls on a linux machine.
2019-06-03 05:50:59 +10:00
#include "err.h"
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
#include "core.asm"
Add the concept of unit tests Will be much much easier to tests new core routines without having to re-create their context first. Also, extract parse.asm from core.asm
2019-05-17 23:33:20 +10:00
#include "parse.asm"
Use zasm in recipes
2019-05-21 01:00:14 +10:00
.equ ACIA_RAMSTART RAMSTART
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
#include "acia.asm"
Use zasm in recipes
2019-05-21 01:00:14 +10:00
.equ BLOCKDEV_RAMSTART ACIA_RAMEND
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
.equ BLOCKDEV_COUNT 2
parts/z80/sdc: add sdcInitialize Also, adjust SD card recipe. Straightforward initialization and read!
2019-05-09 06:03:54 +10:00
#include "blockdev.asm"
; List of devices
blockdev: make implementors "random access" This huge refactoring remove the Seek and Tell routine from blockdev implementation requirements and change GetC and PutC's API so that they take an address to read and write (through HL/DE) at each call. The "PTR" approach in blockdev implementation was very redundant from device to device and it made more sense to generalize. It's possible that future device aren't "random access", but we'll be able to add more device types later. Another important change in this commit is that the "blockdev handle" is now opaque. Previously, consumers of the API would happily call routines directly from one of the 4 offsets. We can't do that any more. This makes the API more solid for future improvements. This change forced me to change a lot of things in fs, but overall, things are now simpler. No more `FS_PTR`: the "device handle" now holds the active pointer. Lots, lots of changes, but it also feels a lot cleaner and solid.
2019-06-05 01:53:02 +10:00
.dw sdcGetC, sdcPutC
.dw blk2GetC, blk2PutC
parts/z80/sdc: implement blockdev's GetC
2019-05-10 00:47:57 +10:00
parts/z80/sdc: add sdcInitialize Also, adjust SD card recipe. Straightforward initialization and read!
2019-05-09 06:03:54 +10:00
Use zasm in recipes
2019-05-21 01:00:14 +10:00
.equ STDIO_RAMSTART BLOCKDEV_RAMEND
stdio: de-macro-ize
2019-05-17 22:14:19 +10:00
#include "stdio.asm"
recipes/rc2014/sdcard: mount filesystem!
2019-05-29 03:13:34 +10:00
.equ FS_RAMSTART STDIO_RAMEND
.equ FS_HANDLE_COUNT 1
#include "fs.asm"
.equ SHELL_RAMSTART FS_RAMEND
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
.equ SHELL_EXTRA_CMD_COUNT 11
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
#include "shell.asm"
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
.dw sdcInitializeCmd, sdcFlushCmd
.dw blkBselCmd, blkSeekCmd, blkLoadCmd, blkSaveCmd
recipes/rc2014/sdcard: mount filesystem!
2019-05-29 03:13:34 +10:00
.dw fsOnCmd, flsCmd, fnewCmd, fdelCmd, fopnCmd
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
blockdev: make implementors "random access" This huge refactoring remove the Seek and Tell routine from blockdev implementation requirements and change GetC and PutC's API so that they take an address to read and write (through HL/DE) at each call. The "PTR" approach in blockdev implementation was very redundant from device to device and it made more sense to generalize. It's possible that future device aren't "random access", but we'll be able to add more device types later. Another important change in this commit is that the "blockdev handle" is now opaque. Previously, consumers of the API would happily call routines directly from one of the 4 offsets. We can't do that any more. This makes the API more solid for future improvements. This change forced me to change a lot of things in fs, but overall, things are now simpler. No more `FS_PTR`: the "device handle" now holds the active pointer. Lots, lots of changes, but it also feels a lot cleaner and solid.
2019-06-05 01:53:02 +10:00
#include "blockdev_cmds.asm"
#include "fs_cmds.asm"
.equ PGM_RAMSTART SHELL_RAMEND
pgm: new kernel module The pgm module implements a shell hook so that when an unknown command is typed, we look into the mounted filesystem and look for a file with the same name as the command. If we find one, we load it in memory and run it.
2019-06-01 04:50:43 +10:00
#include "pgm.asm"
blockdev: make implementors "random access" This huge refactoring remove the Seek and Tell routine from blockdev implementation requirements and change GetC and PutC's API so that they take an address to read and write (through HL/DE) at each call. The "PTR" approach in blockdev implementation was very redundant from device to device and it made more sense to generalize. It's possible that future device aren't "random access", but we'll be able to add more device types later. Another important change in this commit is that the "blockdev handle" is now opaque. Previously, consumers of the API would happily call routines directly from one of the 4 offsets. We can't do that any more. This makes the API more solid for future improvements. This change forced me to change a lot of things in fs, but overall, things are now simpler. No more `FS_PTR`: the "device handle" now holds the active pointer. Lots, lots of changes, but it also feels a lot cleaner and solid.
2019-06-05 01:53:02 +10:00
.equ SDC_RAMSTART PGM_RAMEND
pgm: new kernel module The pgm module implements a shell hook so that when an unknown command is typed, we look into the mounted filesystem and look for a file with the same name as the command. If we find one, we load it in memory and run it.
2019-06-01 04:50:43 +10:00
.equ SDC_PORT_CSHIGH 6
.equ SDC_PORT_CSLOW 5
.equ SDC_PORT_SPI 4
recipe/rc2014/sdcard: new recipe
2019-05-08 05:26:52 +10:00
#include "sdc.asm"
zasm: use blkdev IDs as input and output This will soon allow use to seek and tell on input, which is necessary for a second pass which is necessary for forward symbol references. This require making `blkSel` a bit more flexible. Rather than having one global selected blkdev, each app can select its own, in its own memory space.
2019-05-11 08:20:43 +10:00
init:
di
; setup stack
ld hl, RAMEND
ld sp, hl
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
im 1
zasm: use blkdev IDs as input and output This will soon allow use to seek and tell on input, which is necessary for a second pass which is necessary for forward symbol references. This require making `blkSel` a bit more flexible. Rather than having one global selected blkdev, each app can select its own, in its own memory space.
2019-05-11 08:20:43 +10:00
call aciaInit
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
ld hl, aciaGetC
ld de, aciaPutC
stdio: de-macro-ize
2019-05-17 22:14:19 +10:00
call stdioInit
recipes/rc2014: add missing calls to fsInit Also, tighten RAM addresses. They were unecessarily loose.
2019-06-18 03:44:36 +10:00
call fsInit
zasm: use blkdev IDs as input and output This will soon allow use to seek and tell on input, which is necessary for a second pass which is necessary for forward symbol references. This require making `blkSel` a bit more flexible. Rather than having one global selected blkdev, each app can select its own, in its own memory space.
2019-05-11 08:20:43 +10:00
call shellInit
pgm: new kernel module The pgm module implements a shell hook so that when an unknown command is typed, we look into the mounted filesystem and look for a file with the same name as the command. If we find one, we load it in memory and run it.
2019-06-01 04:50:43 +10:00
ld hl, pgmShellHook
ld (SHELL_CMDHOOK), hl
zasm: use blkdev IDs as input and output This will soon allow use to seek and tell on input, which is necessary for a second pass which is necessary for forward symbol references. This require making `blkSel` a bit more flexible. Rather than having one global selected blkdev, each app can select its own, in its own memory space.
2019-05-11 08:20:43 +10:00
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
xor a
blockdev: make selection structure opaque I'm about to change that structure and I don't want fs to be messed up by this. I'm proceeding step by step...
2019-06-04 23:56:36 +10:00
ld de, BLOCKDEV_SEL
recipes/rc2014/sdcard: add instructions to write to SD card
2019-06-03 01:53:36 +10:00
call blkSel
zasm: use blkdev IDs as input and output This will soon allow use to seek and tell on input, which is necessary for a second pass which is necessary for forward symbol references. This require making `blkSel` a bit more flexible. Rather than having one global selected blkdev, each app can select its own, in its own memory space.
2019-05-11 08:20:43 +10:00
ei
jp shellLoop
recipes/rc2014/sdcard: mount filesystem!
2019-05-29 03:13:34 +10:00
; *** blkdev 2: file handle 0 ***
blk2GetC:
fs: adjust to DE->IX change in recipe/emul glue code
2019-06-03 00:18:03 +10:00
ld ix, FS_HANDLES
recipes/rc2014/sdcard: mount filesystem!
2019-05-29 03:13:34 +10:00
jp fsGetC
blk2PutC:
fs: adjust to DE->IX change in recipe/emul glue code
2019-06-03 00:18:03 +10:00
ld ix, FS_HANDLES
recipes/rc2014/sdcard: mount filesystem!
2019-05-29 03:13:34 +10:00
jp fsPutC
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