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collapseos/recipes/rc2014/zasm/glue.asm

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recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +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
.equ RAMSTART 0x8000
sdc: support 24-bit addressing Needed if we want to compile the kernel and zasm from within a SD card. I didn't go straight for 32-bit because it was significantly more complex and 24-bit give us 16M. Enough to go on for a while...
2019-06-16 03:41:20 +10:00
; kernel RAM usage, because of SDC, is a bit high and bring us almost to 0x9e00
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
; We allocate at least 0x100 bytes for RAM, which is why we have this threshold.
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
; for the stack.
sdc: support 24-bit addressing Needed if we want to compile the kernel and zasm from within a SD card. I didn't go straight for 32-bit because it was significantly more complex and 24-bit give us 16M. Enough to go on for a while...
2019-06-16 03:41:20 +10:00
.equ RAMEND 0xa000
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
.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
sdc: add second buffer
2019-06-07 12:16:28 +10:00
jp blkSet
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
jp fsFindFN
jp fsOpen
jp fsGetC
sdc: add second buffer
2019-06-07 12:16:28 +10:00
jp cpHLDE ; approaching 0x38...
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
; interrupt hook
.fill 0x38-$
jp aciaInt
; *** Jump Table (cont.) ***
jp parseArgs
jp printstr
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
jp _blkGetC
jp _blkPutC
jp _blkSeek
jp _blkTell
Add apps/sdct A new app to stress test the SD card driver. Also, accompanying this commit, changes solidifying the SD card driver so that stress tests actually pass :)
2019-06-11 05:13:46 +10:00
jp printHexPair
jp sdcGetC
jp sdcPutC
sdc: support 24-bit addressing Needed if we want to compile the kernel and zasm from within a SD card. I didn't go straight for 32-bit because it was significantly more complex and 24-bit give us 16M. Enough to go on for a while...
2019-06-16 03:41:20 +10:00
jp blkGetC
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
#include "err.h"
#include "core.asm"
#include "parse.asm"
sdc: support 24-bit addressing Needed if we want to compile the kernel and zasm from within a SD card. I didn't go straight for 32-bit because it was significantly more complex and 24-bit give us 16M. Enough to go on for a while...
2019-06-16 03:41:20 +10:00
.equ ACIA_RAMSTART RAMSTART
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
#include "acia.asm"
.equ BLOCKDEV_RAMSTART ACIA_RAMEND
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
.equ BLOCKDEV_COUNT 4
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +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
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
.dw blk1GetC, blk1PutC
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 blk2GetC, blk2PutC
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
.dw mmapGetC, mmapPutC
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
.equ MMAP_START 0xe000
#include "mmap.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 STDIO_RAMSTART BLOCKDEV_RAMEND
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
#include "stdio.asm"
.equ FS_RAMSTART STDIO_RAMEND
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
.equ FS_HANDLE_COUNT 2
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
#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
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 "fs_cmds.asm"
#include "blockdev_cmds.asm"
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
.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 shellInit
ld hl, pgmShellHook
ld (SHELL_CMDHOOK), hl
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
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
call blkSel
ei
jp shellLoop
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
; *** blkdev 1: file handle 0 ***
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
blk1GetC:
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
ld ix, FS_HANDLES
jp fsGetC
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
blk1PutC:
recipe/rc2014/zasm: new recipe
2019-06-04 03:34:16 +10:00
ld ix, FS_HANDLES
jp fsPutC
recipes/rc2014/zasm: zasm can now assemble *and* write to file
2019-06-08 09:53:50 +10:00
; *** 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
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