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recipes/rc2014/sdcard: use BASIC shell
This commit is contained in:
Virgil Dupras
parent
7907687abf
commit
880775ae69
@ -137,4 +137,6 @@ basFSCmds:
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.dw basFNEW
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.db "fdel", 0
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.dw basFDEL
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.db "fson", 0
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.dw fsOn
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.db 0xff ; end of table
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14
apps/basic/sdc.asm
Normal file
14
apps/basic/sdc.asm
Normal file
@ -0,0 +1,14 @@
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; SDC-related basic commands
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basSDCI:
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jp sdcInitializeCmd
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basSDCF:
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jp sdcFlushCmd
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basSDCCmds:
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.db "sdci", 0
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.dw basSDCI
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.db "sdcf", 0
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.dw basSDCF
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.db 0xff ; end of table
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@ -101,8 +101,7 @@ fsInit:
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xor a
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ld hl, FS_BLK
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ld b, FS_RAMEND-FS_BLK
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call fill
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ret
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jp fill
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; *** Navigation ***
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@ -286,7 +285,7 @@ fsFindFN:
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call fsNext
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jr z, .loop
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; End of the chain, not found
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call unsetZ
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; Z already unset
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.end:
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pop de
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ret
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@ -311,7 +310,7 @@ fsIsValid:
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; Returns whether current block is deleted in Z flag.
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fsIsDeleted:
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ld a, (FS_META+FS_META_FNAME_OFFSET)
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cp 0 ; Z flag is our answer
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or a ; Z flag is our answer
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ret
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; *** blkdev methods ***
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@ -508,12 +507,9 @@ fsOn:
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jr .end
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.error:
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; couldn't mount. Let's reset our variables.
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xor a
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ld b, FS_META-FS_BLK ; reset routine pointers and FS ptrs
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ld hl, FS_BLK
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call fill
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call fsInit
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ld a, FS_ERR_NO_FS
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or a ; unset Z
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.end:
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pop bc
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pop de
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@ -524,18 +520,16 @@ fsOn:
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fsIsOn:
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; check whether (FS_BLK) is zero
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push hl
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push de
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ld hl, (FS_BLK)
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ld de, 0
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call cpHLDE
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ld a, h
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or l
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jr nz, .mounted
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; if equal, it means our FS is not mounted
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call unsetZ
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; not mounted, unset Z
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inc a
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jr .end
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.mounted:
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cp a ; ensure Z
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.end:
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pop de
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pop hl
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ret
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@ -545,8 +539,6 @@ fsIsOn:
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; There are no error condition happening midway. If you get an error, then (IY)
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; was never called.
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fsIter:
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call fsIsOn
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ret nz
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call fsBegin
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ret nz
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.loop:
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@ -621,10 +621,7 @@ sdcCRC:
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pop af
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ret
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; *** shell cmds ***
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sdcInitializeCmd:
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.db "sdci", 0, 0, 0
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call sdcInitialize
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ret nz
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call .setBlkSize
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@ -678,7 +675,6 @@ sdcInitializeCmd:
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; Flush the current SDC buffer if dirty
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sdcFlushCmd:
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.db "sdcf", 0, 0, 0
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ld hl, SDC_BUFSEC1
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ld (SDC_BUFPTR), hl
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call sdcWriteBlk
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@ -724,14 +720,11 @@ _sdcPlaceBuf:
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sdcGetB:
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push hl
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call _sdcPlaceBuf
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jr nz, .error
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jr nz, .end ; NZ already set
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; This is it!
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ld a, (hl)
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cp a ; ensure Z
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jr .end
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.error:
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call unsetZ
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.end:
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pop hl
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ret
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@ -2,9 +2,9 @@
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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 PGM_CODEADDR 0x9000
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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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.equ USER_CODE 0xa000
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jp init ; 3 bytes
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@ -45,25 +45,32 @@ jp aciaInt
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.equ FS_HANDLE_COUNT 1
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.inc "fs.asm"
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; *** Shell ***
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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 0x20
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.equ SCRATCHPAD FS_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/args.asm"
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.inc "lib/stdio.asm"
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.equ SHELL_RAMSTART FS_RAMEND
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.equ SHELL_EXTRA_CMD_COUNT 11
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.inc "shell/main.asm"
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.dw sdcInitializeCmd, sdcFlushCmd
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.dw blkBselCmd, blkSeekCmd, blkLoadCmd, blkSaveCmd
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.dw fsOnCmd, flsCmd, fnewCmd, fdelCmd, fopnCmd
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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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.inc "basic/sdc.asm"
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.equ BFS_RAMSTART BUF_RAMEND
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.inc "basic/fs.asm"
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.equ BAS_RAMSTART BFS_RAMEND
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.inc "basic/main.asm"
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.inc "shell/blkdev.asm"
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.inc "shell/fs.asm"
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.equ PGM_RAMSTART SHELL_RAMEND
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.inc "shell/pgm.asm"
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.equ SDC_RAMSTART PGM_RAMEND
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.equ SDC_RAMSTART BAS_RAMEND
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.equ SDC_PORT_CSHIGH 6
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.equ SDC_PORT_CSLOW 5
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.equ SDC_PORT_SPI 4
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@ -71,22 +78,30 @@ jp aciaInt
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init:
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di
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; setup stack
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ld hl, RAMEND
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ld sp, hl
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ld sp, RAMEND
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im 1
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call aciaInit
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call fsInit
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call shellInit
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ld hl, pgmShellHook
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ld (SHELL_CMDHOOK), hl
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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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xor a
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ld de, BLOCKDEV_SEL
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call blkSel
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ei
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jp shellLoop
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jp basStart
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basFindCmdExtra:
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ld hl, basFSCmds
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call basFindCmd
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ret z
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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, basSDCCmds
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jp basFindCmd
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; *** blkdev 2: file handle 0 ***
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