Mercurial > hg > Members > kono > nitros9-code
changeset 3148:ffa4b0273cc7
3rdparty/utils/fpgarom: Utilities for CoCo3FPGA booting
Includes Brett Gordon's CocoFPGA Boot ROM.
author | Bill Pierce <merlinious999@gmail.com> |
---|---|
date | Sat, 04 Feb 2017 18:54:49 +0100 |
parents | 067978160b7e |
children | afd0f7d9b514 |
files | 3rdparty/utils/fpgarom/AUTOEXEC.BAS 3rdparty/utils/fpgarom/LICENSE 3rdparty/utils/fpgarom/README.md 3rdparty/utils/fpgarom/boot.asm 3rdparty/utils/fpgarom/makefile 3rdparty/utils/fpgarom/notes.txt 3rdparty/utils/fpgarom/rom.asm 3rdparty/utils/fpgarom/sd.asm 3rdparty/utils/fpgarom/sd.def 3rdparty/utils/fpgarom/test.asm 3rdparty/utils/fpgarom/test.lnk 3rdparty/utils/makefile |
diffstat | 12 files changed, 2574 insertions(+), 1 deletions(-) [+] |
line wrap: on
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/AUTOEXEC.BAS Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,1 @@ +10 RUNM"TEST
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If not, see <http://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + {project} Copyright (C) {year} {fullname} + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<http://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<http://www.gnu.org/philosophy/why-not-lgpl.html>.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/README.md Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,24 @@ +# Required utilities: + +* make +* lwtools +* A reasonably modern Nitros9 with the 'ccbkrn' module and Gary's SD drivers installed on /dd (default in modern Nitros9 builds). "cat" or "dd" this rbf image to your SD card. + +# Optional utilities: + +* toolshead +* de1flash (for flashing de1 board from linux w/ the quartus gui) + +# To Install: + +* build the ROM image via "make rom.img". +* burn the resultant file, rom.img to rom slot 2 of your CoCoFPGA. - this means burning rom.img to flash address 3fc000 in your cocofpga's flash ram. + +I use something like this: + +quartus_pgm -m jtag -o 'p;de1flash.sof' +quartus_stp -t de1flash.tcl write rom.img@0x3fc000 + +# To use: + +Set your cocofpga's switch to mpi slot 2 and turn it on. It boots fast, so don't blink. \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/boot.asm Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,699 @@ +;;; +;;; Boot OS9 via CoCoBoot interface +;;; +;;; + + + include "sd.def" + + export prestart + + import start.bss + import length.bss + +CR equ 13 +SP equ 32 + +DBUF0 equ $600 ; we'll borrow some memory from basic +DBUF1 equ $700 ; another buffer +SCRPTR equ $0002 ; point to the os screen pointer + + +DD.BIT equ $6 ; 2B no of sectors per cluster +DD.NAM equ $1f ; 32B volume name field +DD.DIR equ $8 ; 3B descriptor cluster for root dir + +FD.SIZ equ $9 ; 4B size of file in bytes + + + .area .bss +root rmb 3 ; 3b lsn of root dir +;; FCB - vars needed to control file access. +sptr rmb 2 ; ptr to current segment +dptr rmb 2 ; ptr to data buffer +bcount rmb 2 ; number of bytes left in buffer +fcounth rmb 2 ; number of bytes left in file (high word) +fcount rmb 2 ; number of bytes left in file (low word) +cptr rmb 2 ; pointer in block (boot cpu address) +blocks rmb 1 ; number of regular contigeous blocks +block rmb 1 ; current block number +dirbuf rmb 32 ; +ksize rmb 2 ; "stacked" size of os9 boot file +offset rmb 3 ; 3B offset of root partition +stack1 rmb 64 +stackb + + .area .bounce +BOUNCE rmb 255 + + .area .code +prestart + jmp start ; me first, but jump over DATA + +BOOT fcn "OS9Boot" +KRN fcn "ccbkrn" +str0 fcn "Loading OS9Boot" +str1 fcn "Loading ccbkrn" +str2 fcn "Xfr Control to KRN..." +str3 fcn "CoCoBoot SDIO" +str4 fcn "Vol Name: " + +start + orcc #$50 ; shut off interrupts + clr $ffa0 ; set mmu bank 0 to phys 0 + clr $ffdf ; set SAM RAM mode + clr $ffd9 ; high speed poke +;; clear ram vars + ldx #start.bss +a@ clr ,x+ + cmpx #(start.bss+length.bss) + bne a@ +;; + lds #stackb ; set stack + ldx #$ff90 ; setup gimme + jsr gime ; +;; setup screen + jsr scrSetup ; setup screen + ldx #str3 ; print banner + jsr putscr ; +;; init SD card + jsr ll_init + lbcs initerr +;; get LSN0 + ldx #DBUF0 ; set disk arg + stx DPTR + clr LSN + clr LSN+1 + clr LSN+2 +;; Test for CCPT + jsr ccpttest +;; try to mount os9 filesystem + jsr getlsn +;; print volume name + ldx #str4 + jsr puts + ldx #DBUF0+DD.NAM + jsr putscr +;; get root dir's lsn + ldx #DBUF0+DD.DIR + ldu #root + jsr cpy3 +;; open boot file + ldx #str0 + jsr puts + ldx #BOOT + jsr nopen + lbcs fnferr + ldx #dirbuf+$1d ; !!! replace with constant + ldu #LSN ; + jsr cpy3 ; set LSN = lsn of dirent + jsr open ; and open the file + ldd fcounth ; check size + lbne toobig ; +;; calculate start address + ldd fcount ; save os9 size for passing to KRN + std ksize ; + ldd #$f000 ; f000 - fcount = start address + subd fcount ; + clrb ; and round it down to near page boundary + tfr d,x ; X = cpu load address + pshs x ; push onto stack ( cpustart ) + cmpx #$2000 ; cant go lower + lblo toobig +;; set calc init mmu for bounce routine + lsra ; make A = mmu reg no + lsra ; take top three bits + lsra ; + lsra ; + lsra ; + pshs a ; push start mmu no ( cpustart mmustart ) +;; calc no of contigeous block for os9boot loading routine + ldb #7 ; A = no of contigeous block + subb ,s ; + stb blocks ; save for loading routine +;; calc beginning cpu address + ldd 1,s ; D = cpu start + anda #$1f + addd #$4000 ; adjust for loader + std cptr +;; copy os9boot into memory +b@ jsr testload ; load os9boot into memory + jsr putCR +;; open krn file + ldx #str1 + jsr puts + ldx #KRN + jsr nopen + bcs fnferr + ldx #dirbuf+$1d ; !!! replace with constant + ldu #LSN ; + jsr cpy3 ; set LSN = lsn of dirent + jsr open ; and open the file + ldx fcounth ; check size of krn file + lbne krnsize ; is way too big + ldx fcount ; + cmpx #$f00 ; + lbne krnsize ; wrong size +;; copy krn file into memory + ldx #$f000 + jsr fload ; load ccbkrn into memory + jsr putCR +;; done with disk go high speed :( + clr $ffd9 +;; clear out DP page + ldx #0 + clrb + jsr memz +;; set dp + tfr b,dp +;; set gime mirror + ldx #$90 + jsr gime +;; copy bounce routine down to RAM + ldx #bounce + ldu #BOUNCE + ldb #bounceend-bounce +c@ lda ,x+ + sta ,u+ + decb + bne c@ +;; jump to OS9 + ldx #str2 + jsr putscr + jmp BOUNCE + + +iloop bra iloop + + +fnferr ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn ": FNF Error!" + +initerr ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "Driver Init Error!" + +mnterr ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "LSN0: bad format!" + +toobig ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "Too Big!" + +krnsize + ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "Wrong Size!" + + +;;; Test for presence of CCPT partitioning +ccpttest + pshs d,x + ldd DBUF0 ; get magic + cmpd #$4343 ; check for "CC" + lbne no@ + ldd DBUF0+2 ; check for "PT" + cmpd #$5054 + lbne no@ ; +no@ ldx #p0@ + jsr putscr + puls d,x,pc +p0@ fcn "CCPT not found." + + +;;; Setup Screen for os9 (sigh) +scrSetup + pshs d,x + ;; set colors: green on black + ldb #$12 + stb $ffbc + ldb #0 + stb $ffbd + ;; clear a screen's worth of video memory + ldb #$3b + stb $ffa0 + ldx #$0000 + ldd #$2020 +a@ std ,x++ + cmpx #$0400 + bne a@ + ;; set screen pointer up + ldd #8 + std SCRPTR + clr $ffa0 + puls d,x,pc + + +;;; Setup memory with gimme setting, aka Do os9's work :( +;;; takes: X = address +;;; returns: nothing +;;; modifies: nothing +gime + pshs d,x,u + ldu #table@ + lda #16 +a@ ldb ,u+ + stb ,x+ + deca + bne a@ + puls d,x,u,pc +table@ .dw $6c00 + .dw $0000 + .dw $0900 + .dw $0000 + .dw $0320 + .dw $0000 + .db $00 + .dw $ec01 + .db $00 + +;;; This bounce routine gets copied down into low memory +;;; is completes the memory map. Plz jump to me. +bounce ; ( cpustart mmustart ) + ;; setup mmu to how os9 expects it + clr $ffa0 ; phys block 0 is always mapped to $0000 + puls a ; get mmu start ( cpustart ) + ldy #$ffa0 + leay a,y ; Y = beginning mmu + ldb #1 ; 1 is first os9 system block +a@ stb ,y+ ; store bank no in mmu + cmpy #$ffa7 ; did we move to the last mmu block + beq b@ ; yes, then quit looping + incb ; increment bank no + bra a@ ; repeat +b@ ldb #$3f ; and mmu7 is always $3f + stb ,y + ;; find and jump to KRN module + ldx $f009 ; KRN relative start address + leax $f000,x ; make it absolute + ldu #ksize ; U = ptr to os9boot size + orcc #$50 ; really, really turn off interrupts + jmp ,x ; jump to kernel (bye!) +bounceend + + + + +;;; Read os9 file into memory +;;; takes: open os9 file, +testload + pshs d,x + ldb #1 ; set initial bank to 1 + stb block ; + stb $ffa2 ; + ;; loop until EOF +a@ ldx cptr ; get block pointer + jsr readb ; read a byte + bcs out@ ; done! + stb ,x+ + stx cptr + ;; check for end of bank + cmpx #$6000 + bne a@ + ;; end of bank + ldd #$4000 ; reset block pointer + std cptr + dec blocks ; any more blocks left + bne b@ + ;; no more blocks left set $3f + ldb #$3f + bra c@ +b@ inc block + ldb block +c@ stb $ffa2 ; set mmu + bra a@ +out@ puls d,x,pc + +;;; Read file into memory +;;; takes: X = address to load, file opened. +;;; modifies: nothing +fload pshs b,x +a@ jsr readb + bcs done@ + stb ,x+ + bra a@ +done@ puls b,x,pc + + + +;;; open a file via a name +;;; takes: X = filename (zero termed) +;;; returns: dirbuf set to file's FD, C set on error. +nopen + pshs d,x,u + ;; open root directory + ldx #root + ldu #LSN + jsr cpy3 + jsr open + ;; get a dirent into buffer + ldu 2,s ; U = filename +b@ lda #32 + ldx #dirbuf +a@ jsr readb + bcs nfound@ + stb ,x+ + deca + bne a@ + jsr os9toz + ldx #dirbuf + jsr strcmp + bcc found@ + bra b@ +nfound@ coma + puls d,x,u,pc +found@ clra + puls d,x,u,pc + + +;;; zero mem +;;; takes: X = ptr, B = number of byte to zero +;;; returns: nothing +;;; modifies: nothing +memz + pshs b,x +a@ clr ,x+ + decb + bne a@ + puls b,x,pc + + + +;;; strcmp +;;; takes: X = zstring, U = zstring +;;; returns: C clear if equal +strcmp + pshs b,x,u +a@ ldb ,x+ + cmpb ,u+ + bne ne@ ; not equal + tstb + beq e@ ; equal + bra a@ ; loop +e@ clrb + puls b,x,u,pc +ne@ comb + puls b,x,u,pc + +;;; change dirbuf's name to a z-string +os9toz + pshs b,x + ldx #dirbuf + tst ,x + beq out@ +a@ ldb ,x+ + bpl a@ + andb #$7f + stb -1,x + clr ,x +out@ puls b,x,pc + + +;;; Open file +;;; takes: LSN = lsn of file's FD +;;; returns: nothing +open + pshs d,x + ldx #DBUF1 ; load dbuf1 with file's FD + stx DPTR + jsr getlsn + ldd #DBUF1+$10 ; first segment + std sptr ; save ptr + jsr fill ; and get first sector + ;; set fcount + ldd DBUF1+FD.SIZ + std fcounth + ldd DBUF1+FD.SIZ+2 + std fcount + puls d,x,pc + +;;; get one byte from file +;;; takes: nothing, +;;; returns: B = byte, C set on EOF +readb + pshs a,x + ldd fcount ; is the entire file out of bytes? + beq eof@ + ldd bcount + bne a@ ; if left don't refill + ;; refill file's data buffer + jsr fill + ;; +a@ ldd fcount + subd #1 + std fcount + ldd bcount + subd #1 + std bcount + ldx dptr + ldb ,x+ + stx dptr + clra + puls a,x,pc +eof@ coma + puls a,x,pc + + +fill + pshs d,x,u ; save regs + jsr spin1 + ldx sptr + ldd 3,x ; get sector count + bne a@ ; no more secs left in seg? + ;; get next segment + ldx sptr + leax 5,x + stx sptr + ;; fill buffer +a@ ldx sptr ; copy segment's LSN to args + ldu #LSN ; + jsr cpy3 ; + ldx #DBUF0 ; set data buffer + stx DPTR ; + jsr getlsn ; and get the sector + ;; increment segment + ldx sptr ; increment segment's LSN + jsr inc3 ; + ldd 3,x ; decrement segment's sector count + subd #1 ; + std 3,x ; + ;; set file dirs + ldd #256 + std bcount + ldd #DBUF0 + std dptr + puls d,x,u,pc ; return + + +;;; Spin the ticker +;;; takes: nothing +;;; returns: nothing +;;; modifies: nothing +spin1 + pshs b + ldb #'. + jsr putc + puls b,pc + + +;;; Copy 3 bytes value +;;; take: X = src ptr, U = dst ptr +;;; modifies: nothing +cpy3 + pshs d,x,u + ldd ,x++ + std ,u++ + ldb ,x + stb ,u + puls d,x,u,pc + + +;;; Add 3 byte value store result in X ptr +;;; takes: X = 3B ptr, U = 3B ptr +;;; modifies: nothing +add3 + pshs d + ldd 1,u + addd 1,x + std 1,x + ldb ,u + adcb ,x + stb ,x + puls d,pc + + + +;;; increment 3 byte value by one +;;; takes: X = ptr to 3 bytes +;;; returns: nothing +inc3 + pshs d,x + ldd 1,x + addd #1 + std 1,x + ldb ,x + adcb #0 + stb ,x + puls d,x,pc + + +;;; deblocker to translate 256B LSN to a 512B LSN +;;; takes: args in LSN/DPTR +;;; modifies: nothing +getlsn + pshs b,x + ldx #LSN ; get pointer + lsr ,x+ + ror ,x+ + ror ,x+ + ldb #1 ; 256b lower read + bcc a@ + negb +a@ stb SMALL + ldx #LSN ; add partition offset + ldu #offset + jsr add3 + jsr ll_read + puls b,x,pc + + + +;;; Dump 128 byte to screen +;;; takes: X = ptr to data +;;; modifies: nothing +dump + pshs d,x + jsr putCR + lda #8 + pshs a ; put row counter +b@ lda #8 ; column counter + pshs x +a@ ldb ,x+ + jsr putb + jsr putSP + deca + bne a@ + puls x + clr 8,x + jsr putscr + dec ,s + bne b@ + leas 1,s + puls d,x,pc + +;;; Print a Space +putSP + pshs b + ldb #SP + jsr putc + puls b,pc + + +;;; Print a CR +putCR + pshs d + ldb #$3b + stb $ffa0 + ldd SCRPTR + addd #32-8 + andb #~$1f + addd #8 + std SCRPTR + clr $ffa0 + puls d,pc + + +;;; Print a Z string +;;; takes: X = ptr to string +;;; modifies: nothing +puts + pshs b,x +a@ ldb ,x+ + beq done@ + jsr putc + bra a@ +done@ puls b,x,pc + +;;; Print a 3 byte value ( in hex ) +;;; takes: X = ptr to value +;;; modifies: nothing +put3 + pshs d,x + ldd ,x++ + jsr putw + ldb ,x + jsr putb + puls d,x,pc + + +;;; Print a word ( in hex) +;;; takes: D = word +;;; modifies: nothing +putw + pshs b + tfr a,b + bsr putb + puls b + bsr putb + rts + +;;; Print a byte (in hex) +;;; takes: B = byte +;;; modifies: nothing +putb + pshs d + lsrb + lsrb + lsrb + lsrb + bsr putn + ldb 1,s + bsr putn + puls d,pc + +;;; Print a Char +;;; takes: B = charactor +;;; modifies: nothing +putc + pshs d,x + lda #$3b ; put 3b in bank 0 + sta $ffa0 + ldx SCRPTR + stb ,x+ + stx SCRPTR + clr $ffa0 ; put 0 in bank 0 + puls d,x,pc + + +;;; Print a nibble +;;; takes: B = nibble +;;; modifies: nothing +putn + pshs b + andb #$f + addb #$30 + cmpb #$39 + bls a@ + addb #7 +a@ jsr putc + puls b,pc + + +;;; Print a string followed by a CR +;;; takes: X = zero termed string +;;; returns: nothing +;;; modifies: nothing +putscr + jsr puts + jsr putCR + rts + + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/makefile Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,53 @@ +# A makefile for booting os9 + +include ../../../rules.mak + +DEPENDS := ./makefile + +ALLJOBS = FPGABOOT.BIN fpgaboot.rom + +DSKFPGABOOT = fpgaboot.dsk + +DSKS = $(DSKFPGABOOT) + +all: banner $(ALLJOBS) $(DEPENDS) + +banner: + @$(ECHO) "**************************************************" + @$(ECHO) "* *" + @$(ECHO) "* Brett Gordon's CocoFPGA Boot ROM *" + @$(ECHO) "* *" + @$(ECHO) "**************************************************" + +fpgaboot.rom: rom.asm FPGABOOT.BIN + lwasm -fraw -ofpgaboot.rom -mrom.map rom.asm + +$(DSKFPGABOOT): FPGABOOT.BIN AUTOEXEC.BAS + $(RM) $@ + decb dskini $@ + decb copy -b -2 FPGABOOT.BIN $@,FPGABOOT.BIN + decb copy -a -0 -l AUTOEXEC.BAS $@,AUTOEXEC.BAS + decb copy -b -2 fpgaboot.rom $@,FPGABOOT.ROM + +boot.bin: boot.asm sd.asm + lwasm -mboot.map -oboot.bin boot.asm + +FPGABOOT.BIN: boot.asm sd.asm test.lnk + lwasm -fobj -oboot.o boot.asm + lwasm -fobj -osd.o sd.asm + lwlink -mtest.map -oFPGABOOT.BIN -stest.lnk -b boot.o sd.o + +dsk: all $(DSKS) + +dskcopy: dsk + $(CP) $(DSKS) $(DSKDIR) + +dskclean: + $(RM) $(DSKS) + +clean: dskclean + $(RM) $(ALLJOBS) *.o rom.map test.map + +info: + @$(ECHO) "*** Brett Gordon's CocoFPGA Boot ROM ***" + @$(foreach dsk, $(DSKS), $(ECHO) $(dsk);)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/notes.txt Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,11 @@ + + + +*********************************** +TODO +*********************************** + +* make load os9 by physical block, and put a jump routine for remaping the + memory to trampoline to the kernel - this will allow for a max sized os9 kernel, whatever that is. + +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/rom.asm Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,25 @@ +;;; +;;; This sits in a DECB ROM and loads the bootloader +;;; from the end of this binary down to it's proper place +;;; + + org $c000 ; is a ROM + .ascii 'DK' ; is a DECB-look-a-like ROM + jmp start ; jump over the garbage + fill $ff,9*256 ; this is area that Super Basic trashes +start ldx #payload ; get address of payload +pre lda ,x+ ; check flag + bne post ; is end so post processes + ldy ,x++ ; get size + ldu ,x++ ; get address +loop ldb ,x+ ; get a byte + stb ,u+ ; move the byte + leay -1,y ; bump counter + bne loop ; move another if not done + bra pre ; get next block header +post ldx 2,x ; X = execution address of binary + jmp ,x ; and jump to it +payload + includebin "FPGABOOT.BIN" + + fill $ff,$e000-* ; pad to 8k
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/sd.asm Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,452 @@ +;;; Simple sd/spi driver. Lifted from Gary Becker's +;;; Nitros9 drivers. +;;; +;;; This will deblock 256 bytes, but only on reads - +;;; there is no provision for writing partial sectors. +;;; +;;; To use Run-Time: +;;; * load up the public interface variables, call ll_read +;;; * LSN address is always in 512B sectors nos. +;;; + + export DPTR + export LSN + export SMALL + export ll_read + export ll_init + +EIO equ 1 ; Error on Read +EWP equ 2 ; Error on Write Protect +ENR equ 3 ; Error on Not Ready +IntMasks equ $50 ; shut off firq,irq interrupts +HwBase equ $ff64 ; hardware base address +Carry equ $1 ; CC's carry bit + + .area .bss +;;; Public interface variables +DPTR rmb 2 ; data address +LSN rmb 3 ; 24 bit lsn :( +SMALL rmb 1 ; 0=512B read, 1=256B read, -1=256B 2nd 1/2 read + +;;; Internal interface +SDVersion RMB 1 ; 0 = Byte Addressable SD + ; !0 = Sector Addressable SD +CMDStorage RMB 1 ; Command storage area for read/write CMDs +SD_SEC_ADD RMB 4 ; Four bytes - some devices are byte addressable +CMDCRC RMB 1 ; CRC + + .area .code +;;; A Table of pre-done 6 byte commands +;;; This is const +CMD0 fcb $40,$00,$00,$00,$00,$95 +*CMD1 fcb $41,$00,$00,$00,$00,$95 +CMD8 fcb $48,$00,$00,$01,$AA,$87 +*CMD13 fcb $4D,$00,$00,$00,$00,$95 +CMD16 fcb $50,$00,$00,$02,$00,$FF +ACMD41V1 fcb $69,$00,$00,$00,$00,$FF +ACMD41V2 fcb $69,$40,$00,$00,$00,$FF +CMD55 fcb $77,$00,$00,$00,$00,$FF +CMD58 fcb $7A,$00,$00,$00,$00,$FF + +* Read/Write commands +CMDRead EQU $5100 Command to read a single block +CMDWrite EQU $5800 Command to write a sector +CMDEnd EQU $00FF Every command ends with $95 +* SPI Address Equates +* SPI Control Register +SPICTRL EQU 0 +SLOT_SEL_0 EQU 1 +SPI_IRQ_EN EQU $40 +SPI_EN EQU $80 Sets SPI enable and IRQ enable +* SPI Status Register +SPISTAT EQU 0 +CARD_DET_0 EQU 1 +CARD_LOCK_0 EQU 2 +IRQ_SLOT_0 EQU $80 +* SPI Transmit / Receive Register +SPIDAT EQU 1 + + +;;; ll_read - Low level read routine +;;; takes: parameters in public interface +;;; returns: C set on error, B = error +;;; modified: all +ll_read + orcc #IntMasks ; disable interrupts + ldx #HwBase ; Get address of hardware + lda SPISTAT,x ; check for card + lsra + lbcc NOTRDY ; No card installed, so no reads +d@ ldd #CMDRead + std CMDStorage ; Read command and clear MSB of address + ldd #CMDEnd + std SD_SEC_ADD+3 ; Clear LSB of address and CRC + lda #(SPI_EN+SLOT_SEL_0) ; but not IRQ enable + bsr LSNMap0 ; apply the approipraite LSN, send cmd + lbcs IOERR ; If we timed out, branch with error + lbne IOERR ; If the R1 was not 0 + ;; wait for a FE +a@ lda SPIDAT,x ; Send FF (receive a byte) until we get FE + cmpa #$FE ; is FE + nop ; + bne a@ ; no: loop + ;; read bytes + ldy DPTR ; Get the sector buffer address + tst SMALL ; small blocks? + beq read512@ ; no go read all 512 + bmi otherhalf@ ; go read second 1/2 + bsr read256 ; read 1st half of sector + bsr drop256 ; + bra b@ ; continue +otherhalf@ + bsr drop256 ; read 2nd half of sector + bsr read256 ; + bra b@ ; continue +read512@ + bsr read256 ; read all 512 bytes of sector + bsr read256 ; + ;; get CRC +b@ lda SPIDAT,x ; Send 2x FF to get the CRC + nop + nop + lda SPIDAT,x ; We ignore the CRC + ;;; No errors, exit +c@ lbra RETOK + ;; Errors, exit + + +;;; Read 256 bytes +;;; takes: Y = ptr to data +;;; takes: X = hwbase +;;; modifies: Y, B, A +read256 + ldb #128 ; counter 128 +a@ lda SPIDAT,x ; get one byte + sta ,y+ ; store in buffer + lda SPIDAT,x ; get another byte + sta ,y+ ; store in counter + decb ; bump counter + bne a@ ; not done? then loop + rts ; return + +;;; Drop 256 bytes +;;; takes: Y = ptr to data +;;; takes: X = hwbase +;;; modifies: Y, B, A +drop256 + ldb #128 ; counter = 128 +a@ lda SPIDAT,x ; get one byte + nop ; delay + nop ; delay + lda SPIDAT,x ; get another byte + decb ; bump counter + bne a@ ; not done? then loop + rts ; return + + +;;; Map LSN into command buffer, sends command +;;; takes: A = CNTL bits, command packet loaded (except lsn) +;;; returns: C set on error, Z = 0 on R1 error ? +;;; modifies: A +;;; +;;; SD/MMC uses a 32 bit byte mapping for the LSN, so we must shift the +;;; logical LSN up one bit and then clear the 4th byte to build the +;;; correct LSN string +;;; +;;; SDHC uses a 32 bit 512 byte sector mapping for the LSN.So there is +;;; no need to shift the LSN we can just write it as is and clear out the +;;; upper LSN byte, because we only get 3 bytes from coco for LSN +LSNMap0 + sta SPICTRL,x + nop + lda SPIDAT,x ; Send 1 FF + lda SDVersion + bne secadd ; GoTo Sector Address type + ;; Apply lsn to byte addressing mmc + ldd LSN+1 ; bytes 1 and 2 (middle and LSB) + aslb ; Byte address needs to be shifter one more bit + rola + std SD_SEC_ADD+1 ; save in byte 1,2 + lda LSN ; calc MSB + rola + sta SD_SEC_ADD ; store in byte 0 + bra merge + ;; apply lsn to sector addressing SD/HC +secadd ldd LSN+1 ; just copy it + std SD_SEC_ADD+2 + lda LSN + sta SD_SEC_ADD+1 + ;; two method merge here +merge lda SPIDAT,x ; Send 1 FF + ldy #CMDStorage + ;; Fall through to cmdsend + +* cmdsend - Sends a 6 byte command +* Entry: X = HW addr +* Y = Address of first byte of command sequence +* Exit: +* Registers preserved: all but A/B/X +cmdsend + lda ,y + sta $FF66 + ldb #6 +a@ lda ,y+ + sta SPIDAT,x + decb + bne a@ + andcc #^Carry ; Clear Carry + ldb #$00 ; Probably too much +b@ lda SPIDAT,x ; send FF, wait till + flipped 7 bit + bpl c@ ; + decb ; bump counter + bne b@ ; not done, loop + comb ; set carry for error +c@ rts ; return + +* ll_write - Low level write routine +* +* Entry: +* Registers: +* Static Variables of interest: +* PhysSect = starting physical sector to write to +* SectSize = physical sector size (0=256,1=512,2=1024,3=2048) +* +* Exit: +* All registers may be modified +* Static variables may NOT be modified +ll_write + orcc #IntMasks ; disable interrupts + ldx #HwBase ; Get address of hardware + lda SPISTAT,x + lsra + lbcc NOTRDY ; no card - go not ready + lsra ; bit one is WP + lbcs WPERR ; Write Protected, then exit with WP error + ldd #CMDWrite ; load up write command + std CMDStorage ; + ldd #CMDEnd ; put LSB of LSN and CRC :) + std SD_SEC_ADD+3 ; + lda #(SPI_EN+SLOT_SEL_0) + bsr LSNMap0 ; apply the appropriate LSN, sends cmd + bcs IOERR ; error? + bne IOERR ; error? + lda SPIDAT,x ; 2 bytes >= 1 byte after R1 + nop ; Might not be enough ????? + nop + lda SPIDAT,x + lda #$FE ; Start of sector byte and clear counter + sta SPIDAT,x ; Mark the start of the sector + nop ; Too much ??????? + ;; Write the 512 Byte sector + ldy DPTR ; Y = data buffer + clrb ; B = 256 byte counter +a@ lda ,y+ ; get a byte from buffer + sta SPIDAT,x ; write it to SD + nop ; wait a bit + lda ,y+ ; get another byte from buffer + sta SPIDAT,x ; write it + decb ; bump counter + bne a@ ; repeat if not done + ;; get crc + lda SPIDAT,x ; send two FFs as CRC + nop + nop ; Might not be enough ??????? + stb SPIDAT,x ; Second FF (send 0 to check) + cmpa #$E5 ; Response - Data accepted token + beq fnd0 ; First byte? no? check four more bytes. + ;; Make sure the response was accepted + lda SPIDAT,x ; get response + cmpa #$E5 ; Data accepted token + beq fnd0 ; + lda SPIDAT,x ; check again + cmpa #$E5 ; + beq fnd0 ; + lda SPIDAT,x ; check again + cmpa #$E5 ; + beq fnd0 ; + lda SPIDAT,x ; check again + cmpa #$E5 ; + bne IOERR ; Write error + ;; Check to see if the write is complete +fnd0 lda SPIDAT,x + beq lpwr2 ; could be a bne but + bra fnd0 ; I want the extra cycles +lpwr2 lda SPIDAT,x + cmpa #$FF + beq wfin + bra lpwr2 +wfin ldb #10 ; Lets send 16 more FF just in case +b@ lda SPIDAT,x + decb + bne b@ + ;; No error so exit + bra RETOK + +* Error handlers + +RETOK ldd #$0000 ; return the disaster of No Error + clr SPICTRL,x +* andcc #^IntMasks + clra + rts + +WPERR ldd #$0000+EWP + bra a@ +IOERR + ldd #$0000+EIO + bra a@ +NOTRDY + ldd #$0000+ENR +a@ + sta SPICTRL,x ; Set the hardware +* andcc #^IntMasks ; Enable interrupts + coma ; Set Carry + rts + + +* ll_init - Low level init routine +* Entry: +* Y = address of device descriptor +* U = address of low level device memory area +* +* Exit: +* CC = carry set on error +* B = error code +* +* Note: This routine is called ONCE: for the first device +* IT IS NOT CALLED PER DEVICE! +* + +ll_init + orcc #IntMasks ; disable interrupts + ldx #HwBase ; load x with the hw address for the IRQ routine + lda SPISTAT,x + lsra + bcc NOTRDY ; If there is no card, nothing to do + ;; Enable SPI + lda #SPI_EN ; Enable SPI Interface, but not CS + sta SPICTRL,x + ;; send 74 clock cycles, no SS + ldb #$10 +a@ lda SPIDAT,x ; Send FF + decb ; 2 cycles, need 4 + nop + bne a@ ; 3 Cycles + ;; Initialize card 0 +CRD0 lda #SPI_EN+SLOT_SEL_0 ; Enable SPI and lower CS + sta SPICTRL,x + ;; Send CMD0 + lda SPIDAT,x ; Send 1 FF + nop ; ????????? enough + ldy #CMD0 ; Might need more cycles ??????? + lda SPIDAT,x ; Send 1 more FF + + lbsr cmdsend ; Also does a GETR1 + + bcs NOTRDY + anda #$7E ; Idle is ok + bne NOTRDY ; but nothing else + ;; Send CMD8 + lda SPIDAT,x ; Send 1 FF + nop + ldy #CMD8 ; Might need more cycles ?????? + lda SPIDAT,x ; Sens 1 more FF + lbsr cmdsend ; Also does an GETR1 + bcs SDV1 + anda #$7E + bne SDV1 + lda SPIDAT,x ; Byte 1 of R3/R7, through it away + nop + nop + nop + lda SPIDAT,x ; Byte 2 of R3/R7, throught it away + nop + nop + nop + lda SPIDAT,x ; Byte 3 of R3/R7, should be 1 + cmpa #$01 ; 2 cycles + bne NOTRDY ; 2 cycles + nop + lda SPIDAT,x ; Byte 4 of R3/R7, should be $AA + cmpa #$AA ; 2 cycles + bne NOTRDY ; 2 cycles + nop + ;; Send ACMD41 by first CMD55 +loop41V2 + lda SPIDAT,x ; Send 1 FF + nop + ldy #CMD55 ; might need more ?????? + lda SPIDAT,x ; Send 1 FF + lbsr cmdsend ; Also does an GETR1 + bcs NOTRDY + anda #$7E ; Idle is ok + bne NOTRDY ; but nothing else + ;; Send ACMD41 + lda SPIDAT,x + nop + ldy #ACMD41V2 + lda SPIDAT,x + lbsr cmdsend + bcs NOTRDY ; No response + beq Send58 ; If 0 then CMD58 + cmpa #$01 ; if 1 then try again + beq loop41V2 + lbra NOTRDY + ;; Send CMD58 +Send58 lda SPIDAT,x + nop + ldy #CMD58 ; Read OCR + lda SPIDAT,x + lbsr cmdsend + lbcs NOTRDY + lda SPIDAT,x ; Byte 1 of OCR + anda #$40 ; CCS bit 1= sector 0= byte + sta SDVersion + lda SPIDAT,x ; Byte 2 of R3/R7, through it away + nop + nop + lda SPIDAT,x ; Byte 3 of R3/R7, through it away + nop + nop + lda SPIDAT,x ; Byte 4 of R3/R7, through it away + lda SDVersion ; 0 = byte addressable, !0 = block addressable + bne FININIT + bra Send16 + ;; Send ACMD41 by first CMD55 +SDV1 +loop41V1 + lda SPIDAT,x ; Get extra bytes in case of bad R7 previously + nop + lda SPIDAT,x + clr SDVersion ; Byte addressable + lda SPIDAT,x + ldy #CMD55 + lda SPIDAT,x + lbsr cmdsend + lbcs NOTRDY + anda #$7E ; Idle is ok + lbne NOTRDY ; but nothing else + ;; send ACMD41 + lda SPIDAT,x + ldy #ACMD41V1 + lda SPIDAT,x + lbsr cmdsend + lbcs NOTRDY + beq Send16 ; If 0 then CMD16 + cmpa #$01 ; if 1 then try again + beq loop41V1 + lbra NOTRDY + ;; send CMD16 + * Send CMD16 +Send16 lda SPIDAT,x + ldy #CMD16 + lda SPIDAT,x + lbsr cmdsend + lbne NOTRDY ; but nothing else + ;; finished +FININIT lda SPIDAT,x ; Send last FF + nop + nop + lda #SPI_EN ; Turn on SPI and turn off CS + sta SPICTRL,x + rts
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/sd.def Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,8 @@ + + + + extern DPTR ; uint16 data address + extern LSN ; uint24 LSN + extern SMALL ; int8: 0=512B read, 1=256B read, -1=256B 2nd 1/2 read + extern ll_read ; call to do a read with above set. + extern ll_init ; call to initialize SD driver \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/test.asm Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,620 @@ +;;; +;;; Boot OS9 via CoCoBoot interface +;;; +;;; + +CR equ 13 +SP equ 32 + +DBUF0 equ $600 ; we'll borrow some memory from basic +DBUF1 equ $700 ; another buffer +SCRPTR equ $0002 ; point to the os screen pointer + +DD.BIT equ $6 ; 2B no of sectors per cluster +DD.NAM equ $1f ; 32B volume name field +DD.DIR equ $8 ; 3B descriptor cluster for root dir + +FD.SIZ equ $9 ; 4B size of file in bytes + + +;;; +;;; +;;; Low Ram Variables +;;; +;;; + org $2000 +RAM equ * +root rmb 3 ; 3b lsn of root dir + ;; FCB - vars needed to control file access. +sptr rmb 2 ; ptr to current segment +dptr rmb 2 ; ptr to data buffer +bcount rmb 2 ; number of bytes left in buffer +fcounth rmb 2 ; number of bytes left in file (high word) +fcount rmb 2 ; number of bytes left in file (low word) + ;; and a buffer for directory entries +dirbuf rmb 32 ; +ksize rmb 2 ; "stacked" size of os9 boot file +stack rmb 64 +stackb ; bottom of stack + +;;; +;;; +;;; Code +;;; +;;; + + + org $c000 ; sit low +prestart + jmp start ; me first, but jump over DATA + + +BOOT fcn "OS9Boot" +KRN fcn "ccbkrn" +str0 fcn "Loading OS9Boot" +str1 fcn "Loading ccbkrn" +str2 fcn "Xfr Control to KRN..." +str3 fcn "CoCoBoot SDIO" +str4 fcn "Vol Name: " + +start + orcc #$50 ; shut off interrupts + lds #stackb ; set stack + ;; clear RAM vars + ldx #RAM + ldb #stack-RAM + jsr memz + ;; + ldx #$ff90 ; setup gimme + jsr gime ; + clr $ffa0 ; set mmu bank 0 to phys 0 +* clr $ffdf ; set SAM RAM mode + ;; setup screen + jsr scrSetup ; setup screen + ldx #str3 ; print banner + jsr putscr ; +x@ bra x@ + ;; init SD card + jsr ll_init + lbcs initerr + ;; get LSN0 + ldx #DBUF0 ; set disk arg + stx DPTR + clr LSN + clr LSN+1 + clr LSN+2 + ;; Test for CCPT here !!!! + jsr ccpttest + ;; try to mount os9 filesystem + jsr getlsn + ;; print volume name + ldx #str4 + jsr puts + ldx #DBUF0+DD.NAM + jsr putscr + ;; get root dir's lsn + ldx #DBUF0+DD.DIR + ldu #root + jsr cpy3 + ;; open boot file + ldx #str0 + jsr puts + ldx #BOOT + jsr nopen + lbcs fnferr + ldx #dirbuf+$1d ; !!! replace with constant + ldu #LSN ; + jsr cpy3 ; set LSN = lsn of dirent + jsr open ; and open the file + ldd fcounth ; check size + lbne toobig ; + ;; calculate start address + ldd fcount ; save os9 size for passing to KRN + std ksize ; + ldd #$f000 ; f000 - fcount = start address + subd fcount ; + clrb ; and round it down + tfr d,x ; X = cpu load address + cmpx #$4000 ; cant go lower + lblo toobig + ;; set mmu + lsra + lsra + lsra + lsra + lsra ; A = mmu bank no + ldy #$ffa0 + leay a,y ; Y = beginning mmu + ldb #1 ; 1 is first os9 system block +a@ stb ,y+ ; store bank no in mmu + cmpy #$ffa7 ; did we move to the last mmu block + beq b@ ; yes, then quit looping + incb ; increment bank no + bra a@ ; repeat + ;; copy os9boot into memory +b@ jsr fload ; load os9boot into memory + jsr putCR + ;; open krn file + ldx #str1 + jsr puts + ldx #KRN + jsr nopen + bcs fnferr + ldx #dirbuf+$1d ; !!! replace with constant + ldu #LSN ; + jsr cpy3 ; set LSN = lsn of dirent + jsr open ; and open the file + ldx fcounth ; check size of krn file + lbne krnsize ; is way too big + ldx fcount ; + cmpx #$f00 ; + lbne krnsize ; wrong size + ;; copy krn file into memory + ldx #$f000 + jsr fload ; load ccbkrn into memory + jsr putCR + ;; clear out DP page + ldx #0 + clrb + jsr memz + ;; set dp + tfr b,dp + ;; set gime mirror + ldx #$90 + jsr gime + ;; jump to OS9 + ldx #str2 + jsr putscr + ldx $f009 ; KRN relative start address + leax $f000,x ; make it absolute + ldu #ksize ; U = ptr to os9boot size + orcc #$50 + jmp ,x ; jump to kernel (bye!) + +iloop bra iloop + + +fnferr ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn ": FNF Error!" + +initerr ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "Driver Init Error!" + +mnterr ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "LSN0: bad format!" + +toobig ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "Too Big!" + +krnsize + ldx #p0@ + jsr puts +a@ bra a@ +p0@ fcn "Wrong Size!" + + +;;; Test for presence of CCPT partitioning +ccpttest + pshs d,x + ldd DBUF0 ; get magic + cmpd #$4343 ; check for "CC" + lbne no@ + ldd DBUF0+2 ; check for "PT" + cmpd #$5054 + lbne no@ ; +no@ ldx #p0@ + jsr putscr + puls d,x,pc +p0@ fcn "CCPT not found." + + +;;; Setup Screen for os9 (sigh) +scrSetup + pshs d,x + ;; set colors: green on black + ldb #$12 + stb $ffbc + ldb #0 + stb $ffbd + ;; clear a screen's worth of video memory + ldb #$3b + stb $ffa0 + ldx #$0000 + ldd #$2020 +a@ std ,x++ + cmpx #$0400 + bne a@ + ;; set screen pointer up + ldd #8 + std SCRPTR + clr $ffa0 + puls d,x,pc + + +;;; Setup memory with gimme setting, aka Do os9's work :( +;;; takes: X = address +;;; returns: nothing +;;; modifies: nothing +gime + pshs d,x,u + ldu #table@ + lda #16 +a@ ldb ,u+ + stb ,x+ + deca + bne a@ + puls d,x,u,pc +table@ .dw $6c00 + .dw $0000 + .dw $0900 + .dw $0000 + .dw $0320 + .dw $0000 + .db $00 + .dw $ec01 + .db $00 + + + +;;; Read file into memory +;;; takes: X = address to load, file opened. +;;; modifies: nothing +fload pshs b,x +a@ jsr readb + bcs done@ + stb ,x+ + bra a@ +done@ puls b,x,pc + + + +;;; open a file via a name +;;; takes: X = filename (zero termed) +;;; returns: dirbuf set to file's FD, C set on error. +nopen + pshs d,x,u + ;; open root directory + ldx #root + ldu #LSN + jsr cpy3 + jsr open + ;; get a dirent into buffer + ldu 2,s ; U = filename +b@ lda #32 + ldx #dirbuf +a@ jsr readb + bcs nfound@ + stb ,x+ + deca + bne a@ + jsr os9toz + ldx #dirbuf + jsr strcmp + bcc found@ + bra b@ +nfound@ coma + puls d,x,u,pc +found@ clra + puls d,x,u,pc + + +;;; zero mem +;;; takes: X = ptr, B = number of byte to zero +;;; returns: nothing +;;; modifies: nothing +memz + pshs b,x +a@ clr ,x+ + decb + bne a@ + puls b,x,pc + + + +;;; strcmp +;;; takes: X = zstring, U = zstring +;;; returns: C clear if equal +strcmp + pshs b,x,u +a@ ldb ,x+ + cmpb ,u+ + bne ne@ ; not equal + tstb + beq e@ ; equal + bra a@ ; loop +e@ clrb + puls b,x,u,pc +ne@ comb + puls b,x,u,pc + +;;; change dirbuf's name to a z-string +os9toz + pshs b,x + ldx #dirbuf + tst ,x + beq out@ +a@ ldb ,x+ + bpl a@ + andb #$7f + stb -1,x + clr ,x +out@ puls b,x,pc + + +;;; Open file +;;; takes: LSN = lsn of file's FD +;;; returns: nothing +open + pshs d,x + ldx #DBUF1 ; load dbuf1 with file's FD + stx DPTR + jsr getlsn + ldd #DBUF1+$10 ; first segment + std sptr ; save ptr + jsr fill ; and get first sector + ;; set fcount + ldd DBUF1+FD.SIZ + std fcounth + ldd DBUF1+FD.SIZ+2 + std fcount + puls d,x,pc + +;;; get one byte from file +;;; takes: nothing, +;;; returns: B = byte, C set on EOF +readb + pshs a,x + ldd fcount ; is the entire file out of bytes? + beq eof@ + ldd bcount + bne a@ ; if left don't refill + ;; refill file's data buffer + jsr fill + ;; +a@ ldd fcount + subd #1 + std fcount + ldd bcount + subd #1 + std bcount + ldx dptr + ldb ,x+ + stx dptr + clra + puls a,x,pc +eof@ coma + puls a,x,pc + + +fill + pshs d,x,u ; save regs + jsr spin1 + ldx sptr + ldd 3,x ; get sector count + bne a@ ; no more secs left in seg? + ;; get next segment + ldx sptr + leax 5,x + stx sptr + ;; fill buffer +a@ ldx sptr ; copy segment's LSN to args + ldu #LSN ; + jsr cpy3 ; + ldx #DBUF0 ; set data buffer + stx DPTR ; + jsr getlsn ; and get the sector + ;; increment segment + ldx sptr ; increment segment's LSN + jsr inc3 ; + ldd 3,x ; decrement segment's sector count + subd #1 ; + std 3,x ; + ;; set file dirs + ldd #256 + std bcount + ldd #DBUF0 + std dptr + puls d,x,u,pc ; return + + +;;; Spin the ticker +;;; takes: nothing +;;; returns: nothing +;;; modifies: nothing +spin1 + pshs b + ldb #'. + jsr putc + puls b,pc + + +;;; Copy 3 bytes value +;;; take: X = src ptr, U = dst ptr +;;; modifies: nothing +cpy3 + pshs d,x,u + ldd ,x++ + std ,u++ + ldb ,x + stb ,u + puls d,x,u,pc + + +;;; increment 3 byte value by one +;;; takes: X = ptr to 3 bytes +;;; returns: nothing +inc3 + pshs d,x + ldd 1,x + addd #1 + std 1,x + ldb ,x + adcb #0 + stb ,x + puls d,x,pc + + +;;; deblocker to translate 256B LSN to a 512B LSN +;;; takes: args in LSN/DPTR +;;; modifies: nothing +getlsn + pshs b,x + ldx #LSN ; get pointer + lsr ,x+ + ror ,x+ + ror ,x+ + ldb #1 ; 256b lower read + bcc a@ + negb +a@ stb SMALL + jsr ll_read + puls b,x,pc + + + +;;; Dump 128 byte to screen +;;; takes: X = ptr to data +;;; modifies: nothing +dump + pshs d,x + jsr putCR + lda #8 + pshs a ; put row counter +b@ lda #8 ; column counter + pshs x +a@ ldb ,x+ + jsr putb + jsr putSP + deca + bne a@ + puls x + clr 8,x + jsr putscr + dec ,s + bne b@ + leas 1,s + puls d,x,pc + +;;; Print a Space +putSP + pshs b + ldb #SP + jsr putc + puls b,pc + + +;;; Print a CR +putCR + pshs d + ldb #$3b + stb $ffa0 + ldd SCRPTR + addd #32-8 + andb #~$1f + addd #8 + std SCRPTR + clr $ffa0 + puls d,pc + + +;;; Print a Z string +;;; takes: X = ptr to string +;;; modifies: nothing +puts + pshs b,x +a@ ldb ,x+ + beq done@ + jsr putc + bra a@ +done@ puls b,x,pc + +;;; Print a 3 byte value ( in hex ) +;;; takes: X = ptr to value +;;; modifies: nothing +put3 + pshs d,x + ldd ,x++ + jsr putw + ldb ,x + jsr putb + puls d,x,pc + + +;;; Print a word ( in hex) +;;; takes: D = word +;;; modifies: nothing +putw + pshs b + tfr a,b + bsr putb + puls b + bsr putb + rts + +;;; Print a byte (in hex) +;;; takes: B = byte +;;; modifies: nothing +putb + pshs d + lsrb + lsrb + lsrb + lsrb + bsr putn + ldb 1,s + bsr putn + puls d,pc + +;;; Print a Char +;;; takes: B = charactor +;;; modifies: nothing +putc + pshs d,x + lda #$3b ; put 3b in bank 0 + sta $ffa0 + ldx SCRPTR + stb ,x+ + stx SCRPTR + clr $ffa0 ; put 0 in bank 0 + puls d,x,pc + + +;;; Print a nibble +;;; takes: B = nibble +;;; modifies: nothing +putn + pshs b + andb #$f + addb #$30 + cmpb #$39 + bls a@ + addb #7 +a@ jsr putc + puls b,pc + + +;;; Print a string followed by a CR +;;; takes: X = zero termed string +;;; returns: nothing +;;; modifies: nothing +putscr + jsr puts + jsr putCR + rts + + + + include "sd.asm" + +ende equ * + + + end prestart \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/3rdparty/utils/fpgarom/test.lnk Sat Feb 04 18:54:49 2017 +0100 @@ -0,0 +1,6 @@ +define basesympat start%s +define lensympat length%s +section .bss load 1000 +section bounce +section .code load 2000 +entry prestart \ No newline at end of file
--- a/3rdparty/utils/makefile Sat Feb 04 18:33:07 2017 +0100 +++ b/3rdparty/utils/makefile Sat Feb 04 18:54:49 2017 +0100 @@ -1,6 +1,6 @@ include ../../rules.mak -dirs = boisy dasm smartwatch supercomm dladd winfo gene tlindner +dirs = boisy dasm smartwatch supercomm dladd winfo gene tlindner fpgarom # Make all components all: