;********************************************************************* ; includes ;********************************************************************* .incdir "F:\git\goldmomo_endlos\assembler_files\ucore\" .include "include\ucore_ctrl.i" ;*********************************************************************** ;* reset start ;*********************************************************************** .org 0 .def cmdToReciveWait 9 ;*********************************************************************** ;* user code start ;*********************************************************************** userLevel nop nop nop nop nop gpci r7,2 ;next 4 + X br setupVideo nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot gpci r7,2 br sleep movei r0,9 ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD0 reset -> no respons gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,0 ;cmd0 delay slot movei r1,0 ;arg low delay slot movei r2,0 ;arg high delay slot movei r3,0 ;48 bit delay slot gpci r7,2 br sleep movei r0,cmdToReciveWait ;2ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD8 reset -> ignore response movei r3,0 ;48 bit gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,8 ;cmd0 delay slot movei r1,$aa ;arg low delay slot movei r2,0 ;arg high delay slot moveih r1,1 ;2.7-3.6V delay slot gpci r7,2 br sleep movei r0,cmdToReciveWait ;2ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- loop bingup while busy movei r7,$ff ;max 256 times nop bringupSDBusy push r7 ;-- gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD55 (switch to app) -> check respons ;send gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,55 ;cmd55 delay slot movei r1,0 ;arg low delay slot movei r2,0 ;arg high delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,55 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- ACMD41 (bringup) -> check respons ;-- gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;send movei r0,41 ;cmd41 movei r1,0 ;arg low movei r2,$ff ;VALL arg high moveih r1,0 ;arg low moveih r2,$40 ;HCS arg high movei r3,0 ;48 bit gpci r7,2 ;next 4 + X br sdCardSendCmd nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] ;r2 = recived arg low ;r3 = recived arg high movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,41 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ; rqpop nop nop pop r7 ;busy count ;test busy flag extri r3,15 ;MSB in high result brts bringupSDFinished ;not busy nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;its busy so try again subi r7,1 brts bringupSDBusy nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;time out for CMD55, ACMD41 gpci r7,2 ;next 4 + X br drawText movei r0,stringErrorEverBusy ;delay slot movei r1,0 ;delay slot moveih r0,>stringErrorEverBusy ;delay slot movei r2,0 ;delay slot br loop nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot bringupSDFinished ;r3 = bit 14 = 1 then SDHC movei r0,isSDHC movei r4,0 moveih r0,>isSDHC movei r5,1 extri r3,14 ;sdhc? movets r4,r5,r4 nop st r0,r4 ;save for reader ;-- push r2 push r3 gpci r7,2 ;next 4 + X br drawText movei r0,stringCCS ;delay slot movei r1,0 ;delay slot moveih r0,>stringCCS ;delay slot movei r2,1 ;delay slot rqpop rqpop nop nop ;card is read \o/ gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD2 (get CID) -> check respons ;send gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,2 ;cmd2 delay slot movei r1,0 ;arg low delay slot movei r2,0 ;arg high delay slot movei r3,1 ;136 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,2 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;print cid rqldi r5,7 rqldi r5,6 rqldi r5,5 ld r0 ld r1 ld r2 push r0 push r1 push r2 rqldi r5,4 rqldi r5,3 rqldi r5,2 ld r0 ld r1 ld r2 push r0 push r1 push r2 rqldi r5,1 rqldi r5,0 nop ld r0 ld r1 push r0 push r1 gpci r7,2 ;next 4 + X br drawText movei r0,stringCID ;delay slot movei r1,0 ;delay slot moveih r0,>stringCID ;delay slot movei r2,2 ;delay slot rqpop rqpop rqpop rqpop rqpop rqpop rqpop rqpop nop nop nop ;get relative address gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD3 (get RCA) -> check respons ;send gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,3 ;cmd3 delay slot movei r1,0 ;arg low delay slot movei r2,0 ;arg high delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,3 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;r3 = high 16 bit is RCA movei r0,cardRCA nop moveih r0,>cardRCA nop st r0,r3 ;store rca push r3 ;print rca gpci r7,2 ;next 4 + X br drawText movei r0,stringRCA ;delay slot movei r1,0 ;delay slot moveih r0,>stringRCA ;delay slot movei r2,3 ;delay slot rqpop nop nop nop ;select card gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;get CSD gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD9 (get CSD) -> check respons movei r0,cardRCA nop moveih r0,>cardRCA nop rqldi r0,0 nop nop ld r2 ;arg high ;send gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,9 ;cmd9 delay slot movei r1,0 ;arg low delay slot nop ;arg high delay slot movei r3,1 ;136 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,2 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;print cid rqldi r5,7 rqldi r5,6 rqldi r5,5 ld r0 ld r1 ld r2 push r0 push r1 push r2 rqldi r5,4 rqldi r5,3 rqldi r5,2 ld r0 ld r1 ld r2 push r0 push r1 push r2 rqldi r5,1 rqldi r5,0 nop ld r0 ld r1 push r0 push r1 gpci r7,2 ;next 4 + X br drawText movei r0,stringCSD ;delay slot movei r1,0 ;delay slot moveih r0,>stringCSD ;delay slot movei r2,4 ;delay slot rqpop rqpop rqpop rqpop rqpop rqpop rqpop rqpop nop nop nop ;------------------- CMD7 (select card) -> check respons ;sleep gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;send movei r0,cardRCA nop moveih r0,>cardRCA nop rqldi r0,0 nop nop ld r2 ;arg high gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,7 ;cmd3 delay slot movei r1,0 ;arg low delay slot nop ;delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,7 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;------------------- CMD16 (select block length) -> check respons ;sleep gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;send movei r1,0 gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,16 ;cmd delay slot moveih r1,$2 ;arg low delay slot movei r2,0 ;arg high delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,16 ;delay slot nop ;delay slot nop ;delay slot nop ;------------------- CMD55 with rca (to app) -> check respons ;sleep gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot movei r0,cardRCA nop moveih r0,>cardRCA nop rqldi r0,0 nop nop ld r2 ;arg high ;send gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,55 ;cmd delay slot movei r1,0 ;arg low delay slot nop ;arg high delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,55 ;delay slot nop ;delay slot moveih r1,2 ;delay slot nop ;------------------- ACMD6 (set bus width) -> check respons ;sleep gpci r7,2 br sleep movei r0,cmdToReciveWait ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;send gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,6 ;cmd delay slot movei r1,2 ;arg low (4bit) delay slot movei r2,0 ;arg high delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,6 ;delay slot nop ;delay slot moveih r1,0 ;delay slot nop ;sleep gpci r7,2 br sleep movei r0,0 ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;enable burst ;---- now burst the data movei r5,$10 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base + $10 nop esadr r6,r5 movei r1,$0 movei r0,$0 moveih r1,$f0 ;r1:r0 = $f000 0000 movei r2,2 ;enable burst est r0,2 ;low est r1,3 ;high est r2,0 ;enable burst (push total fifo out) ;-- clear blk count movei r5,blockOffset movei r0,0 moveih r5,>blockOffset moveih r0,$0 movei r1,0 nop st r5,r1 addi r5,1 nop st r5,r0 ;648192 bytes = 1266 * 512 movei r7,$f1 nop moveih r7,$4 nop gfxLoop push r7 ;------------------- CMD17 (read single block) -> check respons ;reset reciver movei r5,$10 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base + $15 movei r0,3 ;reset reciver , burst enable esadr r6,r5 est r0,0 ;sleep gpci r7,2 ;br sleep movei r0,0 ;10ms delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;send movei r5,blockOffset nop moveih r5,>blockOffset nop rqldi r5,0 rqldi r5,1 nop ld r2 ;high ld r1 ;low gpci r7,2 ;next 4 + X br sdCardSendCmd movei r0,17 ;cmd delay slot nop ;arg low delay slot nop ;arg high delay slot movei r3,0 ;48 bit delay slot ;recive gpci r7,2 ;next 4 + X br sdCardReciveCmd movei r1,$ff ; delay slot nop ; delay slot moveih r1,$ff ;65536 = timeout delay slot nop ; delay slot ;test recive result [ r0 = status (4 = ok | 2 = error | 1 = timeout) ] movei r7,3 nop and r0,r0,r7 ;error / time out nop cmpeqi r0,0 brtc sdError movei r1,6 ;delay slot nop ;delay slot moveih r1,0 ;delay slot nop ;wait for transfer finish movei r5,$10 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base + $10 nop esadr r6,r5 waitReadFinish erqldi 0 eld r0 nop cmpeqi r0,$f brtc waitReadFinish nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;-- check fifos <8192-512 movei r5,$15 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base + $15 nop esadr r6,r5 waitFifoLoad erqldi 0 erqldi 1 erqldi 2 erqldi 3 eld r0 eld r1 eld r2 eld r3 cmplo r0,r1 ;r0blockOffset moveih r6,>isSDHC rqldi r5,0 rqldi r5,1 rqldi r6,0 ld r2 ;high ld r1 ;low ld r0 ;0 = SDSC , 1 = SDHC movei r3,$0 movei r4,$1 ;1 -- block for sdhc moveih r3,$2 ;512 -- bytes for sdsc cmpeqi r0,0 movets r3,r3,r4 ; nop add r1,r1,r3 addtqi r2,r2,0 nop st r5,r2 ;high addi r5,1 ; nop st r5,r1 ;low ; rqpop nop nop pop r7 nop subi r7,1 brts gfxLoop nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;no error check return loop br loop nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot isSDHC word 0 blockOffset word 0 word 0 cardRCA word 0 ;-------------------------- sdError push r1 push r0 gpci r7,2 ;next 4 + X br drawText movei r0,stringErrorCmd ;delay slot movei r1,0 ;delay slot moveih r0,>stringErrorCmd ;delay slot movei r2,12 ;delay slot br loop nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot stringErrorCmd .string "error %x at cmd %x .. stop" word 0 stringErrorEverBusy .string "sdcard get not ready" word 0 stringCCS .string "ccs %x%x" word 0 stringCID .string "cid %x %x %x %x %x %x %x %x" word 0 stringCSD .string "csd %x %x %x %x %x %x %x %x" word 0 stringRCA .string "rca %x" word 0 stringStatusFIFO .string "status fifo %x" word 0 stringRFIFO .string "recive fifo D1=%x D2=%x D3=%x D4=%x" word 0 stringTestBuffer .string "%x" word 0 ;****************************** ;* ;* sdCardSendCmd ;* ;* r0 = cmd ;* r1 = arg low ;* r2 = arg high ;* r3 = 0 -> set reciver to 48bit / 1 -> set reciver to 136 bit ;* ;* sdCardSendCmd push r5 push r6 movei r5,$00 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base moveih r0,2 ;reset $0002 CMDX swp r3,r3 ;r3 = 000x 0000 esadr r6,r5 muli r3,4 ;reset first (reset read after write) est r0,0 ;reset ; moveih r0,1 ;start $0001 CMDX est r1,3 ;low argument or r0,r0,r3 ;add reciver mode est r2,2 ;high argument est r0,0 ;cmd + start est r0,7 ;write sync (to wait for real startup) est r0,7 est r0,7 rqpop rqpop jmpi r7,0 pop r6 ;delay slot pop r5 ;delay slot nop ;delay slot nop ;delay slot ;****************************** ;* ;* sdCardReciveCmd ;* ;* r1 = timeout count -1 ;* ;* return ;* ;* r0 = status (4 = ok | 2 = error | 1 = timeout) ;* r1 = recived cmd ;* r2 = recived arg low ;* r3 = recived arg high ;* r4 = expected crc, recived crc ;* r5 = ptr to 8 words (full data recived if mode is 136 bit) ;* sdCardReciveCmd push r6 movei r5,$00 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base nop esadr r6,r5 ;wait for respons sdCardReciveCmdRead erqldi 0 ;status movei r4,6 ;110 eld r0 ;RO RE SP (Recive Ok, Recive Error, Send in Progress) nop and r0,r0,r4 nop cmpeqi r0,0 ;if not 'not' ok or error retry brtc sdCardReciveCmdFinish nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot subi r1,1 brts sdCardReciveCmdRead nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;timeout addi r0,1 ;set timeout in status sdCardReciveCmdEpilog rqpop jmpi r7,0 movei r5,sdCardReciveCmdFullDataBuffer ;delay slot pop r6 ;delay slot moveih r5,>sdCardReciveCmdFullDataBuffer ;delay slot nop ;delay slot sdCardReciveCmdFinish ;* r1 = recived cmd ;* r2 = recived arg low ;* r3 = recived arg high ;* r4 = expected crc, recived crc ;* r5 = ptr to 8 words (full data recived if mode is 136 bit) ;get 48 bit values ;erqldi 3 ;cmd erqldi 3 ;arg low erqldi 2 ;arg high erqldi 1 ;ecrc crc or r1,r0,r0 nop lsri r1,8 movei r5,$02 movei r6,$00 moveih r5,$00 moveih r6,$A0 ;sd card base + 2 ;eld r1 eld r2 eld r3 eld r4 esadr r6,r5 ;base for 136bit mode movei r5,sdCardReciveCmdFullDataBuffer erqldi 0 moveih r5,>sdCardReciveCmdFullDataBuffer erqldi 1 erqldi 2 erqldi 3 erqldi 4 erqldi 5 erqldi 6 erqldi 7 push r7 movei r7,7 sdCardReciveCmdReadLongArg eld r6 ;127 .. 112 subi r7,1 brts sdCardReciveCmdReadLongArg st r5,r6 ;delay slot addi r5,1 ;delay slot nop ;delay slot nop ;delay slot rqpop br sdCardReciveCmdEpilog nop ;delay slot pop r7 ;delay slot nop ;delay slot nop ;delay slot sdCardReciveCmdFullDataBuffer .space 8 ;****************************** ;* ;* sleep ;* ;* r0 = (cnt in ms) -1 ;* ;* sleep push r1 sleepLoopOut movei r1,$4c nop moveih r1,$45 nop sleepLoopIn subi r1,1 brts sleepLoopIn nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot subi r0,1 brts sleepLoopOut nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot rqpop jmpi r7,0 nop ;delay slot pop r1 ;delay slot nop ;delay slot nop ;delay slot ;****************************** ;* ;* drawText ;* ;* r0 text ;* r1 x ;* r2 y drawText push r0 push r1 push r4 push r6 push r7 getsp r6,5 or r4,r0,r0 ;text address to r4 nop textLoop rqldi r4,0 nop nop ld r0 nop cmpeqi r0,0 brts textLoopEnd addi r4,1 ;next char delay slot nop ;delay slot nop ;delay slot nop ;delay slot cmpeqi r0,37 ;% brts textProcessCmd nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot gpci r7,2 ;next 4 + X br drawChar subi r0,32 ;map visible delay slot nop ;delay slot nop ;delay slot nop ;delay slot addi r1,1 textProcessCmdReturn br textLoop nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot textLoopEnd rqpop rqpop rqpop pop r7 pop r6 pop r4 rqpop rqpop jmpi r7,0 pop r1 ;delay slot pop r0 ;delay slot nop ;delay slot nop ;delay slot ;processing cmd string textProcessCmd rqldi r4,0 ;get next char nop nop ld r0 nop cmpeqi r0,37 ;% again so print it brts textProcessCmdProzent nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot cmpeqi r0,99 ;c -> char brts textProcessCmdChar nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot cmpeqi r0,120 ;x -> hex brts textProcessCmdHex nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot br textProcessCmdReturn nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;%% textProcessCmdProzent gpci r7,2 ;next 4 + X br drawChar subi r0,32 ;map visible delay slot nop ;delay slot nop ;delay slot nop ;delay slot addi r1,1 br textProcessCmdReturn nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;%c textProcessCmdChar rqldi r6,0 addi r6,1 ;next value if exist nop ld r0 gpci r7,2 ;next 4 + X br drawChar subi r0,32 ;map visible delay slot nop ;delay slot nop ;delay slot nop ;delay slot addi r4,1 addi r1,1 br textProcessCmdReturn nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;%x textProcessCmdHex push r5 push r3 rqldi r6,0 addi r6,1 ;next value if exist nop ld r5 movei r3,3 ;3 hex digits textProcessCmdHexLoop or r0,r5,r5 nop lsri r0,12 nop cmploi r0,10 brts textProcessCmdHexNoABCDEF nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot addi r0,7 textProcessCmdHexNoABCDEF gpci r7,2 ;next 4 + X br drawChar addi r0,16 ;map visible +48-32 delay slot nop ;delay slot nop ;delay slot nop ;delay slot subi r3,1 brts textProcessCmdHexLoop addi r1,1 ;x++ delay slot muli r5,16 ;r5 << 4 delay slot nop ;delay slot nop ;delay slot rqpop rqpop br textProcessCmdReturn pop r3 ;delay slot pop r5 ;delay slot addi r4,1 ;next input char delay slot nop ;delay slot ;****************************** ;* ;* drawChar ;* ;* r0 value ;* r1 x ;* r2 y ;* ;* trash r0 drawChar push r1 push r2 push r3 push r4 push r5 push r6 ;destination base (sram base 0) muli r1,8 movei r4,$00 ;destination movei r5,$00 moveih r4,$00 moveih r5,$f0 ;p(0,0) = f000 0000 add r4,r4,r1 addtqi r5,r5,0 movei r1,$00 nop moveih r1,$2d ;720*16 nop mul r1,r1,r2;*y gmulhi r2 add r4,r4,r1 addt r5,r5,r2 ;font source movei r2,$68 ;source movei r3,$01 moveih r2,$50 moveih r3,$e0 ;p(0,0) = e001 5068 muli r0,8 ;value * 8 nop add r2,r2,r0 ;source addtqi r3,r3,0 ; ; movei r0,15 ;16 [y] dcYloop movei r1,7 ;8 [x] dcXloop esadr r3,r2 erqldi 0 eld r6 nop extri r6,15 brts dcNoTransp nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot movei r6,0 dcNoTransp esadr r5,r4 est r6,0 subi r1,1 ;x- brts dcXloop addi r4,1 ;delay slot addtqi r5,r5,0 ;delay slot addi r2,1 ;delay slot addtqi r3,r3,0 ;delay slot ; movei r1,$c8 nop moveih r1,$2 ;r1 = 720-8 nop add r4,r4,r1 ;dest + 720-8 addtqi r5,r5,0 ; movei r1,$e8 nop moveih r1,$2 ;r1 = 752-8 nop subi r0,1 ;y- brts dcYloop add r2,r2,r1 ;source + 752-8 delay slot addtqi r3,r3,0 ; delay slot nop ;delay slot nop ;delay slot ; rqpop rqpop rqpop pop r6 pop r5 pop r4 rqpop nop nop pop r3 rqpop rqpop jmpi r7,0 pop r2 ;delay slot pop r1 ;delay slot nop ;delay slot nop ;delay slot ;****************************** ;* ;* r0 value ;* r1 count-1 (8 words)) ;* r3:r2 dest ; memset clearLoop esadr r3,r2 est r0,0 est r0,1 est r0,2 est r0,3 est r0,4 est r0,5 est r0,6 est r0,7 subi r1,1 brts clearLoop addi r2,8 ;delay slot addtqi r3,r3,0 ;delay slot nop ;delay slot nop ;delay slot jmpi r7,0 nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;****************************** ;* ;* setupVideo ;* setupVideo push r7 movei r0,videoDefault ;source movei r1,UcTimer2Ctrl ;dest-1 moveih r0,>videoDefault moveih r1,>UcTimer2Ctrl movei r2,26 ;27-1 setupVideoLoop rqldi r0,0 addi r0,1 addi r1,1 ld r3 subi r2,1 brts setupVideoLoop st r1,r3 ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ; clear screen movei r2,$00 ;destination movei r3,$00 moveih r2,$00 moveih r3,$f0 ;p(0,0) = f000 0000 gpci r7,2 ;next 4 + X br clearLoop movei r1,$33 ; count delay slot movei r0,$00 ; value delay slot moveih r1,$9e ; count delay slot nop ; delay slot rqpop nop nop pop r7 nop jmpi r7,0 nop ;delay slot nop ;delay slot nop ;delay slot nop ;delay slot ;********************************************************************* ;* data ;********************************************************************* videoDefault ;AD NAME NEW DEFAULT word $0001 ;10 VIDEO_ON 1 1 (ON) word $0097 ;11 HSYNC (D = 11 .. 0) 152-1 152-1 word $017f ;12 HSTART (D = 11 .. 0) 384-1 384-1 word $017d ;13 HMEMSTART (D = 11 .. 0) 382-1 382-1 word $071f ;14 HSTOP (D = 11 .. 0) 1824-1 1824-1 word $076f ;15 HTOTAL (D = 11 .. 0) 1904-1 1904-1 word $0002 ;16 VSYNC (D = 10 .. 0) 3-1 3-1 word $001e ;17 VSTART (D = 10 .. 0) 31-1 31-1 word $03a2 ;18 VSTOP (D = 10 .. 0) 931-1 931-1 word $03a3 ;19 VTOTAL (D = 10 .. 0) 932-1 932-1 word $0000 ;1a LC ADDER LOW $0000 $0000 word $0080 ;1b LC ADDER HIGH $0080 $0040 word $0000 ;1c LC ADDER LATCH X X word $0000 ;1d LC START (10 .. 0) Pixeloffset $0000 $0000 word $0000 ;1e X X word $0000 ;1f X X word $0008 ;20 HLOADSTART 8 8 word $0170 ;21 HLOADSTOP 360+8 180+8 word $001e ;22 VLOADSTART 31-1 31-1 word $03a2 ;23 VLOADSTOP 931-1 931-1 word $0002 ;24 VLOADNEXT 2 4 word $0000 ;25 MEM_STARTADR_store low $0000 $0000 word $f000 ;26 MEM_STARTADR_store high $f000 $f000 word $0000 ;27 MEM_LINEOFFSET_store low $0000 $0000 word $0000 ;28 MEM_LINEOFFSET_store high $0000 $0000 word $0002 ;29 MEM_MODE_store 2 2 (X1R5G5B5X1R5G5B5) word $0000 ;2a LATCH MEM_STARTADR/LINEOFFSET/MODE X X