the _pointer is a 16-bit variable, and stm8 is big endian. you might need ld y, _pointer addw y, #1 ld _pointer, y
to replace inc _pointer r...@remi.lu编写： > > >hello > >with this code i get printed : "t3333333...." > >you think the X register gets polluted by the delay fonction ? > >Regards > >Le 26.09.2014 04:11, Ben Shi a écrit : > >> I am not sure how your function _lcdwritechar works, but I guess you might >> need such kind of code, >> >> .area DATA >> >> _varOne: >> >> .ds 1 >> >> _lcdchar: >> >> .ds 1 >> >> _pointer: >> >> .ds 1 >> >> ..... >> >> ldw x, #_string_0 >> >> ldw _pointer, x >> >> main_loop: >> >> LDW X, #0d50 >> >> CALL delay_m >> >> CALL ledon >> >> LDW X, #0d50 >> >> CALL delay_m >> >> CALL ledoff >> >> ldw x, [_pointer.w] >> >> ldw _lcdchar, x >> >> call _lcdwritechar >> >> inc _pointer >> >> JP main_loop >> >> .... >> >> .area CODE >> >> _string_0: >> >> .ascii "toto" >> >> .db 0x00 >> >> First, the variable _pointer is initialized to point to _string_0; second, >> in each iteration of the main loop, the content pointed by _pointer is moved >> to _lcdchar; third, _pointer increases each time. >> >> 在2014年09月25 23时32分，"remi"<r...@remi.lu>写道： >> >>> Hello >>> >>> I have spent a few years with MChip, I switched to stm8 recently. >>> >>> One of the reasons is pointer handeling (pic16 and 18) very limited ... >>> >>> and now, I am almost learning two things in the same time, STM8 and sdasm . >>> >>> Can some one direct me a little on how pointers are beeing >>> >>> used in sdasstm8 ? >>> >>> in this snipet, i am trying to go trhu a string and print it ... >>> >>> no luck so far, only the "t" is printed . >>> >>> I have already went thru sdccman.pdf ... but it mostly talk about its C and >>> inline assembly , >>> >>> and stm8 axemples elsewhere are for other assemblers ... :) >>> >>> my goal , is to write 100% assembly code . >>> >>> Best regards >>> >>> .area DATA >>> _varOne: >>> .ds 1 >>> _lcdchar: >>> .ds 1 >>> >>> ..... >>> >>> main_loop: >>> >>> LDW X, #0d50 >>> CALL delay_m >>> CALL ledon >>> >>> LDW X, #0d50 >>> CALL delay_m >>> CALL ledoff >>> >>> mov _lcdchar,string_0 >>> call _lcdwritechar >>> inc [string_0] >>> >>> JP main_loop >>> >>> .... >>> >>> .area CODE >>> string_0: >>> .ascii "toto" >>> .db 0x00 >>> >>> .area INITIALIZER >>> .area CABS (ABS) >> >> ------------------------------------------------------------------------------ >> Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer >> Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports >> Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper >> Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer >> http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk >> [1] >> >> _______________________________________________ >> Sdcc-user mailing list >> Sdcc-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/sdcc-user [2] > > > >Links: >------ >[1] >http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk >[2] https://lists.sourceforge.net/lists/listinfo/sdcc-user > >------------------------------------------------------------------------------ >Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer >Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports >Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper >Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer >http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk >_______________________________________________ >Sdcc-user mailing list >Sdcc-user@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/sdcc-user ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
