[sdcc-devel] [ sdcc-Bugs-1160666 ] z80 interrupt issues

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Bugs item #1160666, was opened at 2005-03-10 15:55
Message generated for change (Comment added) made by maartenbrock
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Category: z80 port
>Group: fixed
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Maarten Brock (maartenbrock)
Summary: z80 interrupt issues

Initial Comment:
z80 interrupt doesn't include ei before reti/retn

_naked interrupt on z80 includes reti/retn when docs
say user must provide reti/retn.

SDCC :
mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08
2.4.8 #967 (Mar  6 2005) (MINGW32)

void our_isr (void) interrupt _naked
{

/*    _asm
        ei
        reti
    _endasm;*/
}

   000B                     131 _our_isr_start::
   000B                     132 _our_isr:
                            133 ;main.c:77: }
                            134 ;	genLabel
   000B                     135 00101$:
                            136 ;	genEndFunction
   000B ED 4D               137 	reti
   000D                     138 _our_isr_end::


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>Comment By: Maarten Brock (maartenbrock)
Date: 2006-03-24 16:30

Message:
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user_id=888171

Fixed in SDCC 2.5.5 #1229.

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Comment By: Willy De la Court (wdlc)
Date: 2005-03-10 16:02

Message:
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user_id=755263

i'v posted a patch for the critical keyword that fixes the 
ei problem see patch 1120823 but nobody seems 
interested since it's not applied to the code base. 

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