Re: [Sdcc-user] sdcc cannot compile simple code??? (Z80)

[Erik P. <epe...@iv...>]

On Sat, 13 Dec 2003, Jesus Calvino-Fraga wrote:

> Maybe the problem is with the dissasembler you are using.  The final result 
> after compiling and linking foo.c includes the relocatable code generated 
> after assembling crt0.s (probably in sdcc\lib\z80).  When I run the 
> resulting code using uCsim for the z80 this is the result:
> 
(some output truncated)
> SZ-A--P-C  Flags= 0x00   0 .  A= 0x00   0 .
> 00-0--0-0
> BC= 0x0000 [BC]= c3 195 .  DE= 0x0000 [DE]= c3 195 .  HL= 0x0000 [HL]= c3 195 .
> IX= 0x0000 [IX]= c3 195 .  IY= 0x0000 [IY]= c3 195 .  SP= 0xfffd [SP]= 09   9 .
>   ? 0x020a db 02       IN    A,(#0x02)
> 0> s
> SZ-A--P-C  Flags= 0x00   0 .  A= 0x00   0 .
> 00-0--0-0
> BC= 0x0000 [BC]= c3 195 .  DE= 0x0000 [DE]= c3 195 .  HL= 0x0000 [HL]= c3 195 .
> IX= 0x0000 [IX]= c3 195 .  IY= 0x0000 [IY]= c3 195 .  SP= 0xfffd [SP]= 09   9 .
>   ? 0x020b 02          LD    (BC),A
> 0> s
> SZ-A--P-C  Flags= 0x00   0 .  A= 0x00   0 .
> 00-0--0-0
> BC= 0x0000 [BC]= 00   0 .  DE= 0x0000 [DE]= 00   0 .  HL= 0x0000 [HL]= 00   0 .
> IX= 0x0000 [IX]= 00   0 .  IY= 0x0000 [IY]= 00   0 .  SP= 0xfffd [SP]= 09   9 .
>   ? 0x020c af          XOR   A

Looks like ucSim is a little buggy too; the program counter should have
advanced directly from 0x020a to 0x020c.

  Erik