[Hp48xgcc] [hp48xgcc - Open Discussion] HP48xgcc wire

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By: juanca_mm

Hello , a few time ago I discovered the HP48xgcc, I have the hp48xgcc-1.0.2-win32-bin
version but I have had a lot of problems:

*First when I copy from C:\usr\lib\gcc-lib\saturn-local-hp48\2.7.2\hp48
 the libc.slo to C:\usr\lib\gcc-lib\saturn-local-hp48\2.7.2\ I can execute
 the HELLO sample but the compiler doesn´t recognize the PUSH comand:
 
 I have used the line:
 xgcc uno.c -o uno -Wall -O2 -lc -lcore -lgcc -lgraph -lm -lmalloc
 
 And the result is:
 uno.c: In function `main':
 uno.c:22: warning: implicit declaration of function `push'
 ERROR: unable to resolve symbol '_push',
        referenced by object-file 'C:\WINDOWS\TEMP/ccaaaaaa1.o'
 linkage failed due to unresolved references



 When I let the original libc.slo in
C:\usr\lib\gcc-lib\saturn-local-hp48\2.7.2 the compiler recognizes PUSH but gives a warnig:
 
 uno.c: In function `main':
 uno.c:22: warning: implicit declaration of function `push'
 
 However PUSH doesn´t work and the HELLO sample doesn´t do anything (I try
 to push in the stack the string "HELLO") and I tried to run quadtest but
 I haven´t being enable to do It.
 
 *Second, How I can run an external program, for instance a SysRPL 
  program, I tried to do It with a HP object(like in HELLO.C) but I can´t
  make  It works.
 
 *Third, is there some way to send or receive data through wire port, IR port?,
  something like OUTPORT(), OUTPORTB(), INPORT() or INPORTB().
  
 *Fourth where I can get a manual for HP48xgcc, I have been in:
  Project: HP48 GNU C Cross-Compiler: Forums: but I have not seen a manual
  or a tutorial.
  
 *Fifth, for compile input.s (it has only 2 routines, is not a program)
  I use the line:
  xgcc -o input -lc -lcore -lgcc -lgraph -lm -lmalloc -Wall -O2 -I input.s
  
  And the out is: 
  ERROR: unable to resolve symbol '_main',
         referenced by object-file 'crt0.o'
  linkage failed due to unresolved references
  
 *Sixth, I don´t  understand the assembler language used in HP48xgcc, is 
  Saturn assembler? or x86 assembler or a mix, where I can get information 
  about it?
  
 *Seventh is there other subrotines to control the keyboard apart from 
  INPUT.S
 
 
  Thanks in advance for some help and excuse me for my english It isn´t my 
  native language.
  Juan Carlos Montaña Malagón.


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