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Issue #1 was caused because code_name and data_name had been incorrectly
defined as const-qualified pointers, but this must be an exception for
the z80 backend, as stated by the comments.
Issue #2 has been solved by removing the --gas switch from SDCCmain.c,
renaming it to "--asm=" (as requested by PKK) and moved to STM8's main.c,
so the option is limited to those targets supporting it.
Issue #4 was because of SDCCglue.c, that generated local labels using
"!labeldef" instead of "!slabeldef", causing those __str_%d labels to be
printed as "__str_%d::" (the double colons stand for globa label according
to asxxx documentation) instead of "__str_%d":".
I ran the regression tests and most of them passed, but "wchar" returned another
"Multiple definition of..." error that I cannot explain so far. It is better than
nothing, though.
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Memory addresses should be preceded by '#' when referring to them as integers
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Stack pointer setup is removed since it is already set to 0x3FF
for the STM8S003F3/K3, according to the datasheet.
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GNU as does not support the #</#> notation asxxx uses to determine
address LSB and MSB. Instead, two instructions have been created on
GNU as and ld (see my stm8-binutils-gdb fork) for this purpose.
On the other hand, I'm upset to see gen.c does not provide an
assembler-agnostic implementation when SDCCasm.c already provides
tools already meant for this.
OTOH, support for the "-C" has been added for --gas.
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STM8 code generator was generating some instructions in a
"ld register, (#%d, register)" way, causing assembling errors on
stm8-as. This is because stm8-as does not require the '#' character.
A quick and dirty workaround has been implemented for this.
Added new warning W_IGNORED_OPT_IN_ASM, which warns the user when
both "--no-optsdcc-in-asm" and "--gas" are used (the first is ignored
when the latter is active since GNU as does not accept the .optsdcc
directive, as opposed to asxxx).
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stm8/main.c: 0x8000 must contain the entry point aka "_start" for GNU as.
Some work on supporting debugging symbols with --gas. Not finished yet.
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Interrupt vector must be placed on section .vectors, according to
the default linker script file.
Intermediate labels must be $-terminated so they are not listed by nm.
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A new (untested) startup routine has been written for GNU as.
Section names have been considered from stm8-binutils linker script.
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On _gas_mapping, label definitions do not allow "::". ":" must be
used instead.
gasOutput is now part of "options".
Unneeded sections, such as HOME/GSINIT/etc., are no longer declared
and/or defined. GNU as just does not need them.
Startup function name must equal "_start" for GNU ld.
The value of some macros, such as CODE_NAME or DATA_NAME, must change
according to options.gasOutput, as "CODE" or "DATA" (among many others)
are not understood by GNU as.
STM8 port now selects GNU as format on --gas switch enabled.
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This fork aims to provide better support for stm8-binutils
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