For some reason, `No` looks weird in the HTML version of the docs.
Some other random fixes.
Tables in src/asm/rgbasm.5 are still broken in the HTML docs.
Signed-off-by: Antonio Niño Díaz <[email protected]>
When including a linkerscript from a parent one, the lexer didn't
include a newline character because the INCLUDE command was handled
before reaching the newline. This behaviour is needed to parse the last
line of a linkerscript correctly (it doesn't have a newline character).
However, this meant that when the included file was being parsed, the
first line was considered a continuation of the last line of the parent
script (the INCLUDE command), which means that the first line of an
included linkerscript could only contain a comment (or nothing at all).
This patch adds a newline character to the buffer used by the lexer so
that the parser will receive a newline and it will handle the first line
of the included file as expected.
Signed-off-by: Antonio Niño Díaz <[email protected]>
`LD HL,n16` and `LD SP,n16` are handled in a different rule as
`LD r16,n16`, but they are also part of that rule.
This patch converts the `LD r16,n16` rule into two rules, one for doing
`LD BC,n16` and other one for `LD DE,n16`.
Signed-off-by: Antonio Niño Díaz <[email protected]>
rgblink option -w has been restored to its previous behaviour: make WRAM
a continous section instead of spliting it into WRAM0 and WRAMX.
To enable DMG mode, option -d has to be used instead. This option
automatically enables -w.
Update tests.
Signed-off-by: Antonio Niño Díaz <[email protected]>
If the next release is going to break compatibility with older object
file formats it doesn't make sense to keep this.
Signed-off-by: Antonio Niño Díaz <[email protected]>
Added `__TIMESTAMP_ISO_8601_LOCAL__` and `__TIMESTAMP_ISO_8601_UTC__`,
with the correct ISO 8601 representation of time and date from years to
seconds (including local timezone in the local time string).
Also, if the current time cannot be obtained from the OS, it will output
a warning and the time strings will be filled with '?' instead of
numbers and characters.
Signed-off-by: Antonio Niño Díaz <[email protected]>
If they don't have quotes when passed to sym_AddString() they can't be
used at all by the assembler. I suppose nobody actually used them, they
seem to have been broken forever.
Added a comment to the function to say how to use it correctly for
strings.
Signed-off-by: Antonio Niño Díaz <[email protected]>
IMPORT is simply useless, any symbol that isn't found in the current
file is automatically flagged as imported symbol.
Signed-off-by: Antonio Niño Díaz <[email protected]>
Files can now be included with the following syntax:
INCLUDE "path.link"
The maximum include depth is 5.
Fixed linkerscript parser and lexer error messages so that they are more
informative (show file and line of the error).
Man page updated.
Signed-off-by: Antonio Niño Díaz <[email protected]>
The error message shouldn't specify the name of the binary, that's
supposed to be known by the caller.
Update test reference outputs.
Signed-off-by: Antonio Niño Díaz <[email protected]>
It compares the results of the operators with the expected result if
doing the same thing manually.
Signed-off-by: Antonio Niño Díaz <[email protected]>
They work with the 16-bit registers BC, DE and HL, returning the
corresponding 8-bit register. HIGH() works with AF as well, returning A.
They also work with any kind of constant or symbol, generating a RPN
patch in the object file if the value is not defined at assembly time.
They work with macro arguments as well.
Signed-off-by: Antonio Niño Díaz <[email protected]>
A lot of warnings are being added (and more will come) so it makes sense
to be able to disable them in legacy source that generates warnings but
is otherwise correct.
Signed-off-by: AntonioND <[email protected]>
Replace spaces by tabs for consistency. The rest of the codebase uses
tabs, so the linkerscript parser has to change.
Removed trailing tabs in all codebase.
Signed-off-by: AntonioND <[email protected]>
getsymbank() is used for more things than just when the code explicitly
has a BANK() operator, which causes a lot of noise when building code
that has more than one object file and places variables on HRAM or OAM.
Signed-off-by: AntonioND <[email protected]>
When calculating the difference of addresses between two labels, for it
to be defined, either:
- Both of them must have their absolute address defined.
- They belong to the same section, so their relative addresses are
compatible.
This patch adds a check to make sure that any other case is detected so
that the programmer can correct the code.
This applies to rgbasm. The difference of labels can be used, for
example, as argument of DS. The linker can't resize sections, which
means that the final value must be defined when creating the object
file.
Signed-off-by: AntonioND <[email protected]>
Instead of converting from ROMX to ROM0 with -t and preventing the use
of WRAMX at all with -w, make each option prohibit the type of section
they affect.
This is a good idea because it can prevent a developer from making
mistakes when switching from using the options to not using them.
Generally, a change from using one single bank to multiple banks is
something that will take a lot of effort, and forgetting sections in
ROM0 or WRAM0 will only make the free space of those areas to be
reduced (and maybe prevent compilation), but it won't cause any problems
because of a forgotten bank swap in the code.
Signed-off-by: AntonioND <[email protected]>
Check all sections when testing BANK().
Add scripts to verify the tests and update the reference if needed.
Signed-off-by: AntonioND <[email protected]>
Improve error messages generated by `errx()`, `warnx()` and similar.
Set `progname` to a static string with the name of the program so that
the path of the binary isn't included in error messages.
Signed-off-by: AntonioND <[email protected]>
Instead of returning the internal representation of the linker, return
0 when using BANK() on a label in HRAM.
Also, generate a warning when calculating the bank of labels in OAM
and HRAM, as there is no valid reason for doing it, so it's likely a
programming mistake.
Signed-off-by: AntonioND <[email protected]>
Due to recent changes, lots of tests generated a slightly different
error output.
- bank-noexist : This test doesn't generate any error output now as
unknown labels are left for the linker to resolve.
- null-in-macro : This test used to crash. Now, the parser verifies that
a MACRO ends in ENDM, generating an error message if not.
Signed-off-by: AntonioND <[email protected]>
This patch isn't used because it's meant to be an optimization for
labels in the memory region 0x2000-0x20FF. That memory region doesn't
have anything special on the Game Boy, and there are no instructions
optimized to read or write from there, so it was probably meant for
another hardware that was supported by ASMotor in the past.
Signed-off-by: AntonioND <[email protected]>
Even though the bank number was read from the linkerscript and the
linker verified that each section could be mapped in the final rom, the
bank number was never actually set by the linkerscript parser.
Signed-off-by: AntonioND <[email protected]>
To make the behaviour of the linkerscript consistent, every section read
from an object file must have an unique name. This is needed as the
linkerscript uses the name of sections to place them and it expects
every section to have a different name.
This doesn't break compatibility with the old behaviour that allowed to
continue sections if they had the same name, bank number and starting
address. That's still allowed because `rgbasm` outputs a single section
if this functionality is used, it is transparent to `rgblink`.
Signed-off-by: AntonioND <[email protected]>
They are still working, they just output a warning.
`jp [hl]` is confusing as it may be thought that the CPU reads the value
pointed by hl and jumps to it.
`ldi a,hl` and `ldd a,hl` are also confusing as they load from the
address pointed by `hl`, the correct mnemonic should say `[hl]`.
Signed-off-by: AntonioND <[email protected]>
Print the name of each section along with the size, base and end
addresses. If a section is empty, don't print the end address, as it
can overflow if the base address is 0.
Signed-off-by: AntonioND <[email protected]>
Antonio Niño Díaz