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After some very HEAVY testing and tweaking, I finally was able to create a full set of lib binaries with 4 different configurations:
LoROM - SlowROM (already present by default)
LoROM - FastROM (all sections with .BASE $80)
HiROM - SlowROM (core sections with .BASE $00 ORG $8000 and everything else with .BASE $40 ORG 0)
HiROM - FastROM (core sections with .BASE $80 ORG $8000 and everything else with .BASE $C0 ORG 0)
Notice that BANKS $7E and $7F are for RAM use, so HiROM - SlowROM won't be able to use that banks for storing ROM.
TCC compiler was changed to have some small functions that inyect .BASE directives before .SECTIONS and .RAMSECTIONS
most files where modified to obey the same configuration of compiler, so MAKEFILE will create .obj files inside 4 different folders inside lib folder.
Last IMPORTANT thing
Usage inside MSYS bash add 2 more functions:
export HIROM=1
export FASTROM=1
compiler will notify wich modes are enabled.