The Asmosphere Assembler

[Petr Schreiber]

Thanks Charles,

sounds good!


Petr

[Charles Pegge]

Hi Petr,

I have just posted a low level counterpert of thinBsic_Oxygen, and a compiled demo of Plasma

http://www.jose.it-berater.org/smffo...php?topic=1649

[Charles Pegge]

I've implemented soft coding in a new release. It's the first time I have used a hash algorithm to eliminate scanning for instruction names. In most cases, the instruction is located in a single step and all are resolved within three steps in a linked list.

The instruction names are hashed into a 32 bit code. The lower 9 bits of which are used to address a data array of 512 cells, which can be chained to others. There is a one in 4 million chance that the instruction set will contain 2 instructions with the same hash code so this has to be checked when the instruction set is loaded.

Anyway, apart from adding instructions being developed for new processors, it will support those instructions which have alternative names. A kernel of instructions remain hard-coded because their operand types are quite complex to resolve, but I will probably be able to move a few more of them out to the o2asm.data file.

zip file at beginning of this topic

[Petr Schreiber]

Hi Charles,

as usually, great job!
The data file should be placed in same directory as script or DLL?


Thanks,
Petr

[Charles Pegge]

Thanks Petr,

I have not specified a path for o2asm.data so it goes in the current working directory, when the o2_asm() or o2_asm_file() is invoked for the first time.
After this, the module is self-sufficient and o2asm.data is not used again until the module is reloaded.

[ErosOlmi]

Thanks Charles.
Will be present in next thinBasic release.