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- Dwedit
#1 2009-04-02 3:38:35 pm
ARM SDT to GCC asm conversion tool
This is the ARM SDT to GCC asm conversion tool I used to port PocketNES and Goomba Color to GCC.
This tool does not do the whole job though.
"We are merely sprites that dance at the beck and call of our button pressing overlord."
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#2 2009-04-02 3:50:38 pm
Re: ARM SDT to GCC asm conversion tool
How to use it:
For example, I'll use PocketNES:
Make a "Project" file: (I named it project3.txt)
Code:
6502.s apack.s boot.s cart.s cf.s io.s link.s mem.s memory.s ppu.s sound.s visoly.s mappers/konami.s mappers/map023771.s mappers/map1.s mappers/map105.s mappers/map1166.s mappers/map15.s mappers/map151.s mappers/map16.s mappers/map17.s mappers/map18.s mappers/map184.s mappers/map19.s mappers/map2125.s mappers/map22.s mappers/map228.s mappers/map23.s mappers/map232.s mappers/map2426.s mappers/map32.s mappers/map33.s mappers/map34.s mappers/map4.s mappers/map40.s mappers/map42.s mappers/map5.s mappers/map64.s mappers/map65.s mappers/map67.s mappers/map68.s mappers/map69.s mappers/map70152.s mappers/map72.s mappers/map73.s mappers/map75.s mappers/map76.s mappers/map77.s mappers/map78.s mappers/map79.s mappers/map80.s mappers/map82.s mappers/map85.s mappers/map86.s mappers/map87.s mappers/map88.s mappers/map9.s mappers/map92.s mappers/map93.s mappers/map94.s mappers/map97.s mappers/map99.s
Make a batch file: (I named it convert.bat)
Code:
cd directory_containing_your_code ..\asmconv.exe ..\project3.txt ..\output_directory cd ..
Make sure output_directory and any necessary subdirectories exist already. Maybe copy all the original versions of files there too, files that need modification get overwritten anyway.
More stuff:
The generated code may depend on macros, here's a portion of them you'll need:
Code:
.macro adrl2 reg,label mov \reg,#\label&0x0FF00000 add \reg,\reg,#\label&0x000FFFFF .endm .macro start_map base, register @GBLA _map_address_ _map_address_ = \base .endm .macro _m_ label=0,size .if \label != 0 \label = _map_address_ .endif _map_address_ = _map_address_ + \size .endm .macro ldr_ reg,label ldr \reg,[globalptr,#\label] .endm .macro ldrb_ reg,label ldrb \reg,[globalptr,#\label] .endm .macro ldrh_ reg,label ldrh \reg,[globalptr,#\label] .endm .macro str_ reg,label str \reg,[globalptr,#\label] .endm .macro strb_ reg,label strb \reg,[globalptr,#\label] .endm .macro strh_ reg,label strh \reg,[globalptr,#\label] .endm .macro ldreq_ reg,label ldreq \reg,[globalptr,#\label] .endm .macro ldreqb_ reg,label ldreqb \reg,[globalptr,#\label] .endm .macro streq_ reg,label streq \reg,[globalptr,#\label] .endm .macro streqb_ reg,label streqb \reg,[globalptr,#\label] .endm .macro ldrne_ reg,label ldrne \reg,[globalptr,#\label] .endm .macro ldrneb_ reg,label ldrneb \reg,[globalptr,#\label] .endm .macro strne_ reg,label strne \reg,[globalptr,#\label] .endm .macro strneb_ reg,label strneb \reg,[globalptr,#\label] .endm .macro ldrhi_ reg,label ldrhi \reg,[globalptr,#\label] .endm .macro ldrhib_ reg,label ldrhib \reg,[globalptr,#\label] .endm .macro strhi_ reg,label strhi \reg,[globalptr,#\label] .endm .macro strhib_ reg,label strhib \reg,[globalptr,#\label] .endm .macro ldrmi_ reg,label ldrmi \reg,[globalptr,#\label] .endm .macro ldrmib_ reg,label ldrmib \reg,[globalptr,#\label] .endm .macro strmi_ reg,label strmi \reg,[globalptr,#\label] .endm .macro strmib_ reg,label strmib \reg,[globalptr,#\label] .endm .macro ldrpl_ reg,label ldrpl \reg,[globalptr,#\label] .endm .macro ldrplb_ reg,label ldrplb \reg,[globalptr,#\label] .endm .macro strpl_ reg,label strpl \reg,[globalptr,#\label] .endm .macro strplb_ reg,label strplb \reg,[globalptr,#\label] .endm .macro ldrgt_ reg,label ldrgt \reg,[globalptr,#\label] .endm .macro ldrgtb_ reg,label ldrgtb \reg,[globalptr,#\label] .endm .macro strgt_ reg,label strgt \reg,[globalptr,#\label] .endm .macro strgtb_ reg,label strgtb \reg,[globalptr,#\label] .endm .macro ldrge_ reg,label ldrge \reg,[globalptr,#\label] .endm .macro ldrgeb_ reg,label ldrgeb \reg,[globalptr,#\label] .endm .macro strge_ reg,label strge \reg,[globalptr,#\label] .endm .macro strgeb_ reg,label strgeb \reg,[globalptr,#\label] .endm .macro ldrlt_ reg,label ldrlt \reg,[globalptr,#\label] .endm .macro ldrltb_ reg,label ldrltb \reg,[globalptr,#\label] .endm .macro strlt_ reg,label strlt \reg,[globalptr,#\label] .endm .macro strltb_ reg,label strltb \reg,[globalptr,#\label] .endm .macro ldrle_ reg,label ldrle \reg,[globalptr,#\label] .endm .macro ldrleb_ reg,label ldrleb \reg,[globalptr,#\label] .endm .macro strle_ reg,label strle \reg,[globalptr,#\label] .endm .macro strleb_ reg,label strleb \reg,[globalptr,#\label] .endm .macro ldrlo_ reg,label ldrlo \reg,[globalptr,#\label] .endm .macro ldrlob_ reg,label ldrlob \reg,[globalptr,#\label] .endm .macro strlo_ reg,label strlo \reg,[globalptr,#\label] .endm .macro strlob_ reg,label strlob \reg,[globalptr,#\label] .endm .macro adr_ reg,label add \reg,globalptr,#\label .endm .macro adrl_ reg,label @ .if \label&0x80000000 @ sub \reg,globalptr,#((-(\label)) & 0xFF00FF00) @ sub \reg,\reg,#((-(\label)) & 0x000000FF) @ .else add \reg,globalptr,#((\label) & 0xFF00FF00) add \reg,\reg,#((\label) & 0x000000FF) @ .endif .endm .macro adrnel_ reg,label @ .if \label&0x80000000 @ subne \reg,globalptr,#((-(\label)) & 0xFF00FF00) @ subne \reg,\reg,#((-(\label)) & 0x000000FF) @ .else addne \reg,globalptr,#((\label) & 0xFF00FF00) addne \reg,\reg,#((\label) & 0x000000FF) @ .endif .endm
Afterwards, you may need to change some stuff:
* Replace .include with #include so that devkitarm's makefile works better
* Get rid of any excess MAPs, the tools only support one MAP.
* Change any incbins to be relative to the "Build" folder of a devkitpro project
* Some complex math expressions may not work on Gnu assembler, maybe equate them before you use them
* If you use register names, .unreq them at the end of a source file
* Because ADR can not cross source files, you may need to make a master asm file that #includes all other asm code
* AREA directives probably need to be rewritten:
Code:
example: change this AREA wram_code0, CODE, READWRITE to this .align .pool .section .iwram, "ax", %progbits .subsection 0 .align .pool
* Get rid of 2_ prefix for binary numbers, replace with 0b
* Maybe remove any unnecessary .includes if you move your project to the 'master source file that includes everything' model
"We are merely sprites that dance at the beck and call of our button pressing overlord."
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#3 2009-09-06 9:03:33 am
- daryy
- Slime
- Registered: 2009-09-06
- Posts: 1
Re: ARM SDT to GCC asm conversion tool
I make sure it is useful. Thanks for the ARM SDT to GCC asm conversion tool
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Last edited by daryy (2009-12-27 12:16:55 am)
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