More cleanup

src/c/workflow.txt

@@ -1,24 +0,0 @@
-Workflow:
-- Compile vwf.c and ext.c (and others as desired) to object files. Don't link yet
-- Generate m2-compiled.asm:
-  - Get function symbol addresses (objdump -t). Don't forget to offset by the compiled base address (i.e., 0x8100000)
-  - For each address, emit ".definelabel <function name>,<address>
-- Run armips on m2-hack.asm. Generate an armips symbol table
-- Emit "SECTIONS { .text 0x8000000 : { *(.text .rodata) } }" to the linker script
-- Pull all undefined symbols from code object files (vwf.o, ext.o, etc.)
-  - For each undefined symbol, look up value in armips symbol table. Output to linker script: "<symbol name> = <value>;"
-- Run the linker on the compiled code (vwf.o and ext.o)
-- Extract the .text section of linked.o and place directly into the ROM at the compiled address
-- Remove the symbol table entry that says the compiled code section is data
-
-For reference, extern functions that originate in the assembly and need
-to be called from C should be defined in vwf.h as (for example):
-
-    extern void copy_tile_up(int x, int y);
-
-...and due to a bug (http://stackoverflow.com/a/43283331/1188632) in the
-linker, *also* defined in ext.c as:
-
-    __attribute__((naked)) void copy_tile_up(int x, int y){}
-
-Because armips exports all symbols in lower-case, all such extern functions must be lower-case.