rendered paste body ADR r0, EnvName
MOV r1, #0
MVN r2, #-1 ; get length
MOV r3, #0
MOV r4, #0
SWI XOS_ReadVarVal
; CMP r2, #0 ; 0 == doesn't exist
; LDREQ pc, [r13], #4 ; just be dormant and useless
; NOT (length) is now in r2
MOV r0, #6 ; OS_Module claim
MVN r3, r2
ADD r3, r3, #4 ; space for the length at the start
SWI OS_Module
STR r2, [r12]
ADR r0, EnvName
ADD r1, r2, #4
SUB r2, r3, #0 ;4 ; buffer size - length word
STR r2, [r1, #-4] ; store the length
MOV r3, #0 ; 1st call
MOV r4, #0 ; blah!
SWI XOS_ReadVarVal ; read it into our buffer space