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Introduction
Porting tools
Relogix
Technical tour
How Relogix works
Simple example
Relogix translation
Include files
Function definitions
Local variables
Variable types
Variable names
Code flow
Simplification
Comments
User header files
Style options
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To examine how Relogix translates your source code, we will start by seeing what it would produce if asked to translate a 680x0 source file called sample.sa, which contains just one simple subroutine: (For an x86 equivalent, click here)
sample.sa
XDEF MOVETOK
SECTION CODE
ENDMARK EQU $80000000
TOKCHAR EQU 0
TOKALT EQU 1
TOKBUF EQU 2
TOKCTR EQU 6
; Routine to move token block to buffer
MOVETOK: MOVE.L TOKCTR(A0),D0
BEQ.S DONE
TST.L TOKBUF(A0)
BEQ.S DONE
MOVE.L TOKBUF(A0),A0
LOOP: MOVE.L (A0)+,D1 ; Get token
CMP.L #ENDMARK,D1 ; Hit end marker?
BEQ.S DONE
MOVE.L D1,(A1)+ ; Move into destination
SUBQ.L #1,D0
BNE.S LOOP
DONE: RTS
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