Using The Linker Locator To Set Up A Window - Intel 8XC196MC User Manual

4.2.2.5

Using the Linker Locator to Set Up a Window

In this example, the linker locator is used to set up a window. The linker locator locates the win-
dow in the upper register file and determines the value to load in the WSR for access to that win-
dow. (Please consult the manual provided with the linker locator for details.)
********* mod1 **************
mod1 module main
public function1
extrn ?WSR
wsr equ 14h:byte
sp equ 18h:word
oseg
var1: dsw 1
var2: dsw 1
var3: dsw 1
cseg
function1:
push wsr
ldb wsr, #?WSR
add var1, var2, var3
;
;
;
ldb wsr, [sp]
add sp, #2
ret
end
******** mod2 **************
public function2
extrn ?WSR
wsr equ 14h:byte
sp equ 18h:word
oseg
var1: dsw 1
var2: dsw 1
var3: dsw 1
cseg
function2:
push wsr
;Main module for linker
;Must declare ?WSR as external
;Allocate variables in an
;overlayable segment
;Prolog code for wsr
;Prolog code for wsr
;Use the variables as registers
;Epilog code for wsr
;Epilog code for wsr
;Prolog code for wsr
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MEMORY PARTITIONS
4-17