view 3rdparty/customboots/boisy/testmul.a @ 3210:6353bb024571

Created makefile and defsfile for NoCan RAMMER module driver and descriptor Updated rammer.asm in the NoCan driver folder to build the NoCan version of the Driver Updated r0.asm file to create the 6MB version of the descriptor. The makefile creates a disk image with two sets of the required drivers for the 6309 and 6809's in their respective module folders. /NITROS9/6309_L2/MODULES/RBF for the 6309 files and /NITROS9/6809_L2/MODULES/RBF for the 6809 files. This will make it easier for doing a dsave from this disk image into a normal distro disk image so people have these drivers ready for when new memory upgrades allow compatible usage of the NoCan registers.
author David Ladd <drencor-xeen@users.sourceforge.net>
date Wed, 20 Dec 2017 15:15:49 -0600
parents 6bc8200fd0ba
children
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tylg           set       $01     Prgrm+Objct
atrv           set       $80+rev ReEnt+rev
rev            set       $00
edition        set       5

               psect     testmul_a,tylg,atrv,edition,200,start

               vsect
multiplicand   rmb       1
multiplier     rmb       1
               endsect

* capture two parameters
start          clr       multiplicand,u
               clr       multiplier,u

* if no params, just go straight to multiplication
               lda       ,x
               cmpa      #C$CR
               beq       go
               
* get first number
               lbsr      DEC_BIN
               stb       multiplicand,u
               leax      ,y
               lbsr      TO_NON_SP

* if no second number, go straight to multiplication
               cmpb      #C$CR
               beq       go
               lbsr      DEC_BIN
               stb       multiplier,u

go               
               orcc      #IntMasks
top               
               ldd       multiplicand,u
               mul
               bra       top

 
               endsect