A86: Problem with variables
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A86: Problem with variables
This bit of code dosen't work and I can't figure out why. Can anybody
help? The calc freezes in place when the variable exists, and turns off
then freezes when it dosent.
#include "asm86.h"
#include "ti86asm.inc"
#include "ti86math.inc"
#include "ti86ops.inc"
#include "ti86abs.inc"
.org _asm_exec_ram
_delvar equ 475Fh
_FINDSYM equ 46CBh
main:
call _OP1SET0 ; OP1 = 0
ld hl,progname ; Source = progname
ld de,_OP1+1 ; Dest = OP1+1
ld b,6 ; copy 6 bytes
ldir ; copy
call _FINDSYM ; carry flag set if var dosen't
exist, registers
; set correctly for _delvar
jr c,dosentexist ; if so, quit without doing
anything
call _delvar ; if not, delete it
dosentexist:
ret ; return to system
progname:
.db 05h,"ABCDE"
.end
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