Manipulation Routines; List Element Routines - Texas Instruments TI-83 Plus Manual

Chapter 2: TI-83 Plus Specific Information
;
; B = ROM page and DE = offset, to start of data in the archive
;
;
; now the size of the Symbol Table entry needs to be computed so that
; it can be skipped over to get to the AppVar's data structure
;
;
;
;
MyAppVar:
BHL_Plus_DE:
;

Manipulation Routines

List Element Routines

These routines are used for storing and recalling list element values and for changing
the dimension of a list.
AdrLEle
TI-83 Plus Developer Guide
LD HL,MyAppVar
RST rMov9ToOP1
B_CALL ChkFindSym
EX DE,HL
CALL LoadCIndPaged_inc
CALL LoadDEIndPaged_inc
LD DE,5
CALL BHL_plus_DE
CALL LoadCIndPaged_inc
LD E,C
CALL BHL_plus_DE
CALL LoadDEIndPaged_inc
RET
.asciz AppVarObj, 'MYAPPVAR'
ADD HL,DE
BIT 7,H
RET Z
INC B
RES 7,H
SET 6,H
RET
Returns the RAM address of a list element.
; OP1 = AppVar name
; find Symbol Table entry,
; and get pointers
; B, HL now points to the
; data of the variable
; skip data valid flag
; skip data length, B, HL
; at symbol entry
; DE = offset to name
; length of AppVar
; add DE to B, HL:
; page, offset
; C = name length, B, HL
; advanced
; DE = offset to start of
; AppVars data
; add DE to B, HL: page,
; offset
; DE = size bytes of
; AppVar,
; add DE to the offset HL
; cross page boundary?
; no, B, HL = ROM page and
; offset
; increase ROM page number
; adjust offset to be in
; 4000h to 7FFFh
Third Release May 28, 2002
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