A86: writeback

To: assembly-86@lists.ticalc.org
Subject: A86: writeback
From: ComAsYuAre@aol.com
Date: Sun, 4 Apr 1999 11:34:27 EDT
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-86@lists.ticalc.org
Reply-To: assembly-86@lists.ticalc.org


can somebody help me with this writeback routine for saving high scores and 
such?

when i try this routine, it doesn't seem to do anything at all to the data in 
the original program.

save_data:
	ld hl,varname
	rst 20h			;copy to OP1
	rst 10h			;_findsym
	jr c,quit			;renamed - so no write back
	ld a,b
	ex de,hl
	call _load_ram_ahl
	ld de,data-_asm_exec_ram		;offset
	add hl,de			;hl=pointer to data in original prog
	adc a,0			;in case we overlapped
	call _SET_ABS_DEST_ADDR
	xor a				;no absolute addressing now
	ld hl,data	;get data from here
	call _SET_ABS_SRC_ADDR
	ld hl,36			;number of bytes to save
	call _SET_MM_NUM_BYTES
	call _mm_ldir		;copy data

Prev: A86: CAS
Next: Re: A86: writeback
Index(es):
- Main
- Thread