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Posted By

Harry Potter
on 2022-12-10
08:31:33
 Re: AdvSkel65/128k Plus4/cc65: Hannes memory not loaded properly

I fixed a bug in the code--I forgot what the bug was--and now, the room description prints properly, but the items in the room after the first print garbage. Also, the C64 versions currently don't work: they give me a blue screen with no text. sad Following are some code snippets that might be causing the problem:
-------------------------------
.segment "MEMBANK"

_bank1_readbyte:
ldy #0
bank1_readbyteoffs:
sta ptr1
stx ptr1+1
bank1_readbyteoffs2:
;sta $FF02
sei
lda #$32
sta $FD16
lda (ptr1),y
;sta $FF01
ldx #$33
stx $FD16
cli
ldx #0
rts

.segment "LOWCODE"

_bank1_writebyte:
;jsr popa
pha
jsr popax
sta ptr1
stx ptr1+1
pla
ldy #0
jmp bank1_writebytedirect

.segment "MEMBANK"

bank1_writebytedirect:
;sta $FF02
sei
pha
lda #$32
sta $FD16
pla
sta (ptr1),y
lda #$33
sta $FD16
cli
rts
-------------------------
//Prints the name of the current item indicated by Itm1.
static void __fastcall__ printitmname (void)
{
//printu (Itm1); printc (' ');
#ifdef __USEFARMEM__
#ifdef __C128__
//bank1_print (bank1_readword((void*)&Item[Itm1].Name));
printtok (Item[Itm1].Name);
#elif defined __C64__
printtok (hidereadw((void*)&Item[/*CurRoomInv<i>*/Itm1].Name));
#elif defined __PLUS4__ || defined __C128__
printtok (bank1_readword((void*)&Item[Itm1].Name));
#elif defined __ATARI__ || defined __APPLE2ENH__
printtok (aux_readword((void*)&Item[Itm1].Name));
#endif
#else
prints (Item[Itm1].Name);
#endif
}

//Verb to describe the current item or scene.
void vLook (void)//char Itm1)
{
//static unsigned char i;
static void (*func)(void);
//If an item is specified:
if (Itm1!=0xFF) {
//If it is available in the player inventory,
#ifdef __USEFARMEM__
if (SearchInvPlayer () || SearchInvRoom ())
{
//get string address and print help text.
if ((s=hidereadw((void*)&ItemPtr->Info))==0) {
printscr ("No help available for that item.");
return;
}
printtok (s); printcr ();
#else
if (SearchInvPlayer () || SearchInvRoom ())
{
//get string address and print help text.
if ((s=ItemPtr->Info)==0) {
printscr ("No help available for that item.");
return;
}
printscr (s);
#endif
} else {
printnoitem ();
}
return;
}
//Otherwise,
//get room information
memcpy (0xC00, Player.RoomInv[CRoom], 8); getkey();
CurRoomInv=&Player.RoomInv[CRoom];
CRm=&Room[CRoom];
//print it,
#ifdef __USEFARMEM__
printtok ((char*)hidereadw((void*)&CRm->Desc));
//printc ('a');
//call the room handler
func=hidereadw((void*)&CRm->RoomHandler);
//printc ('b');
#else
printtok (CRm->Desc);
//call the room handler
func=(CRm->RoomHandler);
#endif
(*func) ();
printcr();
//and list room items.
for (i=0; i<8 && (Itm1=CurRoomInv<i>)!=0xFF;++i) {
//printu (CurRoomInv+i);
#ifdef __USEFARMEM__
prints ("There is a ");
printitmname ();
printscr (" here.");
#else
prints ("There is a ");
printitmname ();
printscr (" here.");
#endif
}
//if (i) printcr();
}




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