Changeset 59 for trunk/page00/boot.asm

Timestamp:

11/01/09 14:00:18 (3 years ago)

Author:

brandonlw

Message:

Some dual booting clean-up

Files:

• trunk/page00/boot.asm (modified) (5 diffs)

trunk/page00/boot.asm

@@ -806 +806 @@
        ld hl,sTIOS-BootLoader+userMem
 $$:    B_CALL PutS
+       ld hl,5
+       ld (curRow),hl
+       ld hl,sInstructions-BootLoader+userMem
+       B_CALL PutS
        ld hl,6
        ld (curRow),hl
-       ld hl,sInstructions-BootLoader+userMem
+       ld hl,sInstructions2-BootLoader+userMem
        B_CALL PutS
        ld hl,7
@@ -821 +825 @@
        cp skDel
        jr z,ReceiveTIOS
+       cp sk0
+       jr z,DeleteOS
        ld hl,contrast
        cp skAdd
@@ -940 +946 @@
        B_CALL ClrLCDFull
        rst 00h
+DeleteOS:
+       call UniversalUnlockFlash-BootLoader+userMem
+       ld a,70h
+       ld b,0
+       ld de,4056h
+       B_CALL WriteAByte
+       ;Restart.
+       rst 00h
 ReceiveTIOS:
 ;We don't have a copy of the TI-OS, receive one
@@ -973 +987 @@
        ld a,70h
        out (memPageAPort),a
-       ld hl,(4000h)
-       inc hl
-       ld a,h
-       or l
+       ld a,(4000h+0056h)
+       ;HACK: be smarter about this...
+       cp 5Ah
+       jr z,$F
+       xor a
+       jr NZIfTIOSExists_1
+$$:    or 1
+NZIfTIOSExists_1:
        pop bc
        ld a,b
@@ -1191 +1209 @@
 sInstructions:
        DB LlBrack,"Y=] to switch",0CEh,0
+sInstructions2:
+       DB LlBrack,"0] to delete",0CEh,0
 sClearToCancel:
        DB LlBrack,"CLEAR] to exit",0