Apple-2gs-SW/itty-bitty-vtty
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use the power of external constants to generate a block count.

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This commit is contained in:
Kelvin Sherlock 2021-04-14 22:53:46 -04:00
parent f458f27860
commit 874929a085
2 changed files with 10 additions and 2 deletions
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5
boot.S
View File

@ -10,7 +10,7 @@
* org $0800
ORG equ $6000
MAX_BLOCK equ 6
*MAX_BLOCK equ 6
SLOT equ $00
@ -20,6 +20,7 @@ BUFFER equ $44
BLOCK equ $46
ext main
ext MAXBLOCKS
boot
mx %11
@ -86,7 +87,7 @@ boot
inc BUFFER+1
inc BUFFER+1
lda BLOCK
cmp #MAX_BLOCK+1
cmp #MAXBLOCKS
bcc :read
bra :ok

7
vt52.S
View File

@ -4,6 +4,9 @@
xc
rel
START equ *
* vt52 emulator.
* not supported - graphics, screen hold.
*
@ -834,6 +837,10 @@ cursor_int
rtl
END equ *
MAXBLOCKS equ END-START+511/512+2
ent MAXBLOCKS
* lst on
* sym on
sav vt52.L