empathicqubit/cc65
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

New _randomize() function, do some cleanup on apple2.inc

Browse source 
git-svn-id: svn://svn.cc65.org/cc65/trunk@1496 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2002-11-07 12:16:15 +00:00
parent f708a05d61
commit 2f3f1df00f
3 changed files with 88 additions and 56 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
libsrc/apple2/Makefile
View file

@ -25,6 +25,7 @@ S_OBJS= _scrsize.o \
ctype.o \
cvline.o \
kbhit.o \
randomize.o \
read.o \
revers.o \
where.o \

56
libsrc/apple2/apple2.inc
View file

@ -1,22 +1,7 @@
; Break vector
BRKVec = $03F0
; Goto Dos
RESTOR = $03D0
;-----------------------------------------------------------------------------
; Zero page stuff
; Soft switches
;
; write to USEROM to enable apple rom C000-CFFF
USEROM = $C007
; 80 column card switches
C80ON = $C00C
C80OFF = $C00D
RD80COL = $C01F
PG2OFF = $C054
PG2ON = $C055
RDPAGE2 = $C01C
; Text routines
MIN_X = $20
MAX_X = $21
MIN_Y = $22
@ -25,10 +10,31 @@ CH = $24
CV = $25
BASL = $28
TEXTTYP = $32
RNDL = $4E ; Random value, low byte
RNDH = $4F ; Random value, high byte
MEMSIZE = $73 ; Highest free RAM location
HOME = $FC58
VTABZ = $FC24
COUT = $FDED
;-----------------------------------------------------------------------------
; Vectors
BRKVec = $03F0 ; Break vector
RESTOR = $03D0 ; Goto Dos
;-----------------------------------------------------------------------------
; Hardware
; Soft switches
;
; Write to USEROM to enable apple rom C000-CFFF
USEROM = $C007
; 80 column card switches
C80ON = $C00C
C80OFF = $C00D
RD80COL = $C01F
PG2OFF = $C054
PG2ON = $C055
RDPAGE2 = $C01C
; Keyboard entries
RDKEY = $FD0C
@ -39,8 +45,16 @@ KEY_STROBE = $C000
OPEN_APPLE = $C061
CLOSED_APPLE = $C062
;-----------------------------------------------------------------------------
; ROM routines
; Text output and helpers
HOME = $FC58
VTABZ = $FC24
COUT = $FDED
; Graphics entry points, by cbmnut (applenut??) cbmnut@hushmail.com
WHITE = $01 ;white for $1c, I think...
WHITE = $01 ; White for $1c, I think...
COLOR = $1C ; Current plot color

17
libsrc/apple2/randomize.s Normal file
View file

@ -0,0 +1,17 @@
;
; Ullrich von Bassewitz, 07.11.2002
;
; void _randomize (void);
; /* Initialize the random number generator */
;
.export __randomize
.import _srand
.include "apple2.inc"
__randomize:
ldx RNDH ; Use random value supplied by ROM
lda RNDL
jmp _srand ; Initialize generator