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More banking support

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1588 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2002-11-22 22:24:24 +00:00
parent b7e7864fc5
commit 2de0fbb020
4 changed files with 30 additions and 19 deletions
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3
libsrc/plus4/Makefile
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@ -33,12 +33,13 @@ OBJS = _scrsize.o \
klisten.o \ klisten.o \
kload.o \ kload.o \
kopen.o \ kopen.o \
kplot.o \
krdtim.o \ krdtim.o \
kreadst.o \ kreadst.o \
ksave.o \ ksave.o \
ksetlfs.o \ ksetlfs.o \
ksetnam.o \ ksetnam.o \
ksettim.s \ ksettim.o \
ktalk.o \ ktalk.o \
kunlsn.o \ kunlsn.o \
kuntlk.o \ kuntlk.o \

21
libsrc/plus4/_scrsize.s
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@ -5,21 +5,10 @@
; ;
.export xsize, ysize .export xsize, ysize
.import SCREEN
.constructor initscrsize .data
xsize: .byte 40
.code ysize: .byte 25
initscrsize:
jsr SCREEN
stx xsize
sty ysize
rts
.bss
xsize: .res 1
ysize: .res 1

4
libsrc/plus4/cgetc.s
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@ -11,7 +11,7 @@
; -------------------------------------------------------------------------- ; --------------------------------------------------------------------------
.segment "LOWMEM" ; Accesses the ROM - must go into low mem .segment "LOWCODE" ; Accesses the ROM - must go into low mem
_cgetc: lda KEY_COUNT ; Get number of characters _cgetc: lda KEY_COUNT ; Get number of characters
ora FKEY_COUNT ; Or with number of function key chars ora FKEY_COUNT ; Or with number of function key chars
@ -73,7 +73,7 @@ L2: sta ENABLE_ROM ; Bank in the ROM
.endproc .endproc
.segment "LOWMEM" ; Accesses the ROM - must go into low mem .segment "LOWCODE" ; Accesses the ROM - must go into low mem
.proc donekbd .proc donekbd

21
libsrc/plus4/kplot.s Normal file
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@ -0,0 +1,21 @@
;
; Ullrich von Bassewitz, 22.11.2002
;
; PLOT replacement function
;
.export PLOT
.include "plus4.inc"
.segment "LOWCODE" ; Must go into low memory
.proc PLOT
sta ENABLE_ROM ; Enable the ROM
jsr $FFF0 ; Call the ROM routine
sta ENABLE_RAM ; Switch back to RAM
rts ; Return to caller
.endproc