Merge branch 'master' into popptr1

This commit is contained in:
Irgendwer
2018-05-21 13:33:14 +02:00
committed by GitHub
321 changed files with 9563 additions and 2667 deletions

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@@ -6,9 +6,9 @@
;
.include "atari.inc"
.export _cgetc,setcursor
.export _cgetc
.import setcursor
.import KEYBDV_handler
.import cursor,mul40
_cgetc:
jsr setcursor
@@ -29,43 +29,3 @@ _cgetc:
pha
rts
.endif
.proc setcursor
ldy #0
lda OLDCHR
sta (OLDADR),y
lda ROWCRS
jsr mul40
clc
adc SAVMSC ; add start of screen memory
sta OLDADR
txa
adc SAVMSC+1
sta OLDADR+1
lda COLCRS
adc OLDADR
sta OLDADR
bcc nc
inc OLDADR+1
nc: lda (OLDADR),y
sta OLDCHR
ldx cursor ; current cursor setting as requested by the user
beq off
ldx #0
beq cont
off: inx
cont: stx CRSINH ; update system variable
beq turnon
and #$7f ; clear high bit / inverse flag
finish: sta (OLDADR),y ; update on-screen display
rts
turnon: ora #$80 ; set high bit / inverse flag
bne finish
.endproc

78
libsrc/atari/getdevice.s Normal file
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@@ -0,0 +1,78 @@
;
; Oliver Schmidt, 2012-09-04
; Christian Groessler, 2017-12-28
;
; unsigned char getfirstdevice (void);
; unsigned char __fastcall__ getnextdevice (unsigned char device);
;
.include "atari.inc"
.export _getfirstdevice
.export _getnextdevice
MAX_DIO_DEVICES = 8
;------------------------------------------------------------------------------
; _getfirstdevice
_getfirstdevice:
lda #$FF
; Fall through
;------------------------------------------------------------------------------
; _getnextdevice
_getnextdevice:
tax
next: inx
cpx #MAX_DIO_DEVICES
beq none
jsr check_device
bmi next
done: txa
ldx #$00
rts
none: ldx #255 ; INVALID_DEVICE (see include/device.h)
bne done ; jump always
;------------------------------------------------------------------------------
; check_device - checks if a disk device is present
; input: X - device id (0 = D1, 1 = D2, ...)
; output: NF - 0/1 for detected/not detected
; X register preserved
check_device:
txa
pha
lda #SIO_STAT
sta DCOMND ; set command into DCB
lda #%01000000 ; direction value, "receive data"
sta DSTATS ; set data flow directon
lda #15
sta DTIMLO ; value got from DOS source
lda #4
sta DAUX1 ; set sector # (dummy: 4)
sta DBYTLO ; # of bytes to transfer
lda #0
sta DAUX2
sta DBYTHI
lda #>DVSTAT
sta DBUFHI
lda #<DVSTAT
sta DBUFLO ; set buffer address into DCB
lda #DISKID ; SIO bus ID of diskette drive
sta DDEVIC
inx
stx DUNIT ; unit number (1-based)
jsr SIOV ; execute SIO command
pla
tax
lda DSTATS
rts
.end

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@@ -41,7 +41,6 @@
.addr UNINSTALL
.addr COUNT
.addr READJOY
.addr 0 ; IRQ entry not used
; ------------------------------------------------------------------------
; Constants

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@@ -40,7 +40,6 @@
.addr UNINSTALL
.addr COUNT
.addr READJOY
.addr 0 ; IRQ entry not used
; ------------------------------------------------------------------------
; Constants

48
libsrc/atari/setcursor.s Normal file
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@@ -0,0 +1,48 @@
;
; Christian Groessler, November-2002
;
; cursor handling, internal function
.include "atari.inc"
.import cursor,mul40
.export setcursor
.proc setcursor
ldy #0
lda OLDCHR
sta (OLDADR),y
lda ROWCRS
jsr mul40
clc
adc SAVMSC ; add start of screen memory
sta OLDADR
txa
adc SAVMSC+1
sta OLDADR+1
lda COLCRS
adc OLDADR
sta OLDADR
bcc nc
inc OLDADR+1
nc: lda (OLDADR),y
sta OLDCHR
ldx cursor ; current cursor setting as requested by the user
beq off
ldx #0
beq cont
off: inx
cont: stx CRSINH ; update system variable
beq turnon
and #$7f ; clear high bit / inverse flag
finish: sta (OLDADR),y ; update on-screen display
rts
turnon: ora #$80 ; set high bit / inverse flag
bne finish
.endproc

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@@ -68,7 +68,6 @@ libref: .addr $0000 ; Library reference
.addr BAR
.addr TEXTSTYLE
.addr OUTTEXT
.addr 0 ; IRQ entry is unused
; ******************************************************************************

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@@ -1,8 +0,0 @@
;
; Target-specific black & white values for use by the target-shared TGI kernel
;
.include "tgi-kernel.inc"
.export tgi_color_black:zp = $00
.export tgi_color_white:zp = $01