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Updated the cx16 library to the Commander X16 Kernal's prerelease 35.

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This commit is contained in:
Greg King
2019-12-25 10:56:32 -05:00
parent cab4910a7d
commit 3fa253d31f
31 changed files with 508 additions and 271 deletions
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60
libsrc/cx16/joy/cx16-std.s
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@@ -1,8 +1,8 @@
;
; Standard joystick driver for the CX16.
; May be installed multiple times when statically linked to the application.
; May be installed multiple times when statically linked to an application.
;
; 2019-11-15 Greg King
; 2019-12-24, Greg King
;
.include "joy-kernel.inc"
@@ -14,6 +14,8 @@
.macpack generic
.macpack module
.importzp tmp1
; ------------------------------------------------------------------------
; Header. Includes jump table
@@ -75,51 +77,21 @@ COUNT: lda #<JOY_COUNT
; ------------------------------------------------------------------------
; READ: Read a particular joystick passed in .A .
READ: php
bit #JOY_COUNT - $01
sei
bnz pad2
READ: and #%00000001
jsr JOYSTICK_GET
sta tmp1
txa
bit #%00001110 ; Is it NES or SNES controller?
bze nes
; Read game pad 1
pad1: ldy JOY1 ; Allow JOY1 to be reread between interrupts
sty JOY1 + 2
lda JOY1 + 1
bit #%00001110
bze nes1
asl JOY1 + 2 ; Get SNES's B button
asl tmp1 ; Get SNES's B button
ror a ; Put it next to the A button
asl JOY1 + 2 ; Drop SNES's Y button
asl tmp1 ; Drop SNES's Y button
asl a ; Get back the B button
ror JOY1 + 2
ror tmp1
asl a ; Get SNES's A button
ror JOY1 + 2 ; Make byte look like NES pad
ror tmp1 ; Make byte look like NES pad
nes1: lda JOY1 + 2
plp
eor #%11111111 ; (The controllers use negative logic)
rts
; Read game pad 2
pad2: ldy JOY2
sty JOY2 + 2
lda JOY2 + 1
bit #%00001110
bze nes2
asl JOY2 + 2
ror a
asl JOY2 + 2
asl a
ror JOY2 + 2
asl a
ror JOY2 + 2
nes2: lda JOY2 + 2
plp
eor #%11111111
nes: lda tmp1 ; The controllers give zeroes for "pressed"
eor #%11111111 ; We want ones for "pressed"
rts