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Fixes for the ptvjoy drivers by Marco van den Heuvel.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4581 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -117,24 +117,24 @@ joy2: dex
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; Read joystick 3
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; Read joystick 3
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joy3: dex
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joy3:
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bne joy4
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lda #%10000000 ; cia 2 port B Data-Direction
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lda #%10000000 ; cia 2 port B Data-Direction
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sta CIA2_DDRB ; bit 7: out bit 6-0: in
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sta CIA2_DDRB ; bit 7: out bit 6-0: in
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dex
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bne joy4
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lda #$80 ; cia 2 port B read/write
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lda #$80 ; cia 2 port B read/write
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sta CIA2_PRB ; (output one at PB7)
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sta CIA2_PRB ; (output one at PB7)
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lda CIA2_PRB ; cia 2 port B read/write
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lda CIA2_PRB ; cia 2 port B read/write
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and #$1f ; get bit 4-0 (PB4-PB0)
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and #$1f ; get bit 4-0 (PB4-PB0)
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eor #$1f
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rts
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rts
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; Read joystick 4
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; Read joystick 4
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joy4: lda #%10000000 ; cia 2 port B Data-Direction
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joy4:
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sta CIA2_DDRB ; bit 7: out bit 6-0: in
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lda #$00 ; cia 2 port B read/write
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lda #$00 ; cia 2 port B read/write
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sta CIA2_PRB ; (output zero at PB7)
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sta CIA2_PRB ; (output zero at PB7)
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@ -146,7 +146,7 @@ joy4: lda #%10000000 ; cia 2 port B Data-Direction
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and #%00100000 ; get bit 5 (PB5)
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and #%00100000 ; get bit 5 (PB5)
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lsr
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lsr
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ora tmp1
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ora tmp1
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eor #$1f
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ldx #0
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ldx #0
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rts
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rts
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@ -125,6 +125,7 @@ joy2: lda #%10000000 ; via port B Data-Direction
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lda VIA1_PRB ; via port B read/write
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lda VIA1_PRB ; via port B read/write
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and #$1f ; get bit 4-0 (PB4-PB0)
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and #$1f ; get bit 4-0 (PB4-PB0)
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eor #$1f
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rts
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rts
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; Read joystick 3
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; Read joystick 3
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@ -140,6 +141,7 @@ joy3: lda #$00 ; via port B read/write
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and #%00100000 ; get bit 5 (PB5)
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and #%00100000 ; get bit 5 (PB5)
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lsr
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lsr
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ora tmp1
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ora tmp1
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eor #$1f
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ldx #0
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ldx #0
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rts
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rts
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