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Filtering of arrow keys in TTY-driver #193

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merged 2 commits into from
Oct 18, 2024
Merged

Filtering of arrow keys in TTY-driver #193

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0c92f7b
Filtering out arrow keys in the TTY driver
venomix666 Oct 12, 2024
10ed7df
Filtering out arrow keys from the USB keyboard on the nano6502
venomix666 Oct 12, 2024
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5 changes: 5 additions & 0 deletions src/arch/commodore/pet.S
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Original file line number Diff line number Diff line change
Expand Up @@ -582,6 +582,11 @@ zproc tty_conin
lda #0xff
ldx #0xff
jsr screen_getchar
; Filter out arrow keys
cmp #$80
zif_cs
lda #0
zendif
zuntil_cc

rts
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7 changes: 6 additions & 1 deletion src/arch/nano6502/nano6502.S
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Original file line number Diff line number Diff line change
Expand Up @@ -313,7 +313,7 @@ zproc tty_conin
lda pending_key
zif_eq
tty_input_wait:
lda #IO_page_uart
lda #IO_page_uart
sta IO_page_reg
lda uart_rx_avail
beq tty_input_keyb
Expand All @@ -326,6 +326,11 @@ tty_input_keyb:
lda keyb_data_avail
beq tty_input_wait
lda keyb_data
; Filter out arrow keys
cmp #$80
zif_cs
lda #0
zendif
clc
rts
zendif
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6 changes: 6 additions & 0 deletions src/arch/oric/oric.S
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Original file line number Diff line number Diff line change
Expand Up @@ -689,6 +689,7 @@ zproc tty_const
zendif

lda pending_key

zif_ne
lda #0xff
zendif
Expand All @@ -704,6 +705,11 @@ zproc tty_conin
lda #0xff
ldx #0xff
jsr screen_getchar
; Filter out arrow keys
cmp #$80
zif_cs
lda #0
zendif
zuntil_cc

rts
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