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https://github.com/bobbimanners/emailler.git
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replace absolute values with defines from atari.inc
This commit is contained in:
Christian Groessler
parent
596a27720b
commit
504a880d03
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@ -1,3 +1,5 @@
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.include "atari.inc"
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.export get_key
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.export check_for_abort_key
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.export get_key_if_available
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@ -24,7 +26,7 @@ get_key:
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; inputs: none
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; outputs: A contains ASCII value of key just pressed (0 if no key pressed)
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get_key_if_available:
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lda $02fc ; GLOBAL VARIABLE FOR KEYBOARD
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lda CH ; GLOBAL VARIABLE FOR KEYBOARD
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cmp #255
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beq @nokey
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ldx iocb ; K: already open?
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@ -32,23 +34,23 @@ get_key_if_available:
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ldx #$40 ; IOCB to use for keyboard input
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stx iocb ; mark K: as open
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lda #<kname
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sta $344,x ; 1-byte low buffer address
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sta ICBAL,x ; 1-byte low buffer address
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lda #>kname
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sta $345,x ; 1-byte high buffer address
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lda #3 ; open
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sta $342,x ; COMMAND CODE
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lda #4 ; open for input (all devices)
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sta $34a,x ; 1-byte first auxiliary information
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jsr $e456 ; vector to CIO
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sta ICBAH,x ; 1-byte high buffer address
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lda #OPEN ; open
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sta ICCOM,x ; COMMAND CODE
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lda #OPNIN ; open for input (all devices)
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sta ICAX1,x ; 1-byte first auxiliary information
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jsr CIOV ; vector to CIO
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@read:
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lda #0
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sta $348,x ; 1-byte low buffer length
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sta $349,x ; 1-byte high buffer length
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lda #7 ; get character(s)
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sta $342,x ; COMMAND CODE
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jsr $e456 ; vector to CIO
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sta ICBLL,x ; 1-byte low buffer length
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sta ICBLH,x ; 1-byte high buffer length
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lda #GETCHR ; get character(s)
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sta ICCOM,x ; COMMAND CODE
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jsr CIOV ; vector to CIO
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ldx #255
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stx $02fc ; GLOBAL VARIABLE FOR KEYBOARD
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stx CH ; GLOBAL VARIABLE FOR KEYBOARD
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rts
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@nokey:
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lda #0
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@ -1,3 +1,4 @@
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.include "atari.inc"
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.include "../inc/common.i"
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.export print_a
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@ -5,11 +6,6 @@
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.export print_cr
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.export cls
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.export beep
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.exportzp screen_current_row
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.exportzp screen_current_col
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screen_current_col = $55 ; 2-byte cursor column
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screen_current_row = $54 ; 1-byte cursor row
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.bss
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@ -25,11 +21,11 @@ char: .res 1
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print_a:
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cmp #10 ; is it a CR?
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bne @not_lf
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lda #155 ; CR/LF char
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lda #ATEOL ; CR/LF char
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@not_lf:
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cmp #13 ; is it a LF?
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bne @not_cr
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lda #155 ; CR/LF char
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lda #ATEOL ; CR/LF char
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@not_cr:
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sta char
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txa
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@ -37,13 +33,13 @@ print_a:
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tya
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pha
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ldax #1
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stax $0348 ; 2-byte buffer length
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stax ICBLL ; 2-byte buffer length
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ldax #char
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stax $0344 ; 2-byte buffer address
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ldx #11 ; put character(s)
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stx $0342 ; COMMAND CODE
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ldx #0
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jsr $e456 ; vector to CIO
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stax ICBAL ; 2-byte buffer address
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ldx #PUTCHR ; put character(s)
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stx ICCOM ; COMMAND CODE
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ldx #0 ; use IOCB #0
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jsr CIOV ; vector to CIO
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pla
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tay
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pla
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@ -54,21 +50,21 @@ print_a:
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; inputs: none
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; outputs: none
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print_cr:
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lda #155 ; CR/LF char
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lda #ATEOL ; CR/LF char
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jmp print_a
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; use ATARI CIOV function to clear the screen
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; inputs: none
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; outputs: none
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cls:
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lda #125 ; clear screen
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lda #ATCLR ; clear screen
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jmp print_a
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; use ATARI CIOV function to make a 'beep' noise
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; inputs: none
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; outputs: none
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beep:
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lda #253 ; beep char
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lda #ATBEL ; beep char
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jmp print_a
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print_a_inverse:
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@ -4,6 +4,7 @@
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; 1000 units per second. it doesn't have to be particularly accurate.
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; this Atari implementation requires the routine timer_vbl_handler be called 60 times per second
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.include "atari.inc"
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.include "../inc/common.i"
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.export timer_init
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@ -32,12 +33,12 @@ vbichain: .word 0
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timer_init:
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lda vbichain+1
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bne @handler_installed
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ldax $222 ; IMMEDIATE VERTICAL BLANK NMI VECTOR
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ldax VVBLKI ; IMMEDIATE VERTICAL BLANK NMI VECTOR
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stax vbichain ; save old immediate vector
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ldy #<timer_vbl_handler
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ldx #>timer_vbl_handler
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lda #6 ; STAGE 1 VBI
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jsr $e45c ; vector to set VBLANK parameters
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jsr SETVBV ; vector to set VBLANK parameters
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@handler_installed:
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lda #0
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sta current_time_value
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@ -52,7 +53,7 @@ timer_exit:
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ldy vbichain
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ldx vbichain+1
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lda #6 ; STAGE 1 VBI
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jsr $e45c ; vector to set VBLANK parameters
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jsr SETVBV ; vector to set VBLANK parameters
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@handler_not_installed:
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rts
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@ -104,7 +105,7 @@ timer_vbl_handler:
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: sta current_seconds
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@done:
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pla
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jmp $e45f ; vector to process immediate VBLANK
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jmp SYSVBV ; vector to process immediate VBLANK
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timer_seconds:
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lda current_seconds
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