a2d/desk.acc/calculator.s
Joshua Bell 8fdf8addc3 de-raw
2018-03-07 10:39:36 -08:00

1636 lines
46 KiB
ArmAsm

.setcpu "6502"
.include "apple2.inc"
.include "../inc/apple2.inc"
.include "../inc/prodos.inc"
.include "../mgtk.inc"
.include "../desktop.inc" ; redraw icons after window move, font
.include "../macros.inc"
.org $800
adjust_txtptr := $B1
;;; ============================================================
;;; Start of the code
start: jmp copy2aux
save_stack: .byte 0
;;; ============================================================
;;; Duplicate the DA (code and data) to AUX memory,
;;; then invoke the code in AUX.
.proc copy2aux
tsx
stx save_stack
start := call_init
end := da_end
dest := start
;; Copy the DA to AUX memory.
lda ROMIN2
copy16 #start, STARTLO
copy16 #end, ENDLO
copy16 #dest, DESTINATIONLO
sec ; main>aux
jsr AUXMOVE
;; Invoke it.
copy16 #start, XFERSTARTLO
php
pla
ora #$40 ; set overflow: use aux zp/stack
pha
plp
sec ; control main>aux
jmp XFER
.endproc
;;; ============================================================
.proc exit_da
lda LCBANK1
lda LCBANK1
ldx save_stack
txs
rts
.endproc
;;; ============================================================
call_init:
lda ROMIN2
jmp init
;; Used after a event_kind_drag-and-drop is completed;
;; redraws the window.
.proc redraw_screen_and_window
;; Redraw the desktop (by copying trampoline to ZP)
zp_stash := $20
lda LCBANK1
lda LCBANK1
ldx #sizeof_routine
: lda routine,x
sta zp_stash,x
dex
bpl :-
jsr zp_stash
;; Redraw window after event_kind_drag
lda ROMIN2
lda #da_window_id
jsr check_visibility_and_draw_window
;; ???
lda LCBANK1
lda LCBANK1
bit offscreen_flag ; BUG: https://github.com/inexorabletash/a2d/issues/33
bmi skip
DESKTOP_CALL DT_REDRAW_ICONS
;; ???
skip: lda #0
sta offscreen_flag
lda ROMIN2
MGTK_CALL MGTK::GetWinPort, getwinport_params
MGTK_CALL MGTK::SetPort, grafport
rts
.proc routine
sta RAMRDOFF
sta RAMWRTOFF
jsr JUMP_TABLE_REDRAW_ALL
sta RAMRDON
sta RAMWRTON
rts
.endproc
sizeof_routine := * - routine
.endproc
;;; ============================================================
;; Set when the client area is offscreen and
;; should not be painted.
offscreen_flag:
.byte 0
;; Called after window event_kind_drag is complete
;; (called with window_id in A)
.proc check_visibility_and_draw_window
sta getwinport_params_window_id
lda openwindow_params_top
cmp #screen_height - 1
bcc :+
lda #$80
sta offscreen_flag
rts
;; Is skipping this responsible for display redraw bug?
;; https://github.com/inexorabletash/a2d/issues/34
: MGTK_CALL MGTK::GetWinPort, getwinport_params
MGTK_CALL MGTK::SetPort, grafport
lda getwinport_params_window_id
cmp #da_window_id
bne :+
jmp draw_background
: rts
.endproc
;;; ============================================================
;;; Call Params (and other data)
;; The following params blocks overlap for data re-use
.proc screentowindow_params
window_id := *
screen := * + 1
screenx := * + 1 ; aligns with event_params::xcoord
screeny := * + 3 ; aligns with event_params::ycoord
window := * + 5
windowx := * + 5
windowy := * + 7
.endproc
.proc dragwindow_params
window_id := *
xcoord := * + 1 ; aligns with event_params::xcoord
ycoord := * + 3 ; aligns with event_params::ycoord
moved := * + 5 ; ignored
.endproc
.proc event_params
kind: .byte 0
xcoord := * ; if state is 0,1,2,4
ycoord := * + 2 ; "
key := * ; if state is 3
modifiers := * + 1 ; "
.endproc
.proc findwindow_params
mousex: .word 0 ; aligns with event_params::xcoord
mousey: .word 0 ; aligns with event_params::ycoord
which_area: .byte 0
window_id: .byte 0
.endproc
.byte 0, 0 ; fills out space for screentowindow_params
.byte 0, 0 ; ???
.proc trackgoaway_params
goaway: .byte 0
.endproc
.proc getwinport_params
window_id: .byte 0
.addr grafport
.endproc
getwinport_params_window_id := getwinport_params::window_id
.proc preserve_zp_params
flag: .byte MGTK::zp_preserve
.endproc
.proc overwrite_zp_params
flag: .byte MGTK::zp_overwrite
.endproc
;;; ============================================================
;;; Button Definitions
button_width := 17
button_height := 9
col1_left := 13
col1_right := col1_left+button_width ; 30
col2_left := 42
col2_right := col2_left+button_width ; 59
col3_left := 70
col3_right := col3_left+button_width ; 87
col4_left := 98
col4_right := col4_left+button_width ; 115
row1_top := 22
row1_bot := row1_top+button_height ; 31
row2_top := 38
row2_bot := row2_top+button_height ; 47
row3_top := 53
row3_bot := row3_top+button_height ; 62
row4_top := 68
row4_bot := row4_top+button_height ; 77
row5_top := 83
row5_bot := row5_top+button_height ; 92
border_lt := 1 ; border width pixels (left/top)
border_br := 2 ; (bottom/right)
.proc btn_c
viewloc: DEFINE_POINT col1_left - border_lt, row1_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte 'c'
pos: .word col1_left + 6, row1_bot
port: .word col1_left,row1_top,col1_right,row1_bot
.endproc
.proc btn_e
viewloc: DEFINE_POINT col2_left - border_lt, row1_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte 'e'
pos: .word col2_left + 6, row1_bot
port: .word col2_left,row1_top,col2_right,row1_bot
.endproc
.proc btn_eq
viewloc: DEFINE_POINT col3_left - border_lt, row1_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '='
pos: .word col3_left + 6, row1_bot
port: .word col3_left,row1_top,col3_right,row1_bot
.endproc
.proc btn_mul
viewloc: DEFINE_POINT col4_left - border_lt, row1_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '*'
pos: .word col4_left + 6, row1_bot
port: .word col4_left,row1_top,col4_right,row1_bot
.endproc
.proc btn_7
viewloc: DEFINE_POINT col1_left - border_lt, row2_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '7'
pos: .word col1_left + 6, row2_bot
port: .word col1_left,row2_top,col1_right,row2_bot
.endproc
.proc btn_8
viewloc: DEFINE_POINT col2_left - border_lt, row2_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '8'
pos: .word col2_left + 6, row2_bot
port: .word col2_left,row2_top,col2_right,row2_bot
.endproc
.proc btn_9
viewloc: DEFINE_POINT col3_left - border_lt, row2_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '9'
pos: .word col3_left + 6, row2_bot
port: .word col3_left,row2_top,col3_right,row2_bot
.endproc
.proc btn_div
viewloc: DEFINE_POINT col4_left - border_lt, row2_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '/'
pos: .word col4_left + 6, row2_bot
port: .word col4_left,row2_top,col4_right,row2_bot
.endproc
.proc btn_4
viewloc: DEFINE_POINT col1_left - border_lt, row3_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '4'
pos: .word col1_left + 6, row3_bot
port: .word col1_left,row3_top,col1_right,row3_bot
.endproc
.proc btn_5
viewloc: DEFINE_POINT col2_left - border_lt, row3_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '5'
pos: .word col2_left + 6, row3_bot
port: .word col2_left,row3_top,col2_right,row3_bot
.endproc
.proc btn_6
viewloc: DEFINE_POINT col3_left - border_lt, row3_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '6'
pos: .word col3_left + 6, row3_bot
port: .word col3_left,row3_top,col3_right,row3_bot
.endproc
.proc btn_sub
viewloc: DEFINE_POINT col4_left - border_lt, row3_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '-'
pos: .word col4_left + 6, row3_bot
port: .word col4_left,row3_top,col4_right,row3_bot
.endproc
.proc btn_1
viewloc: DEFINE_POINT col1_left - border_lt, row4_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '1'
pos: .word col1_left + 6, row4_bot
port: .word col1_left,row4_top,col1_right,row4_bot
.endproc
.proc btn_2
viewloc: DEFINE_POINT col2_left - border_lt, row4_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '2'
pos: .word col2_left + 6, row4_bot
port: .word col2_left,row4_top,col2_right,row4_bot
.endproc
.proc btn_3
viewloc: DEFINE_POINT col3_left - border_lt, row4_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '3'
pos: .word col3_left + 6, row4_bot
port: .word col3_left,row4_top,col3_right,row4_bot
.endproc
.proc btn_0
viewloc: DEFINE_POINT col1_left - border_lt, row5_top - border_lt
mapbits: .addr wide_button_bitmap
mapwidth: .byte 8 ; bitmap_stride (bytes)
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, 49, button_height + border_lt + border_br ; 0 is extra wide
label: .byte '0'
pos: .word col1_left + 6, row5_bot
port: .word col1_left,row5_top,col2_right,row5_bot
.endproc
.proc btn_dec
viewloc: DEFINE_POINT col3_left - border_lt, row5_top - border_lt
mapbits: .addr button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, button_height + border_lt + border_br
label: .byte '.'
pos: .word col3_left + 6 + 2, row5_bot ; + 2 to center the label
port: .word col3_left,row5_top,col3_right,row5_bot
.endproc
.proc btn_add
viewloc: DEFINE_POINT col4_left - border_lt, row4_top - border_lt
mapbits: .addr tall_button_bitmap
mapwidth: .byte bitmap_stride
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, button_width + border_lt + border_br, 27 ; + is extra tall
label: .byte '+'
pos: .word col4_left + 6, row5_bot
port: .word col4_left,row4_top,col4_right,row5_bot
.endproc
.byte 0 ; sentinel
;; Button bitmaps. These are used as bitmaps for
;; drawing the shadowed buttons.
;; bitmaps are low 7 bits, 0=black 1=white
bitmap_stride := 3 ; bytes
button_bitmap: ; bitmap for normal buttons
.byte px(%0000000),px(%0000000),px(%0000001)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0000000),px(%0000000),px(%0000000)
.byte px(%1000000),px(%0000000),px(%0000000)
wide_bitmap_stride := 8
wide_button_bitmap: ; bitmap for '0' button
.byte px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%1111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111110),px(%0111111)
.byte px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0111111)
.byte px(%1000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0111111)
tall_button_bitmap: ; bitmap for '+' button
.byte px(%0000000),px(%0000000),px(%0000001)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0111111),px(%1111111),px(%1111100)
.byte px(%0000000),px(%0000000),px(%0000000)
.byte px(%1000000),px(%0000000),px(%0000000)
;;; ============================================================
;;; Calculation state
saved_stack:
.byte $00 ; restored after error
calc_p: .byte $00 ; high bit set if pending op?
calc_op:.byte $00
calc_d: .byte $00 ; '.' if decimal present, 0 otherwise
calc_e: .byte $00 ; exponential?
calc_n: .byte $00 ; negative?
calc_g: .byte $00 ; high bit set if last input digit
calc_l: .byte $00 ; input length
;;; ============================================================
;;; Miscellaneous param blocks
.proc background_box_params
left: .word 1
top: .word 0
right: .word 129
bottom: .word 96
.endproc
background_pattern:
.byte $77,$DD,$77,$DD,$77,$DD,$77,$DD
.byte $00
black_pattern:
.res 8, $00
.byte $00
white_pattern:
.res 8, $FF
.byte $00
.proc settextbg_params
backcolor: .byte $7F
.endproc
display_left := 10
display_top := 5
display_width := 120
display_height := 17
.proc frame_display_params
left: .word display_left
top: .word display_top
width: .word display_width
height: .word display_height
.endproc
.proc clear_display_params
left: .word display_left+1
top: .word display_top+1
width: .word display_width-1
height: .word display_height-1
.endproc
;; For drawing 1-character strings (button labels)
.proc drawtext_params_label
.addr label
.byte 1
.endproc
label: .byte 0 ; modified with char to draw
.proc drawtext_params1
textptr: .addr text_buffer1
textlen: .byte 15
.endproc
text_buffer_size := 14
text_buffer1:
.res text_buffer_size+2, 0
.proc drawtext_params2
textptr: .addr text_buffer2
textlen: .byte 15
.endproc
text_buffer2:
.res text_buffer_size+2, 0
spaces_string:
DEFINE_STRING " "
error_string:
DEFINE_STRING "Error "
;; used when clearing display; params to a $18 call
.proc textwidth_params
textptr: .addr text_buffer1
textlen: .byte 15 ; ???
result: .word 0
.endproc
da_window_id = 52
.proc closewindow_params
window_id: .byte da_window_id
.endproc
.proc text_pos_params3
left: .word 0
base: .word 16
.endproc
.proc text_pos_params2
left: .word 15
base: .word 16
.endproc
.proc error_pos
left: .word 69
base: .word 16
.endproc
farg: .byte $00,$00,$00,$00,$00,$00
.proc title_bar_bitmap ; Params for MGTK::PaintBits
viewloc: DEFINE_POINT 115, AS_WORD -9, viewloc
mapbits: .addr pixels
mapwidth: .byte 1
reserved: .byte 0
maprect: DEFINE_RECT 0, 0, 6, 5
;; (not part of struct, but not referenced outside)
pixels: .byte px(%1000001)
.byte px(%1010110)
.byte px(%1110001)
.byte px(%1110110)
.byte px(%0110110)
.byte px(%1001001)
.endproc
.proc grafport
viewloc: DEFINE_POINT 0, 0
mapbits: .word 0
mapwidth: .word 0
cliprect: DEFINE_RECT 0, 0, 0, 0
pattern: .res 8, 0
colormasks: .byte 0, 0
penloc: DEFINE_POINT 0, 0
penwidth: .byte 0
penheight: .byte 0
penmode: .byte 0
textback: .byte 0
textfont: .addr 0
.endproc
.assert * - grafport = 36, error
.byte 0 ; ???
menu_bar_height := 13
screen_width := 560
screen_height := 192
;; params for MGTK::SetPortBits when decorating title bar
.proc screen_port
left: .word 0
top: .word menu_bar_height
mapbits: .word MGTK::screen_mapbits
mapwidth: .word MGTK::screen_mapwidth
hoff: .word 0
voff: .word 0
width: .word screen_width - 1
height: .word screen_height - menu_bar_height - 2
.endproc
.proc penmode_normal
penmode: .byte MGTK::pencopy
.endproc
.byte $01,$02 ; ??
.proc penmode_xor
penmode: .byte MGTK::notpenXOR
.endproc
window_width := 130
window_height := 96
default_left := 210
default_top := 60
.proc winfo
window_id: .byte da_window_id
options: .byte MGTK::option_go_away_box
title: .addr window_title
hscroll: .byte MGTK::scroll_option_none
vscroll: .byte MGTK::scroll_option_none
hthumbmax: .byte 0
hthumbpos: .byte 0
vthumbmax: .byte 0
vthumbpos: .byte 0
status: .byte 0
reserved: .byte 0
mincontwidth: .word window_width
mincontlength: .word window_height
maxcontwidth: .word window_width
maxcontlength: .word window_height
left: .word default_left
top: .word default_top
mapbits: .addr MGTK::screen_mapbits
mapwidth: .word MGTK::screen_mapwidth
cliprect: DEFINE_RECT 0, 0, window_width, window_height
pattern: .res 8, $FF
colormasks: .byte MGTK::colormask_and, MGTK::colormask_or
penloc: DEFINE_POINT 0, 0
penwidth: .byte 1
penheight: .byte 1
penmode: .byte 0
textback: .byte $7f
textfont: .addr DEFAULT_FONT
nextwinfo: .addr 0
.endproc
openwindow_params_top := winfo::top
window_title:
PASCAL_STRING "Calc"
cursor: .byte px(%0000000),px(%0000000) ; cursor
.byte px(%0100000),px(%0000000)
.byte px(%0110000),px(%0000000)
.byte px(%0111000),px(%0000000)
.byte px(%0111100),px(%0000000)
.byte px(%0111110),px(%0000000)
.byte px(%0111111),px(%0000000)
.byte px(%0101100),px(%0000000)
.byte px(%0000110),px(%0000000)
.byte px(%0000110),px(%0000000)
.byte px(%0000011),px(%0000000)
.byte px(%0000000),px(%0000000)
.byte px(%1100000),px(%0000000) ; mask
.byte px(%1110000),px(%0000000)
.byte px(%1111000),px(%0000000)
.byte px(%1111100),px(%0000000)
.byte px(%1111110),px(%0000000)
.byte px(%1111111),px(%0000000)
.byte px(%1111111),px(%1000000)
.byte px(%1111111),px(%0000000)
.byte px(%0001111),px(%0000000)
.byte px(%0001111),px(%0000000)
.byte px(%0000111),px(%1000000)
.byte px(%0000111),px(%1000000)
.byte 1, 1 ; hotspot
;;; ============================================================
;;; DA Init
init: sta ALTZPON
lda LCBANK1
lda LCBANK1
MGTK_CALL MGTK::SetZP1, preserve_zp_params
MGTK_CALL MGTK::OpenWindow, winfo
MGTK_CALL MGTK::InitPort, grafport
MGTK_CALL MGTK::SetPort, grafport ; set clipping bounds?
MGTK_CALL MGTK::FlushEvents
lda #$01
sta event_params::kind
MGTK_CALL MGTK::PostEvent, event_params
MGTK_CALL MGTK::GetEvent, event_params
lda ROMIN2
jsr reset_buffer2
lda #da_window_id
jsr check_visibility_and_draw_window
jsr reset_buffers_and_display
lda #'=' ; last operation
sta calc_op
lda #0 ; clear registers
sta calc_p
sta calc_d
sta calc_e
sta calc_n
sta calc_g
sta calc_l
.proc copy_to_b1
ldx #sizeof_adjust_txtptr_copied + 4 ; should be just + 1 ?
loop: lda adjust_txtptr_copied-1,x
sta adjust_txtptr-1,x
dex
bne loop
.endproc
lda #0 ; Turn off errors
sta ERRFLG
copy16 #error_hook, COUT_HOOK ; set up FP error handler
lda #1
jsr FLOAT
ldxy #farg
jsr ROUND
lda #0 ; set FAC to 0
jsr FLOAT
jsr FADD
jsr FOUT
lda #$07
jsr FMULT
lda #$00
jsr FLOAT
ldxy #farg
jsr ROUND
tsx
stx saved_stack
lda #'='
jsr process_key
lda #'C'
jsr process_key
;; previous draws mangle the cursor (why???)
MGTK_CALL MGTK::SetCursor, cursor ; Why not use JUMP_TABLE_CUR_POINTER ?
;; fall through
;;; ============================================================
;;; Input Loop
input_loop:
MGTK_CALL MGTK::GetEvent, event_params
lda event_params::kind
cmp #MGTK::event_kind_button_down
bne :+
jsr on_click
jmp input_loop
: cmp #MGTK::event_kind_key_down
bne input_loop
jsr on_key_press
jmp input_loop
;;; ============================================================
;;; On Click
on_click:
lda LCBANK1
lda LCBANK1
MGTK_CALL MGTK::FindWindow, findwindow_params
lda ROMIN2
lda findwindow_params::which_area
cmp #MGTK::area_content
bcc ignore_click
lda findwindow_params::window_id
cmp #da_window_id ; This window?
beq :+
ignore_click:
rts
: lda findwindow_params::which_area
cmp #MGTK::area_content ; Client area?
bne :+
jsr map_click_to_button ; try to translate click into key
bcc ignore_click
jmp process_key
: cmp #MGTK::area_close_box ; Close box?
bne :+
MGTK_CALL MGTK::TrackGoAway, trackgoaway_params
lda trackgoaway_params::goaway
beq ignore_click
exit: lda LCBANK1
lda LCBANK1
MGTK_CALL MGTK::CloseWindow, closewindow_params
DESKTOP_CALL DT_REDRAW_ICONS
lda ROMIN2
MGTK_CALL MGTK::SetZP1, overwrite_zp_params
.proc do_close
;; Copy following routine to ZP and invoke it
zp_stash := $20
ldx #sizeof_routine
loop: lda routine,x
sta zp_stash,x
dex
bpl loop
jmp zp_stash
.proc routine
sta RAMRDOFF
sta RAMWRTOFF
jmp exit_da
.endproc
sizeof_routine := * - routine ; Can't use .sizeof before the .proc definition
.endproc
: cmp #MGTK::area_dragbar ; Title bar?
bne ignore_click
lda #da_window_id
sta dragwindow_params::window_id
lda LCBANK1
lda LCBANK1
MGTK_CALL MGTK::DragWindow, dragwindow_params
lda ROMIN2
jsr redraw_screen_and_window
rts
;;; ============================================================
;;; On Key Press
.proc on_key_press
lda event_params::modifiers
bne bail
lda event_params::key
cmp #CHAR_ESCAPE
bne trydel
lda calc_p
bne clear ; empty state?
lda calc_l
beq exit ; if so, exit DA
clear: lda #'C' ; otherwise turn Escape into Clear
trydel: cmp #CHAR_DELETE ; Delete?
beq :+
cmp #$60 ; lowercase range?
bcc :+
and #$5F ; convert to uppercase
: jmp process_key
bail:
.endproc
rts1: rts ; used by next proc
;;; ============================================================
;;; Try to map a click to a button
;;; If a button was clicked, carry is set and accum has key char
.proc map_click_to_button
lda #da_window_id
sta screentowindow_params::window_id
MGTK_CALL MGTK::ScreenToWindow, screentowindow_params
lda screentowindow_params::windowx+1 ; ensure high bits of coords are 0
ora screentowindow_params::windowy+1
bne rts1
lda screentowindow_params::windowy
ldx screentowindow_params::windowx
.proc find_button_row
cmp #row1_top+border_lt - 1 ; row 1 ? (- 1 is bug in original?)
bcc miss
cmp #row1_bot+border_br + 1 ; (+ 1 is bug in original?)
bcs :+
jsr find_button_col
bcc miss
lda row1_lookup,x
rts
: cmp #row2_top-border_lt ; row 2?
bcc miss
cmp #row2_bot+border_br
bcs :+
jsr find_button_col
bcc miss
lda row2_lookup,x
rts
: cmp #row3_top-border_lt ; row 3?
bcc miss
cmp #row3_bot+border_br
bcs :+
jsr find_button_col
bcc miss
lda row3_lookup,x
rts
: cmp #row4_top-border_lt ; row 4?
bcc miss
cmp #row4_bot+border_br
bcs :+
jsr find_button_col
bcc miss
sec
lda row4_lookup,x
rts
: cmp #row5_top-border_lt ; special case for tall + button
bcs :+
lda screentowindow_params::windowx
cmp #col4_left-border_lt
bcc miss
cmp #col4_right+border_br-1 ; is -1 bug in original?
bcs miss
lda #'+'
sec
rts
: cmp #row5_bot+border_br ; row 5?
bcs miss
jsr find_button_col
bcc :+
lda row5_lookup,x
rts
: lda screentowindow_params::windowx ; special case for wide 0 button
cmp #col1_left-border_lt
bcc miss
cmp #col2_right+border_br
bcs miss
lda #'0'
sec
rts
miss: clc
rts
.endproc
row1_lookup := *-1
.byte 'C', 'E', '=', '*'
row2_lookup := *-1
.byte '7', '8', '9', '/'
row3_lookup := *-1
.byte '4', '5', '6', '-'
row4_lookup := *-1
.byte '1', '2', '3', '+'
row5_lookup := *-1
.byte '0', '0', '.', '+'
.proc find_button_col
cpx #col1_left-border_lt ; col 1?
bcc miss
cpx #col1_right+border_br
bcs :+
ldx #1
sec
rts
: cpx #col2_left-border_lt ; col 2?
bcc miss
cpx #col2_right+border_br
bcs :+
ldx #2
sec
rts
: cpx #col3_left-border_lt ; col 3?
bcc miss
cpx #col3_right+border_br
bcs :+
ldx #3
sec
rts
: cpx #col4_left-border_lt ; col 4?
bcc miss
cpx #col4_right+border_br - 1 ; bug in original?
bcs miss
ldx #4
sec
rts
miss: clc
rts
.endproc
.endproc
;;; ============================================================
;;; Handle Key
;;; Accumulator is set to key char. Also used by
;;; click handlers (button is mapped to key char)
;;; and during initialization (by sending 'C', etc)
.proc process_key
cmp #'C' ; Clear?
bne :+
ldxy #btn_c::port
lda #'c'
jsr depress_button
lda #$00
jsr FLOAT
ldxy #farg
jsr ROUND
lda #'='
sta calc_op
lda #0
sta calc_p
sta calc_l
sta calc_d
sta calc_e
sta calc_n
jmp reset_buffers_and_display
: cmp #'E' ; Exponential?
bne try_eq
ldxy #btn_e::port
lda #'e'
jsr depress_button
ldy calc_e
bne rts1
ldy calc_l
bne :+
inc calc_l
lda #'1'
sta text_buffer1 + text_buffer_size
sta text_buffer2 + text_buffer_size
: lda #'E'
sta calc_e
jmp update
rts1: rts
try_eq: cmp #'=' ; Equals?
bne :+
pha
ldxy #btn_eq::port
jmp do_op_click
: cmp #'*' ; Multiply?
bne :+
pha
ldxy #btn_mul::port
jmp do_op_click
: cmp #'.' ; Decimal?
bne try_add
ldxy #btn_dec::port
jsr depress_button
lda calc_d
ora calc_e
bne rts2
lda calc_l
bne :+
inc calc_l
: lda #'.'
sta calc_d
jmp update
rts2: rts
try_add:cmp #'+' ; Add?
bne :+
pha
ldxy #btn_add::port
jmp do_op_click
: cmp #'-' ; Subtract?
bne trydiv
pha
ldxy #btn_sub::port
lda calc_e ; negate vs. subtract
beq :+
lda calc_n
bne :+
sec
ror calc_n
pla
pha
jmp do_digit_click
: pla
pha
jmp do_op_click
trydiv: cmp #'/' ; Divide?
bne :+
pha
ldxy #btn_div::port
jmp do_op_click
: cmp #'0' ; Digit 0?
bne :+
pha
ldxy #btn_0::port
jmp do_digit_click
: cmp #'1' ; Digit 1?
bne :+
pha
ldxy #btn_1::port
jmp do_digit_click
: cmp #'2' ; Digit 2?
bne :+
pha
ldxy #btn_2::port
jmp do_digit_click
: cmp #'3' ; Digit 3?
bne :+
pha
ldxy #btn_3::port
jmp do_digit_click
: cmp #'4' ; Digit 4?
bne :+
pha
ldxy #btn_4::port
jmp do_digit_click
: cmp #'5' ; Digit 5?
bne :+
pha
ldxy #btn_5::port
jmp do_digit_click
: cmp #'6' ; Digit 6?
bne :+
pha
ldxy #btn_6::port
jmp do_digit_click
: cmp #'7' ; Digit 7?
bne :+
pha
ldxy #btn_7::port
jmp do_digit_click
: cmp #'8' ; Digit 8?
bne :+
pha
ldxy #btn_8::port
jmp do_digit_click
: cmp #'9' ; Digit 9?
bne :+
pha
ldxy #btn_9::port
jmp do_digit_click
: cmp #$7F ; Delete?
bne end
ldy calc_l
beq end
cpy #1
bne :+
jsr reset_buffer1_and_state
jmp display_buffer1
: dec calc_l
ldx #0
lda text_buffer1 + text_buffer_size
cmp #'.'
bne :+
stx calc_d
: cmp #'E'
bne :+
stx calc_e
: cmp #'-'
bne :+
stx calc_n
: ldx #text_buffer_size-1
loop: lda text_buffer1,x
sta text_buffer1+1,x
sta text_buffer2+1,x
dex
dey
bne loop
lda #' '
sta text_buffer1+1,x
sta text_buffer2+1,x
jmp display_buffer1
end: rts
.endproc
do_digit_click:
jsr depress_button
bne :+
pla
rts
: pla
update: sec
ror calc_g
ldy calc_l
bne :+
pha
jsr reset_buffer2
pla
cmp #'0'
bne :+
jmp display_buffer1
: sec
ror calc_p
cpy #$0A
bcs rts3
pha
ldy calc_l
beq empty
lda #$0F
sec
sbc calc_l
tax
: lda text_buffer1,x
sta text_buffer1-1,x
sta text_buffer2-1,x
inx
dey
bne :-
empty: inc calc_l
pla
sta text_buffer1 + text_buffer_size
sta text_buffer2 + text_buffer_size
jmp display_buffer1
rts3: rts
.proc do_op_click
jsr depress_button
bne :+
pla
rts
: lda calc_op
cmp #'='
bne :+
lda calc_g
bne reparse
lda #$00
jsr FLOAT
jmp do_op
: lda calc_g
bne reparse
pla
sta calc_op
jmp reset_buffer1_and_state
reparse:copy16 #text_buffer1, TXTPTR
jsr adjust_txtptr
jsr FIN
do_op: pla
ldx calc_op
sta calc_op
lda #<farg
ldy #>farg
cpx #'+'
bne :+
jsr FADD
jmp post_op
: cpx #'-'
bne :+
jsr FSUB
jmp post_op
: cpx #'*'
bne :+
jsr FMULT
jmp post_op
: cpx #'/'
bne :+
jsr FDIV
jmp post_op
: cpx #'='
bne post_op
ldy calc_g
bne post_op
jmp reset_buffer1_and_state
.endproc
.proc post_op
ldxy #farg ; after the FP operation is done
jsr ROUND
jsr FOUT ; output as null-terminated string to FBUFFR
ldy #0 ; count the eize
sloop: lda FBUFFR,y
beq :+
iny
bne sloop
: ldx #text_buffer_size ; copy to text buffers
cloop: lda FBUFFR-1,y
sta text_buffer1,x
sta text_buffer2,x
dex
dey
bne cloop
cpx #0 ; pad out with spaces if needed
bmi end
pad: lda #' '
sta text_buffer1,x
sta text_buffer2,x
dex
bpl pad
end: jsr display_buffer1
; fall through
.endproc
.proc reset_buffer1_and_state
jsr reset_buffer1
lda #0
sta calc_l
sta calc_d
sta calc_e
sta calc_n
sta calc_g
rts
.endproc
.proc depress_button
button_state := $FC
stx invert_addr
stx inrect_params
stx restore_addr
sty invert_addr+1
sty inrect_params+1
sty restore_addr+1
MGTK_CALL MGTK::SetPattern, black_pattern
MGTK_CALL MGTK::SetPenMode, penmode_xor
sec
ror button_state
invert: MGTK_CALL MGTK::PaintRect, 0, invert_addr ; Inverts port
check_button:
MGTK_CALL MGTK::GetEvent, event_params
lda event_params::kind
cmp #MGTK::event_kind_drag ; Button down?
bne done ; Nope, done immediately
lda #da_window_id
sta screentowindow_params::window_id
MGTK_CALL MGTK::ScreenToWindow, screentowindow_params
MGTK_CALL MGTK::MoveTo, screentowindow_params::window
MGTK_CALL MGTK::InRect, 0, inrect_params
bne inside
lda button_state ; outside, not down
beq check_button ; so keep looping
lda #0 ; outside, was down
sta button_state ; so set up
beq invert ; and show it
inside: lda button_state ; inside, and down
bne check_button ; so keep looking
sec ; inside, was not down
ror button_state ; so set down
jmp invert ; and show it
done: lda button_state ; high bit set if button down
beq :+
MGTK_CALL MGTK::PaintRect, 0, restore_addr ; Inverts back to normal
: MGTK_CALL MGTK::SetPenMode, penmode_normal ; Normal draw mode??
lda button_state
rts
.endproc
;;; ============================================================
;;; Value Display
.proc reset_buffer1
ldy #text_buffer_size
loop: lda #' '
sta text_buffer1-1,y
dey
bne loop
lda #'0'
sta text_buffer1 + text_buffer_size
rts
.endproc
.proc reset_buffer2
ldy #text_buffer_size
loop: lda #' '
sta text_buffer2-1,y
dey
bne loop
lda #'0'
sta text_buffer2 + text_buffer_size
rts
.endproc
.proc reset_buffers_and_display
jsr reset_buffer1
jsr reset_buffer2
; fall through
.endproc
.proc display_buffer1
ldxy #text_buffer1
jsr pre_display_buffer
MGTK_CALL MGTK::DrawText, drawtext_params1
rts
.endproc
.proc display_buffer2
ldxy #text_buffer2
jsr pre_display_buffer
MGTK_CALL MGTK::DrawText, drawtext_params2
rts
.endproc
.proc pre_display_buffer
stx textwidth_params::textptr ; text buffer address in x,y
sty textwidth_params::textptr+1
MGTK_CALL MGTK::TextWidth, textwidth_params
lda #display_width-15 ; ???
sec
sbc textwidth_params::result
sta text_pos_params3::left
MGTK_CALL MGTK::MoveTo, text_pos_params2 ; clear with spaces
MGTK_CALL MGTK::DrawText, spaces_string
MGTK_CALL MGTK::MoveTo, text_pos_params3 ; set up for display
rts
.endproc
;;; ============================================================
;;; Draw the window contents (background, buttons)
.proc draw_background
;; Frame
MGTK_CALL MGTK::HideCursor
MGTK_CALL MGTK::SetPattern, background_pattern
MGTK_CALL MGTK::PaintRect, background_box_params
MGTK_CALL MGTK::SetPattern, black_pattern
MGTK_CALL MGTK::FrameRect, frame_display_params
MGTK_CALL MGTK::SetPattern, white_pattern
MGTK_CALL MGTK::PaintRect, clear_display_params
MGTK_CALL MGTK::SetTextBG, settextbg_params
;; fall through
.endproc
.proc draw_buttons
;; Buttons
ptr := $FA
copy16 #btn_c, ptr
loop: ldy #0
lda (ptr),y
beq draw_title_bar ; done!
lda ptr ; address for shadowed rect params
sta bitmap_addr
ldy ptr+1
sty bitmap_addr+1
clc ; address for label pos
adc #(btn_c::pos - btn_c)
sta text_addr
bcc :+
iny
: sty text_addr+1
ldy #(btn_c::label - btn_c) ; label
lda (ptr),y
sta label
MGTK_CALL MGTK::PaintBits, 0, bitmap_addr ; draw shadowed rect
MGTK_CALL MGTK::MoveTo, 0, text_addr ; button label pos
MGTK_CALL MGTK::DrawText, drawtext_params_label ; button label text
lda ptr ; advance to next record
clc
adc #.sizeof(btn_c)
sta ptr
bcc loop
inc ptr+1
jmp loop
.endproc
;;; ============================================================
;;; Draw the title bar decoration
draw_title_bar:
offset_left := 115 ; pixels from left of client area
offset_top := 22 ; pixels from top of client area (up!)
ldx winfo::left+1
lda winfo::left
clc
adc #offset_left
sta title_bar_bitmap::viewloc::xcoord
bcc :+
inx
: stx title_bar_bitmap::viewloc::xcoord+1
ldx winfo::top+1
lda winfo::top
sec
sbc #offset_top
sta title_bar_bitmap::viewloc::ycoord
bcs :+
dex
: stx title_bar_bitmap::viewloc::ycoord+1
MGTK_CALL MGTK::SetPortBits, screen_port ; set clipping rect to whole screen
MGTK_CALL MGTK::PaintBits, title_bar_bitmap ; Draws decoration in title bar
lda #da_window_id
sta getwinport_params::window_id
MGTK_CALL MGTK::GetWinPort, getwinport_params
MGTK_CALL MGTK::SetPort, grafport
MGTK_CALL MGTK::ShowCursor
jsr display_buffer2
rts
;; Traps FP error via call to $36 from MON.COUT, resets stack
;; and returns to the input loop.
.proc error_hook
jsr reset_buffers_and_display
MGTK_CALL MGTK::MoveTo, error_pos
MGTK_CALL MGTK::DrawText, error_string
jsr reset_buffer1_and_state
lda #'='
sta calc_op
ldx saved_stack
txs
jmp input_loop
.endproc
;; Following proc is copied to $B1
save_org := *
.proc adjust_txtptr_copied
.org $B1
dummy_addr := $EA60
loop: inc TXTPTR
bne :+
inc TXTPTR+1
.assert * + 1 = TXTPTR, error, "misaligned routine"
: lda dummy_addr ; this ends up being aligned on TXTPTR
cmp #'9'+1 ; after digits?
bcs end
cmp #' ' ; space? keep going
beq loop
sec
sbc #'0' ; convert to digit...
sec
sbc #$D0 ; carry set if successful
end: rts
.endproc
.org save_org + .sizeof(adjust_txtptr_copied)
sizeof_adjust_txtptr_copied := .sizeof(adjust_txtptr_copied)
da_end := *