mirror of
https://github.com/fadden/6502bench.git
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851 lines
21 KiB
NASM
851 lines
21 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; cda.asm - HardPressed classic desk accessory
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; Copyright (C) 1993 by Andy McFadden
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;
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; This is an example of communication with HardPressed. It illustrates
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; getting and setting the INIT's status with SendRequest. The calls used
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; here are the ONLY ones which are guaranteed to exist in future versions
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; of HardPressed.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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CASE ON
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OBJCASE ON
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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Header START
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;
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; System-required header for the CDA.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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dc I1'str_end-str_begin'
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str_begin anop
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dc C'HardPressed Control'
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str_end anop
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dc A4'Main'
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dc A4'ShutDown'
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dc C'Copyright (C) 1993 by Andy McFadden',H'00'
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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Globals DATA
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;
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; Program-wide defs.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; DP defs
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;
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ptr gequ $00 ;4b
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ptr2 gequ $04 ;4b
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;
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; Softswitches
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;
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CLR80VID equ $e0c00c
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SETALTCHR equ $e0c00f
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;
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; Global variables
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;
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global_mode ds 2
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global_flags ds 2
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; CDA display status
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dMaxOpt equ 2
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hilite_opt ds 2
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stat_tab anop
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stat1 ds 2
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stat2 ds 2
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max_tab anop
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max1 dc I2'3' ;3 states for item 1
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max2 dc I2'2' ;2 here
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;
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; reasons for failure
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;
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failP8 gequ 1
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failInactive gequ 2
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failBusy gequ 3
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;
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; Text screen line offsets
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;
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texttab ANOP
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dc I2'$400,$480,$500,$580,$600,$680,$700,$780'
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dc I2'$428,$4a8,$528,$5a8,$628,$6a8,$728,$7a8'
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dc I2'$450,$4d0,$550,$5d0,$650,$6d0,$750,$7d0'
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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Main START
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;
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; Calling conventions:
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; (called by control panel)
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;
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; Stack is on page 1, DP is on page 0.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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using MesgData
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using Globals
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phb
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phk
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plb
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; see if GS/OS is active
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lda >$e100bc ;OS_KIND
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and #$00ff
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cmp #$0001 ;GS/OS
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beq is_gsos
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lda #failP8
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jmp ErrorMain
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is_gsos anop
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; see if HardPressed is active
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lda #dMping
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ldx #$0000 ;no data_in
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txy
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jsr SendMsg ;leaves version in data_out+$02
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bcc hp_active ;if no error, HP is up
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; cmp #$0120 ;reqNotAccepted
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; beq nohear ;else probably $0122 (invalidReq)
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inactive anop
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lda #failInactive
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jmp ErrorMain
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hp_busy anop
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lda #failBusy
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jmp ErrorMain
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hp_active anop
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lda #dMgetStatus
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ldx #$0000 ;no data_in
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txy
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jsr SendMsg ;failure here probably means that
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bcs hp_busy ; HP is busy (must be _AlertWindow)
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;
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; From here on, assume HardPressed is active and functioning normally.
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;
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lda data_out+2 ;split the mode and the flags into
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tax ; two parts
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and #$00ff
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sta global_mode
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txa
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and #$ff00
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sta global_flags
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lda #$0000
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jsr InitScreen ;set 40 cols, clear, draw border
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; init menu stuff
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stz hilite_opt
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ldx #$0000
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lda global_mode
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cmp #dVpolOn
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beq got_pol
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inx
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cmp #dVpolDecode
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beq got_pol
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inx
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got_pol anop
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stx stat1
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ldx #$0000
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lda global_flags
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bit #fGverify
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beq got_ver
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inx
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got_ver anop
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stx stat2
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;
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; main loop
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;
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redraw_loop ANOP
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jsr DrawScreen
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key_loop ANOP
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jsr GetKey
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cmp #$000d ;return?
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beq save_status
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cmp #$001b ;escape?
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bne not_esc
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brl escape_hit
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not_esc anop
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cmp #$000a ;Ctrl-J (down arrow)?
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beq dn
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cmp #$000b ;Ctrl-K (up arrow)?
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beq up
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cmp #$0008 ;Ctrl-H (left arrow)?
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beq left
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cmp #$0015 ;Ctrl-U (right arrow)?
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beq right
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pea $0008 ;sbBadKeypress
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ldx #$3803 ;_SysBeep2
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jsl $e10000
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bra key_loop
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dn anop
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lda hilite_opt
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inc A
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sta hilite_opt
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cmp #dMaxOpt
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blt redraw_loop
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stz hilite_opt
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bra redraw_loop
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up anop
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lda hilite_opt
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dec A
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bpl upstore
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lda #dMaxOpt-1
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upstore anop
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sta hilite_opt
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bra redraw_loop
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right anop
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lda hilite_opt
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asl A
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tax
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lda stat_tab,x
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inc A
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cmp max_tab,x
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blt rightstore
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lda #$0000
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rightstore anop
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sta stat_tab,x
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bra redraw_loop
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left anop
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lda hilite_opt
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asl A
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tax
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lda stat_tab,x
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dec A
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bpl leftstore
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lda max_tab,x
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dec A
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leftstore anop
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sta stat_tab,x
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bra redraw_loop
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;
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; If return was hit, send the new status to the INIT
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;
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save_status ANOP
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ldx #dVpolOn ;translate the menu index into
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lda stat1 ; the HP state value
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beq got_opol
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ldx #dVpolDecode
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cmp #$0001
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beq got_opol
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ldx #dVpolOff
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got_opol anop
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stx global_mode
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; set/clear the "verify" flag without disturbing any of the others
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lda #fGverify ;verify flag
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ldx stat2 ;is verify on?
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beq v_off
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tsb global_flags ;enable verify
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bra v_set
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v_off anop
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trb global_flags ;disable verify
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v_set anop
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lda global_mode ;now put it together with the mode
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ora global_flags
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tay ;lo word is status
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ldx #$0000 ;hi word is zero
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lda #dMsetStatus
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jsr SendMsg
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bcc Done
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pea $000c ;sbOperationFailed
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ldx #$3803 ;_SysBeep2
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jsl $e10000
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bra Done
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; if escape was hit, just exit
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escape_hit ANOP
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Done ANOP
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plb
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rtl
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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ErrorMain START
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;
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; Calling conventions:
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; JMP from Main with reason for failure in Acc
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;
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; Displays a screen which tells the user why he/she/it can't use the CDA at
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; this time.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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using Globals
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sta fail_cause
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lda #$0001
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jsr InitScreen
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;
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; Just draw the message from here
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;
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phb
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pea $e0e0 ;write to text page in bank $e0
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plb
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plb
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ldx #11*2
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lda >texttab,x
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clc
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adc #3 ;start at column 4
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sta <ptr
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lda >fail_cause
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cmp #failP8
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bne fail2
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fail1 anop
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lda #fail_p8
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bra fail_comm
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fail2 anop
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cmp #failInactive
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bne fail3
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lda #fail_hp
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bra fail_comm
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fail3 anop
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lda #fail_busy
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fail_comm anop
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sta <ptr2
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lda #fail_msg|-16
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sta <ptr2+2
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sep #$20
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LONGA OFF
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ldy #$0000
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stat_loop anop
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lda [<ptr2],y
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beq stat_done
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sta (ptr),y
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iny
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bra stat_loop
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stat_done anop
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rep #$20
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LONGA ON
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plb
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;
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; Wait for keypress, then bail
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;
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key_loop anop
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jsr GetKey
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cmp #$0020 ;space? (also error result)
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beq Done
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cmp #$000d ;return?
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beq Done
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cmp #$001b ;escape?
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bne key_loop
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Done ANOP
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plb
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rtl
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fail_cause ds 2
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fail_msg anop
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MSB ON
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fail_p8 dc C" Not accessible from ProDOS 8",H'00'
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fail_hp dc C" HardPressed is not loaded",H'00'
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fail_busy dc C" HardPressed is busy doing stuff",H'00'
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MSB OFF
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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ShutDown START
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;
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; (does nothing useful)
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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rtl
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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GetKey START
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;
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; Calling conventions:
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; JSR
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; Returns with key hit in Acc
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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pha
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ldx #$0606 ;_EMStatus
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jsl $e10000
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pla
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beq inactive
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; EM is active, so use it
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active ANOP
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pea $0000
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pea $0028 ;keyDown and autoKey events only
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pea event_rec|-16
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pea event_rec
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ldx #$0a06 ;_GetNextEvent
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jsl $e10000
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pla ;boolean handleEventFlag
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bcs Fail
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beq active ;flag was 0, skip it
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lda message
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bra Done
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; event manager not active, just poll the keyboard
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inactive ANOP
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sep #$20
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LONGA OFF
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sta >$e0c010
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lp lda >$e0c000
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bpl lp
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sta >$e0c010
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rep #$20
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LONGA ON
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and #$007f
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Done ANOP
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rts
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Fail ANOP
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lda #$0020 ;call it a space bar
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rts
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event_rec anop
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what ds 2
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message ds 4
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when ds 4
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where ds 4
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modifiers ds 2
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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InitScreen START
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;
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; Calling conventions:
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; JSR with 0 or 1 in acc (indicating normal or error start)
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;
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; Sets 40 columns and mousetext, then draws the title, border, and key
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; instructions.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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using Globals
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sta err_flag
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phb
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pea $e0e0 ;write to text page in bank $e0
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plb
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plb
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sep #$20
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LONGA OFF
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sta |CLR80VID ;set 40 columns
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sta |SETALTCHR ;we want MouseText
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rep #$20
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LONGA ON
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home ANOP
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ldx #23*2
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loop anop
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lda >texttab,x
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sta <ptr
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ldy #38
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loop2 anop
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lda #$a0a0
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sta (ptr),y
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dey
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dey
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bpl loop2
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dex
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dex
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bpl loop
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title ANOP
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lda >texttab ;addr of line 0 ($400, duh)
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sta ptr
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ldx #2*2
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lda >texttab,x
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sta ptr2
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ldy #37 ;two at a time, starting from 37/38
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tloop1 anop
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lda #$dfdf ;normal '_'
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sta (ptr),y
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lda #$4c4c ;flashing 'L'
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sta (ptr2),y
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dey
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dey
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bpl tloop1 ;should end at -1
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ldx #1*2
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lda >texttab,x
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sta ptr
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lda #$a05a ;'Z ' (right-bar, space)
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sta (ptr)
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; lda #$a041 ;'A ' (apple symbol, space)
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; ldy #$0002
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; sta (ptr),y
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sep #$20
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LONGA OFF
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ldy #$0002
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ldx #$0000
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tloop2 anop
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lda >title_str,x
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beq tloop2_done
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sta (ptr),y
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inx
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iny
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bra tloop2
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tloop2_done anop
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lda #$a0
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sta (ptr),y
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iny
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lda #$20
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tloop3 anop
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cpy #39
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bge tloop3_done
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sta (ptr),y
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iny
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bra tloop3
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tloop3_done anop
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lda #$5f ;left-bar
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sta (ptr),y
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rep #$20
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LONGA ON
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box ANOP
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ldx #2*2
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edge anop
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lda >texttab,x
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sta <ptr
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sep #$20
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LONGA OFF
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lda #$5a
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sta (ptr)
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lda #$5f
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ldy #39
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sta (ptr),y
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rep #$20
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LONGA ON
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inx
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inx
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cpx #23*2
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blt edge
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bottom anop
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ldx #23*2
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lda >texttab,x
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sta ptr
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ldy #37
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bloop anop
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lda #$4c4c ;flashing 'L' - upper line
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sta (ptr),y
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dey
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dey
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bpl bloop ;should end at -1
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text ANOP
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ldx #22*2
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lda >texttab,x
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sta ptr
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ldy #$0002
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ldx #$0000
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lda >err_flag
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beq noerr
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ldx #finstr_str-instr_str
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noerr anop
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sep #$20
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LONGA OFF
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instr_loop anop
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lda >instr_str,x
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beq instr_done
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sta (ptr),y
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iny
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inx
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bra instr_loop
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instr_done anop
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rep #$20
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LONGA ON
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Done ANOP
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plb
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rts
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err_flag ds 2
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msg_tab anop
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MSB ON
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title_str dc C'HardPressed Control',H'00'
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instr_str dc C'Select: ',H'48a055a04aa04b'
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dc C' Cancel:Esc Save: ',H'4d00'
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finstr_str dc C' Exit: ',H'4d00'
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MSB OFF
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END
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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DrawScreen START
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;
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; Calling conventions:
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; JSR
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;
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; Draws the menu items (selected one in inverse), the appropriate selection,
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; and a check mark for defaults.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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using Globals
|
|
|
|
;
|
|
; Initialize counters
|
|
;
|
|
lda #4
|
|
sta cur_line
|
|
lda #0
|
|
sta cur_item
|
|
lda #$00e0
|
|
sta <ptr2+2
|
|
|
|
item_loop ANOP
|
|
lda cur_line ;set text ptr
|
|
asl A
|
|
tax
|
|
lda texttab,x
|
|
sta <ptr2
|
|
|
|
ldy #2 ;start drawing at column 2
|
|
lda cur_item
|
|
asl A
|
|
tax
|
|
lda items,x
|
|
bne _cont1
|
|
brl Done
|
|
_cont1 anop
|
|
sta <ptr
|
|
sta item_ptr
|
|
lda (<ptr) ;get pointer to title
|
|
sta <ptr
|
|
lda stat_tab,x
|
|
sta item_stat
|
|
bne not_default
|
|
|
|
lda #$44 ;check mark
|
|
bra def_comm
|
|
not_default anop
|
|
lda #$a0 ;space
|
|
def_comm anop
|
|
sep #$20
|
|
LONGA OFF
|
|
sta [<ptr2],y
|
|
rep #$20
|
|
LONGA ON
|
|
|
|
lda #$00ff
|
|
sta cmask
|
|
stz csub
|
|
lda hilite_opt
|
|
cmp cur_item
|
|
bne not_hilite
|
|
lda #$007f
|
|
sta cmask
|
|
lda #$0040
|
|
sta csub
|
|
not_hilite anop
|
|
|
|
iny
|
|
iny
|
|
stz <ptr+2 ;temp
|
|
sep #$20
|
|
LONGA OFF
|
|
title_loop anop
|
|
tyx
|
|
ldy <ptr+2
|
|
lda (<ptr),y
|
|
beq title_done
|
|
iny
|
|
sty <ptr+2
|
|
txy
|
|
and cmask ;make it inverse if this is current
|
|
cmp #$60 ;if it's > $60, then it's inverse
|
|
bge islorn ; lower case or normal text
|
|
cmp #$40 ;if it's < $40, it's inverse
|
|
blt islorn ; punctuation (e.g. ':')
|
|
sec
|
|
sbc csub
|
|
islorn anop
|
|
sta [<ptr2],y
|
|
iny
|
|
bra title_loop
|
|
title_done anop
|
|
rep #$20
|
|
LONGA ON
|
|
txy
|
|
iny ;space between title and status
|
|
|
|
lda item_stat
|
|
inc A
|
|
asl A
|
|
clc
|
|
adc item_ptr
|
|
sta <ptr
|
|
lda (<ptr)
|
|
sta <ptr
|
|
|
|
stz <ptr+2
|
|
sep #$20
|
|
LONGA OFF
|
|
stat_loop anop
|
|
tyx
|
|
ldy <ptr+2
|
|
lda (<ptr),y
|
|
beq stat_done
|
|
iny
|
|
sty <ptr+2
|
|
txy
|
|
sta [<ptr2],y
|
|
iny
|
|
bra stat_loop
|
|
stat_done anop
|
|
rep #$20
|
|
LONGA ON
|
|
txy
|
|
|
|
;
|
|
; increment counters and branch
|
|
;
|
|
inc cur_item
|
|
inc cur_line
|
|
inc cur_line
|
|
brl item_loop
|
|
|
|
Done ANOP
|
|
rts
|
|
|
|
; counters and temp vars
|
|
cur_line ds 2
|
|
cur_item ds 2
|
|
item_stat ds 2
|
|
item_ptr ds 2
|
|
cmask ds 2
|
|
csub ds 2
|
|
|
|
;
|
|
; Definitions for CDA items
|
|
;
|
|
items anop
|
|
dc A2'item1,item2,0'
|
|
|
|
item1 anop
|
|
dc A2'title1'
|
|
dc A2'i1compr,i1decomp,i1inact,0'
|
|
MSB ON
|
|
title1 dc C'Status:',H'00'
|
|
i1compr dc C'Compress and Expand ',H'00'
|
|
i1decomp dc C'Expand only ',H'00'
|
|
i1inact dc C'Inactive ',H'00'
|
|
MSB OFF
|
|
|
|
item2 anop
|
|
dc A2'title2'
|
|
dc A2'i2off,i2on,0'
|
|
MSB ON
|
|
title2 dc C'Verify:',H'00'
|
|
i2off dc C'Off',H'00'
|
|
i2on dc C'On ',H'00'
|
|
MSB OFF
|
|
END
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
MesgData DATA
|
|
;
|
|
; IPC stuff
|
|
;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
idstring anop
|
|
dc I1'idend-idbeg'
|
|
idbeg dc C'WestCode~HardPressed~Main~'
|
|
idend anop
|
|
|
|
data_in anop
|
|
ds 2 ;room for status word
|
|
data_out anop
|
|
ds 2 ;recipient count (set by system)
|
|
ds 4 ;room for version # or status info
|
|
ds 16 ;in case HP starts returning more
|
|
|
|
; calls that non-WestCode programs may make:
|
|
dMping equ $8000 ;return HP version number (4 bytes)
|
|
dMsetStatus equ $8001 ;set global status (on/off/decode)
|
|
dMgetStatus equ $8002 ;get global status
|
|
|
|
; low byte of status word (choose exactly one):
|
|
dVpolDecode equ $0001 ;Expand only
|
|
dVpolOn equ $0002 ;Compress and Expand
|
|
dVpolOff equ $0003 ;Inactive
|
|
|
|
; high byte of status word (these are flags; OR them together):
|
|
; (other flags may be added later; make sure you copy the existing values)
|
|
fGverify equ $4000 ;do verify on encoded close
|
|
fGoneTemp equ $2000 ;use a single temp directory
|
|
fGmouseTrix equ $1000 ;show progress by changing the mouse
|
|
END
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
SendMsg START
|
|
;
|
|
; Calling conventions:
|
|
; JSR with message in Acc and data_in in X/Y (hi/lo)
|
|
; Returns with acc/carry as set by _SendRequest
|
|
;
|
|
; Sends a message to HP.
|
|
;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
using MesgData
|
|
|
|
pha ;request code
|
|
pea $8001 ;send to one, by name
|
|
pea idstring|-16
|
|
pea idstring
|
|
phx ;push data_in on
|
|
phy
|
|
pea data_out|-16 ;data_out is always here
|
|
pea data_out
|
|
ldx #$1c01
|
|
jsl $e10000 ;_SendRequest
|
|
rts
|
|
END
|
|
|