mirror of
https://github.com/a2stuff/prodos-drivers.git
synced 2025-04-16 05:37:22 +00:00
Identify states
This commit is contained in:
Joshua Bell
parent
e13d9f0e60
commit
7042ad9901
191
b.s
191
b.s
@ -1,21 +1,19 @@
|
||||
;;; Disassembly of BYE.SYSTEM (Bird's Better Bye)
|
||||
|
||||
.setcpu "65C02"
|
||||
.include "apple2.inc"
|
||||
.include "prodos.inc"
|
||||
|
||||
L0060 := $0060
|
||||
|
||||
KBD := $C000
|
||||
RAMRDOFF := $C002
|
||||
RAMRDON := $C003
|
||||
RAMWRTOFF := $C004
|
||||
RAMWRTON := $C005
|
||||
ALTZPOFF := $C008
|
||||
ALTZPON := $C009
|
||||
KBDSTRB := $C010
|
||||
ROMIN := $C081
|
||||
ROMINNW := $C082
|
||||
ROMINWB1 := $C089
|
||||
LCBANK1 := $C08B
|
||||
LC300 := $C300
|
||||
|
||||
MON_SETTXT := $FB39
|
||||
@ -27,6 +25,33 @@ COUT := $FDED
|
||||
SETINV := $FE80
|
||||
SETNORM := $FE84
|
||||
|
||||
ZP_HPOS := $24
|
||||
|
||||
|
||||
ASCII_TAB := $9
|
||||
ASCII_DOWN := $A
|
||||
ASCII_UP := $B
|
||||
ASCII_RETURN := $D
|
||||
ASCII_ESCAPE := $1B
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.define HI(char) (char|$80)
|
||||
|
||||
.macro HIASCII arg
|
||||
.repeat .strlen(arg), i
|
||||
.byte .strat(arg, i) | $80
|
||||
.endrep
|
||||
.endmacro
|
||||
|
||||
.macro HIASCIIZ arg
|
||||
HIASCII arg
|
||||
.byte 0
|
||||
.endmacro
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
;; Loads at $2000 but executed at $1000.
|
||||
|
||||
.org $2000
|
||||
|
||||
@ -41,6 +66,12 @@ L2000: jmp install_and_quit
|
||||
|
||||
read_buffer := $2000 ; Also, start location for launched SYS files
|
||||
|
||||
|
||||
current_entry := $67
|
||||
num_entries := $68
|
||||
rows_per_screen := 21
|
||||
current_line := $73
|
||||
|
||||
cld
|
||||
lda ROMINNW
|
||||
stz $03F2
|
||||
@ -96,7 +127,7 @@ L1059: stx prefix ; truncate prefix to length x
|
||||
jmp keyboard_loop
|
||||
|
||||
L107F: inc $6B ; ???
|
||||
stz $68
|
||||
stz num_entries
|
||||
lda open_params_ref_num
|
||||
sta read_params_ref_num
|
||||
sta $61
|
||||
@ -158,7 +189,7 @@ L10F8: ror $201E
|
||||
beq L1108
|
||||
cmp #$FF
|
||||
bne L10B5
|
||||
L1108: ldx $68
|
||||
L1108: ldx num_entries
|
||||
cpx #$80
|
||||
bcs L1129
|
||||
sta $74,x
|
||||
@ -171,31 +202,37 @@ L1115: lda read_buffer,y
|
||||
iny
|
||||
and #$0F
|
||||
sta ($6C),y
|
||||
inc $68
|
||||
inc num_entries
|
||||
bne L10B5
|
||||
L1126: jmp L1032
|
||||
|
||||
L1129: MLI_CALL CLOSE, close_params
|
||||
bcs L1126
|
||||
|
||||
;; TEXT : HOME : VTAB 23
|
||||
jsr MON_SETTXT
|
||||
jsr MON_HOME
|
||||
lda #$17
|
||||
lda #23 ; line 23
|
||||
jsr MON_TABV
|
||||
ldy #$00
|
||||
lda #$14
|
||||
jsr L124A
|
||||
|
||||
;; Print help text
|
||||
ldy #0
|
||||
lda #20 ; HTAB 20
|
||||
jsr cout_string_hpos
|
||||
|
||||
jsr L12AD
|
||||
ldx #$00
|
||||
L1148: lda prefix+1,x
|
||||
ldx #0
|
||||
: lda prefix+1,x
|
||||
beq L1153
|
||||
jsr L12AF
|
||||
inx
|
||||
bne L1148
|
||||
L1153: stz $67
|
||||
stz $73
|
||||
lda $68
|
||||
bne :-
|
||||
|
||||
L1153: stz current_entry
|
||||
stz current_line
|
||||
lda num_entries
|
||||
beq keyboard_loop
|
||||
cmp #$15
|
||||
cmp #rows_per_screen
|
||||
bcc L1161
|
||||
lda #$14
|
||||
L1161: sta $6A
|
||||
@ -205,57 +242,68 @@ L1161: sta $6A
|
||||
lda #$16
|
||||
sta $21
|
||||
sta $23
|
||||
L116F: jsr L1277
|
||||
inc $67
|
||||
L116F: jsr draw_current_line
|
||||
inc current_entry
|
||||
dec $6A
|
||||
bne L116F
|
||||
stz $67
|
||||
beq L11AA
|
||||
stz current_entry
|
||||
beq draw_current_line_inv
|
||||
|
||||
on_up: jsr L1277
|
||||
ldx $67
|
||||
beq L11AA
|
||||
dec $67
|
||||
.proc on_up
|
||||
jsr draw_current_line ; show current line
|
||||
ldx current_entry
|
||||
beq draw_current_line_inv
|
||||
dec current_entry
|
||||
lda $25
|
||||
cmp #$02
|
||||
bne L11AA
|
||||
dec $73
|
||||
lda #$16
|
||||
bne L11A7
|
||||
bne draw_current_line_inv
|
||||
dec current_line
|
||||
lda #$16 ; code output ???
|
||||
bne draw_current_line_with_char
|
||||
.endproc
|
||||
|
||||
on_down:
|
||||
jsr L1277
|
||||
ldx $67
|
||||
.proc on_down
|
||||
jsr draw_current_line
|
||||
ldx current_entry
|
||||
inx
|
||||
cpx $68
|
||||
bcs L11AA
|
||||
stx $67
|
||||
cpx num_entries
|
||||
bcs draw_current_line_inv
|
||||
stx current_entry
|
||||
lda $25
|
||||
cmp #$15
|
||||
bne L11AA
|
||||
inc $73
|
||||
lda #$17
|
||||
cmp #rows_per_screen
|
||||
bne draw_current_line_inv
|
||||
inc current_line
|
||||
lda #$17 ; code output ???
|
||||
;; fall through
|
||||
.endproc
|
||||
|
||||
draw_current_line_with_char:
|
||||
jsr COUT
|
||||
|
||||
draw_current_line_inv:
|
||||
jsr SETINV
|
||||
jsr draw_current_line
|
||||
;; fall through
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
L11A7: jsr COUT
|
||||
L11AA: jsr SETINV
|
||||
jsr L1277
|
||||
|
||||
keyboard_loop:
|
||||
lda KBD
|
||||
bpl keyboard_loop
|
||||
sta KBDSTRB
|
||||
jsr SETNORM
|
||||
ldx $68
|
||||
ldx num_entries
|
||||
beq L11CB
|
||||
cmp #$8D ; Return
|
||||
cmp #HI(ASCII_RETURN)
|
||||
beq on_return
|
||||
cmp #$8A ; Down Arrow
|
||||
cmp #HI(ASCII_DOWN)
|
||||
beq on_down
|
||||
cmp #$8B ; Up Arrow
|
||||
cmp #HI(ASCII_UP)
|
||||
beq on_up
|
||||
L11CB: cmp #$89 ; Tab
|
||||
L11CB: cmp #HI(ASCII_TAB)
|
||||
beq next_drive
|
||||
cmp #$9B ; Esc
|
||||
cmp #HI(ASCII_ESCAPE)
|
||||
bne keyboard_loop
|
||||
|
||||
jsr L11DA
|
||||
@ -280,7 +328,7 @@ L11F1: jmp L1059
|
||||
on_return:
|
||||
MLI_CALL SET_PREFIX, set_prefix_params
|
||||
bcs next_drive
|
||||
ldx $67
|
||||
ldx current_entry
|
||||
jsr L1258
|
||||
|
||||
ldx prefix
|
||||
@ -292,10 +340,12 @@ on_return:
|
||||
bcc :-
|
||||
stx prefix
|
||||
|
||||
ldy $67
|
||||
ldy current_entry
|
||||
lda $74,y
|
||||
bpl L11F0 ; is directory???
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.proc launch_sys_file
|
||||
jsr MON_SETTXT
|
||||
jsr MON_HOME
|
||||
@ -317,7 +367,10 @@ on_return:
|
||||
jmp read_buffer ; Invoke the loaded code
|
||||
.endproc
|
||||
|
||||
L124A: sta $24
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
cout_string_hpos:
|
||||
sta ZP_HPOS
|
||||
|
||||
cout_string:
|
||||
lda help_string,y
|
||||
@ -347,12 +400,13 @@ L1258: stz $6D
|
||||
sta $69
|
||||
rts
|
||||
|
||||
L1277: lda #$02
|
||||
draw_current_line:
|
||||
lda #$02
|
||||
sta $057B
|
||||
ldx $67
|
||||
ldx current_entry
|
||||
txa
|
||||
sec
|
||||
sbc $73
|
||||
sbc current_line
|
||||
inc a
|
||||
inc a
|
||||
jsr MON_TABV
|
||||
@ -378,21 +432,18 @@ L12AD: lda #$99
|
||||
L12AF: ora #$80
|
||||
L12B1: jmp COUT
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.proc do_read
|
||||
MLI_CALL READ, read_params
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.macro HIASCII arg
|
||||
.repeat .strlen(arg), i
|
||||
.byte .strat(arg, i) | $80
|
||||
.endrep
|
||||
.endmacro
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
string_start := *
|
||||
.proc help_string
|
||||
HIASCII "RETURN: Select | TAB: Chg Vol | ESC: Back"
|
||||
.byte 0 ; null terminated
|
||||
HIASCIIZ "RETURN: Select | TAB: Chg Vol | ESC: Back"
|
||||
.endproc
|
||||
|
||||
;; Mousetext sequence: Enable, folder left, folder right, disable
|
||||
@ -401,6 +452,8 @@ L12B1: jmp COUT
|
||||
.byte 0 ; null terminated
|
||||
.endproc
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.proc open_params
|
||||
params: .byte 3
|
||||
path: .addr prefix
|
||||
@ -436,6 +489,8 @@ trans: .word 0
|
||||
read_params_ref_num := read_params::ref_num
|
||||
read_params_request := read_params::request
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.res 192, 0
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
@ -450,16 +505,22 @@ trans: .word 0
|
||||
.assert .sizeof(bbb) = $3FF, error, "Expected size is $3FF"
|
||||
.org $2402
|
||||
|
||||
install_and_quit:
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.proc install_and_quit
|
||||
jsr install
|
||||
MLI_CALL QUIT, quit_params
|
||||
.proc quit_params
|
||||
MLI_CALL QUIT, params
|
||||
|
||||
.proc params
|
||||
params: .byte 4
|
||||
type: .byte 0
|
||||
res1: .word 0
|
||||
res2: .byte 0
|
||||
res3: .addr 0
|
||||
.endproc
|
||||
.endproc
|
||||
|
||||
;;; ------------------------------------------------------------
|
||||
|
||||
.proc install
|
||||
src := install_src
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user