repos/blastem: menu.s68 annotate

annotate menu.s68 @ 909:e60eb88d7b09

Added mouse support to menu ROM

author	Michael Pavone <pavone@retrodev.com>
date	Sat, 05 Dec 2015 00:17:15 -0800
parents	7022ba865cfd
children	c030e4af32b7

rev	line source
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	1 dc.l $0, start
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	2 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	3 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	4 ;$10
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	5 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	6 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	7 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	8 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	9 ;$20
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	10 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	11 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	12 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	13 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	14 ;$30
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	15 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	16 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	17 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	18 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	19 ;$40
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	20 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	21 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	22 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	23 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	24 ;$50
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	25 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	26 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	27 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	28 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	29 ;$60
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	30 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	31 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	32 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	33 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	34 ;$70
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	35 dc.l int_4
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	36 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	37 dc.l int_6
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	38 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	39 ;$80
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	40 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	41 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	42 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	43 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	44 ;$90
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	45 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	46 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	47 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	48 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	49 ;$A0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	50 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	51 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	52 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	53 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	54 ;$B0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	55 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	56 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	57 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	58 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	59 ;$C0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	60 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	61 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	62 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	63 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	64 ;$D0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	65 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	66 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	67 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	68 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	69 ;$E0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	70 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	71 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	72 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	73 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	74 ;$F0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	75 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	76 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	77 dc.l empty_handler
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	78 dc.l empty_handler
790 e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	79 dc.b "SEGA GENESIS "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	80 dc.b "(c) 2015.JULY "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	81 dc.b "Menu "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	82 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	83 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	84 dc.b "Menu "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	85 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	86 dc.b " "
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	87 dc.b "MP BlstMenu-00", 0, 0
790 e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	88 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	89 dc.l $0, rom_end-1, $FF0000, $FFFFFF
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	90 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	91 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	92 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	93 dc.b " "
e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	94 dc.b "JUE "
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	95
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	96 ;register addresses
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	97 VDP_DATA equ $C00000
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	98 VDP_CTRL equ $C00004
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	99 VDP_HV equ $C00008
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	100 Z80_RAM equ $A00000
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	101 IO_AREA equ $A10000
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	102 PAD1_DATA equ (IO_AREA + 3)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	103 PAD2_DATA equ (IO_AREA + 5)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	104 EXT_DATA equ (IO_AREA + 7)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	105 PAD1_CTRL equ (IO_AREA + 9)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	106 PAD2_CTRL equ (IO_AREA + 11)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	107 EXT_CTRL equ (IO_AREA + 13)
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	108
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	109 MODE_1 equ 0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	110 MODE_2 equ 1
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	111 SCROLL_A equ 2
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	112 WINDOW equ 3
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	113 SCROLL_B equ 4
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	114 SAT equ 5
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	115 BG_COLOR equ 7
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	116 HINT equ $A
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	117 MODE_3 equ $B
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	118 MODE_4 equ $C
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	119 HSCROLL equ $D
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	120 AUTOINC equ $F
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	121 SCROLL EQU $10
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	122 WINDOW_H equ $11
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	123 WINDOW_V equ $12
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	124 DMALEN_L equ $13
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	125 DMALEN_H equ $14
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	126 DMASRC_L equ $15
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	127 DMASRC_M equ $16
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	128 DMASRC_H equ $17
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	129
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	130 VDP_VRAM_WRITE equ $40000000
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	131 VDP_CRAM_WRITE equ $C0000000
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	132 VDP_VSRAM_WRITE equ $40000010
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	133 VDP_DMA_FLAG equ $80
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	134
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	135 vdpregset macro
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	136 move.w #(((\1) << 8) \| $8000 \| (\2)), (a1)
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	137 endm
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	138
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	139 vdpreg macro
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	140 dc.w (((\1) << 8) \| $8000 \| (\2))
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	141 endm
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	142
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	143 ;Writes a normal VDP command to the control port
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	144 ;\1 - VDP address
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	145 ;\2 - Access type
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	146 vdpaccess macro
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	147 move.l #((\2) \| (\1) << 16 & $3FFF0000 \| (\1) >> 14 & 3), (a1)
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	148 endm
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	149
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	150 ;Writes a DMA command to the control port
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	151 ;\1 - Destination address
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	152 ;\2 - Destination type
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	153 startdma macro
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	154 move.l #(\2 \| VDP_DMA_FLAG \| (\1 << 16) & $3FFF0000 \| (\1 >> 14) & 3), (a1)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	155 endm
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	156
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	157 DMA_SRC_68K equ 0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	158 DMA_SRC_VRAM equ $C0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	159 DMA_SRC_FILL equ $80
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	160
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	161 dmasrc macro
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	162 move.l #($95009600 + (\1) << 15 & $FF0000 + (\1) >> 9 & $FF), (a1)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	163 move.w #($9700 + (\1) >> 17 & $7F \| (\2)), (a1)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	164 endm
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	165
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	166 dir_buffer equ $100000
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	167 menu_port equ $180000
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	168
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	169 MAX_DISPLAY equ 24
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	170
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	171 rsset $FFFF8000
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	172 x_pos rs.w 1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	173 base_cmd rs.l 1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	174 sprite_list rs.l 160
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	175 page_index rs.l MAX_DISPLAY+1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	176 page_stack rs.l 1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	177 page_pointers rs.l 1024
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	178 mouse_sprite rs.l 1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	179 mouse_x rs.w 1
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	180 num_sprites rs.b 1
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	181 last_pad1 rs.b 1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	182 last_pad2 rs.b 1
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	183 selected rs.b 1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	184 more_pages rs.b 1
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	185 mouse_buf rs.b 3
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	186 mouse_shown rs.b 1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	187 last_mbuttons rs.b 1
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	188
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	189
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	190 int_6:
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	191 dmasrc sprite_list, DMA_SRC_68K
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	192 ;set DMA length
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	193 move.l #$94009300, d0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	194 moveq #0, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	195 move.b num_sprites.w, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	196 add.w d1, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	197 add.w d1, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	198 move.b d1, d0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	199 swap d0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	200 lsr.w #8, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	201 move.b d1, d0
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	202 move.l d0, (a1)
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	203 startdma $C000, VDP_VRAM_WRITE
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	204
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	205 ;read gamepad/mouse in port 1
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	206 lea PAD1_DATA, a2
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	207
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	208 bsr io_read
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	209
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	210 cmp.b #3, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	211 beq .mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	212
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	213 move.b last_pad1.w, d1
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	214 eor.b d0, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	215 and.b d0, d1
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	216 move.b d0, last_pad1.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	217
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	218 bsr handle_pad_buttons
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	219
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	220 bra pad2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	221 .mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	222 bsr handle_mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	223
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	224 pad2:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	225 ;read gamepad/mouse in port 2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	226 lea PAD2_DATA, a2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	227
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	228 bsr io_read
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	229
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	230 cmp.b #3, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	231 beq .mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	232
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	233 move.b last_pad2.w, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	234 eor.b d0, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	235 and.b d0, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	236 move.b d0, last_pad2.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	237
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	238 bsr handle_pad_buttons
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	239 rte
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	240 .mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	241 bsr handle_mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	242 rte
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	243
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	244
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	245 ;d0 = SACBRLUD
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	246 ;d1 = newly pressed buttons
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	247 handle_pad_buttons:
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	248 moveq #16, d2
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	249 btst #1, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	250 bne down
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	251 btst #0, d1
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	252 bne up
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	253 btst #3, d1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	254 bne right
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	255 btst #2, d1
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	256 bne left
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	257 btst #7, d1
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	258 bne select_entry
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	259 btst #5, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	260 bne select_entry
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	261 handle_done:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	262 rts
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	263
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	264 down:
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	265 ;check if we are already at the bottom of the page
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	266 moveq #1, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	267 add.b (selected).w, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	268 move.w d0, d1
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	269 add.w d0, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	270 add.w d0, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	271 lea page_index.w, a2
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	272 tst.l (0, a2, d0.w)
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	273 beq handle_done
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	274 move.b d1, (selected).w
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	275
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	276 add.w d2, (sprite_list).w
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	277 add.w d2, (sprite_list+8).w
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	278 rts
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	279 up:
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	280 ;check if we are already at the top of the page
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	281 move.b (selected).w, d0
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	282 beq handle_done
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	283 subq #1, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	284 move.b d0, (selected).w
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	285
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	286 sub.w d2, (sprite_list).w
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	287 sub.w d2, (sprite_list+8).w
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	288 rts
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	289
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	290 right:
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	291 ;check that we have another page to go to
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	292 tst.b more_pages.w
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	293 beq handle_done
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	294 ;switch to the next page
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	295 move.l page_stack.w, a6
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	296 move.l (-4, a6), a6
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	297
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	298 addq #6, a7
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	299 bra render_page
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	300
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	301 left:
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	302 move.l page_stack.w, a5
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	303 ;check if we're already on the first page
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	304 cmp.l #(page_pointers+8), a5
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	305 beq handle_done
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	306 ;switch to previous page
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	307 lea (-12, a5), a5
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	308 move.l (a5)+, a6
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	309 move.l a5, page_stack.w
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	310
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	311 addq #6, a7
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	312 bra render_page
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	313
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	314 select_entry:
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	315 moveq #0, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	316 move.b (selected).w, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	317 add.w d0, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	318 add.w d0, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	319 lea page_index.w, a2
869 4298db923cf8 Fix detection of directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 868 diff changeset	320 move.l (0, a2, d0.w), a2
4298db923cf8 Fix detection of directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 868 diff changeset	321 tst.b (-1, a2)
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	322 bne enter_dir
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	323 ;regular file
872 7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 871 diff changeset	324 lea menu_port+8, a3
7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 871 diff changeset	325 move.l a2, (a3)
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	326 rts
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	327 enter_dir:
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	328 lea menu_port+4, a3
869 4298db923cf8 Fix detection of directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 868 diff changeset	329 move.l a2, (a3)
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	330 .wait_complete
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	331 tst.w (a3)
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	332 bne .wait_complete
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	333 addq #6, a7
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	334 bra menu_start
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	335
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	336 handle_mouse:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	337 move.b last_mbuttons.w, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	338 eor.b d3, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	339 and.b d3, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	340 move.b d3, last_mbuttons.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	341
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	342 move.b d0, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	343 or.b d1, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	344 beq .no_mouse_move
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	345
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	346
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	347 tst.b mouse_shown.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	348 bne .skip_show_check
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	349
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	350 moveq #0, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	351 move.b num_sprites.w, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	352 move.w d2, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	353 lsl.w #3, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	354 lea sprite_list.w, a2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	355 move.b d2, (-5, a2, d4.w)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	356 lea (0, a2, d4.w), a2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	357 move.l a2, mouse_sprite.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	358 move.l #$01000500, (a2)+
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	359 move.w #$8083, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	360 move.w #$100, mouse_x.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	361 addq #1, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	362 move.b d2, num_sprites.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	363
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	364 move.b #1, mouse_shown.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	365
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	366 .skip_show_check
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	367 move.l mouse_sprite.w, a2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	368 add.w d1, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	369 add.w d0, mouse_x.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	370 move.w mouse_x.w, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	371 asr.w #1, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	372 move.w d0, (6, a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	373 move.w (a2), d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	374 cmp.w #272, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	375 blo .done
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	376 cmp.w #655, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	377 bhi .done
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	378 and.w #$FFF0, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	379 subq #8, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	380 move.w d1, (sprite_list).w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	381 move.w d1, (sprite_list+8).w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	382
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	383 sub.w #264, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	384 lsr.w #4, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	385 move.b d1, selected.w
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	386 .no_mouse_move
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	387 btst #0, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	388 bne select_entry
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	389 .done
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	390 rts
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	391 int_4:
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	392 empty_handler:
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	393 rte
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	394
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	395 id_lookup:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	396 dc.b $0, $1, $4, $5
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	397 dc.b $2, $3, $6, $7
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	398 dc.b $8, $9, $C, $D
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	399 dc.b $A, $B, $E, $F
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	400
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	401 io_read:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	402 ;read TH=1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	403 move.b (a2), d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	404 ;read TH=0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	405 move.b #0, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	406 nop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	407 nop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	408 move.b (a2), d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	409 ;reset TH to 1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	410 move.b #$40, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	411
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	412 moveq #0, d2 ;4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	413
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	414 ;calculate Mega Drive peripheral ID
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	415 move.b d1, d2 ;4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	416 lsr.b #1, d2 ;8, 12
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	417 or.b d1, d2 ;4, 16
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	418 and.b #5, d2 ;8, 24
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	419
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	420 move.b d0, d3 ;4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	421 add.b d3, d3 ;4, 8
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	422 or.b d0, d3 ;4, 12
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	423 and.b #$A, d3 ;8, 20
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	424
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	425 or.b d3, d2 ;4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	426 move.b (id_lookup, pc, d2.w), d2 ;14
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	427
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	428
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	429 cmp.b #$3, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	430 beq .mouse
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	431
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	432 cmp.b #$D, d2
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	433 bne .not_pad
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	434
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	435 and.b #$3F, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	436 and.b #$30, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	437 add.b d1, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	438 add.b d1, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	439 or.b d1, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	440 not.b d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	441 rts
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	442 .not_pad:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	443 moveq #0, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	444 rts
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	445
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	446 .mouse:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	447
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	448 move.b #$60, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	449 move.b #$60, (PAD1_CTRL-PAD1_DATA, a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	450 move.b #$60, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	451
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	452 moveq #$f, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	453 wait_hi_init:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	454 btst #4, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	455 beq wait_hi_init
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	456 nop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	457 nop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	458 move.b #$20, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	459 nop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	460 nop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	461 moveq #$f, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	462 move.b #0, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	463 .wait_lo
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	464 btst #4, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	465 bne .wait_lo
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	466 moveq #$f, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	467 move.b #$20, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	468 .wait_hi
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	469 btst #4, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	470 beq .wait_hi
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	471
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	472 lea mouse_buf.w, a3
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	473 move.l a3, a4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	474 moveq #2, d3
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	475 moveq #0, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	476 loop:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	477 moveq #$f, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	478 move.b #0, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	479 .wait_lo
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	480 btst #4, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	481 bne .wait_lo
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	482 move.b (a2), d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	483 lsl.b #4, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	484 moveq #$f, d4
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	485 move.b #$20, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	486 .wait_hi
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	487 btst #4, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	488 beq .wait_hi
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	489 move.b (a2), d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	490 and.b #$f, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	491 or.b d1, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	492 move.b d0, (a3)+
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	493
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	494 dbra d3, loop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	495
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	496 ;end request
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	497 move.b #$60, (a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	498
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	499
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	500 ;massage data
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	501 moveq #0, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	502 move.b d0, d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	503 move.b (a4)+, d3
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	504 move.b (a4), d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	505
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	506 btst #4, d3
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	507 beq xpos
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	508 neg.w d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	509 xpos
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	510 btst #5, d3
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	511 beq ypos
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	512 neg.w d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	513 ypos
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	514 ;set port config back to normal controller mode
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	515 move.b #$40, (PAD1_CTRL-PAD1_DATA, a2)
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	516 rts
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	517
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	518
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	519
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	520 initial_regs:
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	521 vdpreg MODE_2, $4 ;Mode 5, everything turned off
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	522 vdpreg MODE_1, $4
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	523 vdpreg SCROLL_A, $20 ;Scroll a table $8000
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	524 vdpreg SCROLL_B, $05 ;Scroll b table $A000
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	525 vdpreg SAT, $60 ;SAT table $C000
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	526 vdpreg BG_COLOR, 0
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	527 vdpreg HINT, $FF
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	528 vdpreg MODE_3, 0 ;full screen scroll
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	529 vdpreg MODE_4, $87 ;40 cell mode, double-res interlace
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	530 vdpreg HSCROLL, 0
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	531 vdpreg AUTOINC, 2
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	532 vdpreg SCROLL, 1 ;64x32 scroll size
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	533 end_initial_regs
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	534
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	535 start:
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	536 lea $FF0000, a0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	537 moveq #0, d0
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	538 move.w #($10000/8 - 1), d1
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	539 .clearloop:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	540 move.l d0, (a0)+
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	541 move.l d0, (a0)+
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	542 dbra d1, .clearloop
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	543
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	544 lea $C00000, a0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	545 lea $C00004, a1
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	546
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	547 moveq #(end_initial_regs-initial_regs-1), d0
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	548 lea initial_regs.w, a2
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	549 .regloop
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	550 move.w (a2)+, (a1)
109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	551 dbra d0, .regloop
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	552
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	553 vdpaccess $0, VDP_CRAM_WRITE
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	554 move.w #$020, (a0)
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	555 move.w #$EEE, (a0)
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	556 move.w #$222, (a0)
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	557
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	558 ;init scroll table
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	559 vdpaccess $0, VDP_VRAM_WRITE
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	560 move.w #0, (a0)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	561 move.w #4, (a0)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	562
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	563 ;load tiles
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	564 vdpaccess $800, VDP_VRAM_WRITE
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	565 lea font(pc), a2
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	566 move.w #((cursorend-font)/4 - 1), d0
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	567 tloop:
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	568 move.l (a2)+, (a0)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	569 dbra d0, tloop
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	570
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	571
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	572 ;setup SAT
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	573 ;;vdpaccess $C000, VDP_VRAM_WRITE
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	574
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	575 lea sprite_list.w, a2
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	576 ;left arrow
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	577 move.l #$01080501, (a2)+
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	578 move.l #$807F0086, (a2)+
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	579
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	580 ;right arrow
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	581 move.l #$01080500, (a2)+
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	582 move.l #$887F01AA, (a2)+
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	583 move.b #2, num_sprites.w
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	584
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	585 menu_start:
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	586 lea page_pointers.w, a5
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	587 lea dir_buffer, a6
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	588 move.l a6, (a5)+
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	589 move.l a5, page_stack.w
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	590 lea menu_port, a2
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	591 move.l a6, (a2)
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	592
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	593 wait_complete:
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	594 tst.w (a2)
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	595 bne wait_complete
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	596
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	597 render_page:
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	598 ;clear name tables
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	599 vdpaccess $8000, VDP_VRAM_WRITE
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	600 moveq #32, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	601 swap d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	602 move.b #32, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	603 move.w #(64*64-1), d1
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	604 ploop:
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	605 move.l d0, (a0)
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	606 dbra d1, ploop
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	607
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	608 move.l #$40860002, d3
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	609 move.l d3, (a1)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	610 move.l d3, base_cmd.w
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	611
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	612 move.b #0, more_pages.w
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	613 lea page_index.w, a3
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	614 moveq #MAX_DISPLAY-1, d7
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	615 file_loop:
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	616 tst.b (a6)+
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	617 beq done_files
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	618 addq #1, a6 ;TODO: Do something with directory flag
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	619
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	620 ;skip over entries starting with a dot except ..
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	621 cmp.b #$2E, (a6)
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	622 bne normal
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	623 cmp.b #$2E, (1, a6)
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	624 beq normal
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	625 addq #1, a6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	626 .skip_loop:
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	627 tst.b (a6)+
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	628 bne .skip_loop
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	629 addq #1, d7
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	630 move.l a6, d6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	631 bra skip
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	632 normal:
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	633 ;save entry pointer to page index
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	634 move.l a6, (a3)+
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	635 ;print name on screen
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	636 moveq #0, d0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	637 bsr print_string
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	638 move.l a6, d6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	639
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	640 lea Newline(pc), a6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	641 bsr print_string
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	642
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	643 skip:
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	644 ;word align pointer
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	645 addq #1, d6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	646 and.w #$FFFE, d6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	647 move.l d6, a6
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	648
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	649 dbra d7, file_loop
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	650 tst.b (a6)
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	651 beq done_files
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	652 move.b #1, more_pages.w
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	653 done_files:
871 f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	654 move.l page_stack.w, a5
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	655 move.l a6, (a5)+
f364f4f22f8f Allow navigation between pages for long directories in menu ROM Michael Pavone <pavone@retrodev.com> parents: 869 diff changeset	656 move.l a5, page_stack.w
868 1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	657
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	658 ;null terminate page_index
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	659 moveq #0, d0
1bab7e01ae98 Allow directory navigation in menu. Sort directory entries Michael Pavone <pavone@retrodev.com> parents: 866 diff changeset	660 move.l d0, (a3)
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	661
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	662 ;setup gamepads
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	663 move.b #$40, PAD1_CTRL
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	664 move.b #$40, PAD2_CTRL
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	665
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	666 move.w #$8174, (a1) ;enable display, vertical interrupts, DMA
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	667
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	668
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	669 wait_forever
814 109ac52ffecd Menu cleanup with macros Michael Pavone <pavone@retrodev.com> parents: 791 diff changeset	670 stop #2500
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	671 bra wait_forever
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	672
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	673 Newline:
69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	674 dc.b $A, 0
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	675
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	676 align 1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	677
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	678 ;Prints a null terminated string
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	679 ;a6 - pointer to string
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	680 ;a0 - VDP data port
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	681 ;d0 - base tile attribute
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	682 ;
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	683 ;Clobbers: d1.w, d2.w, d3.l
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	684 print_string:
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	685 lea widths(pc), a5
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	686 move.w x_pos.w, d2
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	687 move.l base_cmd.w, d3
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	688 .loop
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	689 moveq #0, d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	690 move.b (a6)+, d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	691 beq .end
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	692 cmp.b #$A, d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	693 beq .newline
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	694 tst.b (-32, a5, d1.w)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	695 beq .narrow
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	696 add.w d0, d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	697 move.w d1, (a0)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	698 addq #2, d2
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	699 bra .loop
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	700 .narrow
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	701 add.w d0, d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	702 move.w d1, (a0)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	703 addq #1, d2
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	704 move.l d2, d1
791 60686f8d5e48 Add a couple of comments to menu.s68 Michael Pavone <pavone@retrodev.com> parents: 790 diff changeset	705 ;switch to other plane
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	706 and.w #$FFFE, d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	707 swap d1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	708 eor.l #$20000000, d3
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	709 add.l d3, d1
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	710 move.l d1, (a1)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	711 bra .loop
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	712 .newline
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	713 moveq #0, d2
791 60686f8d5e48 Add a couple of comments to menu.s68 Michael Pavone <pavone@retrodev.com> parents: 790 diff changeset	714 ;switch back to plane A
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	715 and.l #$DFFFFFFF, d3
791 60686f8d5e48 Add a couple of comments to menu.s68 Michael Pavone <pavone@retrodev.com> parents: 790 diff changeset	716 ;skip to next row
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	717 add.l #$00800000, d3
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	718 move.l d3, (a1)
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	719 bra .loop
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	720 .end
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	721 move.w d2, x_pos.w
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	722 move.l d3, base_cmd.w
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	723 rts
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	724
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	725 align 1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	726 font:
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	727 incbin font_interlace_variable.tiles
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	728 fontend
827 35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	729 arrow:
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	730 incbin arrow.tiles
35f5658d141f Add selection arrow to menu Michael Pavone <pavone@retrodev.com> parents: 814 diff changeset	731 arrowend:
909 e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	732 cursor:
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	733 incbin cursor.tiles
e60eb88d7b09 Added mouse support to menu ROM Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	734 cursorend:
789 41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	735
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	736 widths:
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	737 dc.b 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	738 dc.b 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	739 dc.b 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	740 dc.b 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
41e83b38bdc8 Initial work on silly Genesis based menu Michael Pavone <pavone@retrodev.com> parents: diff changeset	741 dc.b 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1
866 69a6ec208111 Menu ROM now pulls real file names from the OS rather than using a fake list Michael Pavone <pavone@retrodev.com> parents: 827 diff changeset	742
790 e8b14d5a5b5a Add something resembling a proper header Michael Pavone <pavone@retrodev.com> parents: 789 diff changeset	743 rom_end:

Mercurial > repos > blastem

annotate menu.s68 @ 909:e60eb88d7b09