xenia/fox32rom
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Show a "welcome to fox32" message box in the middle of the screen

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This commit is contained in:
Ry 2023-01-18 17:53:00 -08:00
parent a29ce25843
commit b96e6979ca
2 changed files with 36 additions and 52 deletions
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3
boot.asm
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@ -28,7 +28,4 @@ boot_cleanup:
mov r0, BACKGROUND_COLOR
call fill_background
; disable the menu bar
call disable_menu_bar
ret

85
main.asm
View File

@ -60,9 +60,6 @@ entry_seed_done:
; enable interrupts
ise
; clear the interrupt vector for interrupt 0xFE - audio buffer switch
mov [0x000003F8], 0x00000000
; disable all overlays
mov r31, 0x1F
mov r0, 0x80000300
@ -76,12 +73,6 @@ disable_all_overlays_loop:
mov r0, BACKGROUND_COLOR
call fill_background
call enable_menu_bar
call clear_menu_bar
mov r0, menu_items_root
mov r1, 0xFFFFFFFF
call draw_menu_bar_root_items
; draw the bottom bar
mov r0, bottom_bar_str_0
mov r1, 8
@ -127,29 +118,42 @@ draw_bottom_bar_loop:
mov r12, FOX32ROM_VERSION_PATCH
call draw_format_str_to_background
; draw the box in the middle of the screen
mov r0, 242
mov r1, 203
mov r2, 156
mov r3, 60
mov r4, 0xFFFFFFFF
call draw_filled_rectangle_to_background
mov r0, 243
mov r1, 204
mov r2, 154
mov r3, 58
mov r4, 0xFF000000
call draw_filled_rectangle_to_background
mov r0, 244
mov r1, 205
mov r2, 152
mov r3, 56
mov r4, 0xFFFFFFFF
call draw_filled_rectangle_to_background
; draw the text inside the box
mov r0, startup_str_0
mov r1, 256
mov r2, 216
mov r3, 0xFF000000
mov r4, 0x00000000
call draw_str_to_background
mov r0, startup_str_1
mov r1, 256
mov r2, 232
call draw_str_to_background
event_loop:
call get_next_event
; was the mouse clicked?
cmp r0, EVENT_TYPE_MOUSE_CLICK
;ifz call mouse_click_event
; was the mouse released?
cmp r0, EVENT_TYPE_MOUSE_RELEASE
;ifz call mouse_release_event
; did the user click the menu bar?
cmp r0, EVENT_TYPE_MENU_BAR_CLICK
ifz mov r0, menu_items_root
ifz call menu_bar_click_event
; is the user in a menu?
cmp r0, EVENT_TYPE_MENU_UPDATE
ifz call menu_update_event
; did the user click a menu item?
cmp r0, EVENT_TYPE_MENU_CLICK
ifz call menu_click_event
; no event handling here
; check if a disk is inserted as disk 0
; if port 0x8000100n returns a non-zero value, then a disk is inserted as disk n
@ -159,16 +163,6 @@ event_loop:
jmp event_loop
menu_click_event:
; r3 contains the clicked menu item
; shutdown
cmp r3, 0
ifz icl
ifz halt
ret
get_rom_version:
mov r0, FOX32ROM_VERSION_MAJOR
mov r1, FOX32ROM_VERSION_MINOR
@ -348,6 +342,9 @@ const MENU_POSITION_Y: 0x02156186 ; 2 bytes
const MENU_FRAMEBUFFER_PTR: 0x0215618A ; 4 bytes
const MENU_FRAMEBUFFER: 0x0215618E ; max 640x480x4 = end address at 0x0228218E
startup_str_0: data.str "Welcome to fox32" data.8 0
startup_str_1: data.str "Insert boot disk" data.8 0
bottom_bar_str_0: data.str "FOX" data.8 0
bottom_bar_str_1: data.str "32" data.8 0
bottom_bar_str_2: data.str " ROM version %u.%u.%u " data.8 0
@ -388,15 +385,5 @@ bottom_bar_patterns:
data.32 0xFFFFFFFF
data.32 0xFF674764
menu_items_root:
data.8 1 ; number of menus
data.32 menu_items_system_list data.32 menu_items_system_name ; pointer to menu list, pointer to menu name
menu_items_system_name:
data.8 6 data.str "System" data.8 0x00 ; text length, text, null-terminator
menu_items_system_list:
data.8 1 ; number of items
data.8 11 ; menu width (usually longest item + 2)
data.8 9 data.str "Shut Down" data.8 0x00 ; text length, text, null-terminator
; pad out to 512 KiB
org.pad 0xF0080000