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dos33fsprogs/demos/second/part00_boot/fake_bios.s
Vince Weaver 35b0f4a87c second: move some things around
2023-10-06 01:01:02 -04:00

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; Fake BIOS screen
; for another project
.include "../zp.inc"
.include "../hardware.inc"
bios_test:
;===================
; set graphics mode
;===================
jsr HOME
bit HIRES
bit FULLGR
bit SET_GR
bit PAGE1
jsr build_tables
;=======================
; Hardware Detect Model
;=======================
; Yes Michaelangel007 I will eventually update linux_logo 6502
jsr detect_appleii_model
lda APPLEII_MODEL
cmp 'g'
bne not_iigs
is_a_iigs:
; set background color to black instead of blue
lda NEWVIDEO
and #%00011111 ; bit 7 = 0 -> IIgs Apple II-compat video modes
; bit 6 = 0 -> IIgs 128K memory map same as IIe
; bit 5 = 0 -> IIgs DHGR is color, not mono
; bits 0-4 unchanged
sta NEWVIDEO
lda #$F0
sta TBCOLOR ; white text on black background
lda #$00
sta CLOCKCTL ; black border
sta CLOCKCTL ; set twice for VidHD
lda #'s'
sta model_patch_1+9
lda #'C'
sta cpu_patch_1+14
sta cpu_patch_2+2
lda #'8'
sta cpu_patch_1+15
sta cpu_patch_2+3
lda #'1'
sta cpu_patch_1+16
sta cpu_patch_2+4
lda #'6'
sta cpu_patch_1+17
sta cpu_patch_2+5
not_iigs:
; update text printed
lda APPLEII_MODEL
cmp #'3'
bne no_not_a_iii
lda #'/' ; 3 slashes
sta model_patch_1+6
sta model_patch_1+7
sta model_patch_1+8
bne hardware_detect_ram ; bra
no_not_a_iii:
lda APPLEII_MODEL
sta model_patch_1+8 ; patch to ' ' '+' 'e' 'c' or 'g'
;=======================
; Hardware Detect RAM
;=======================
hardware_detect_ram:
;=================================================
; assume 48k for base model (not necessarily true)
lda #48 ; FIXME: detect less on earlier models?
sta TOTAL_RAM
;================================================
; detect language card 16k
; could cheat and just make it 64k in this case
; can you have a language card on a 4k system?
jsr detect_language_card
bcs ram_no_lc
ram_yes_lc:
; carry clear here
lda #16
adc TOTAL_RAM
sta TOTAL_RAM
; update text string
lda #'1'
sta lang_card_patch+34
lda #'6'
sta lang_card_patch+35
ram_no_lc:
;================================================
; detect aux memory
; iigs we're lazy and say 64k
; iic always 64k AUX
; iie we have to probe
; in theory can have 0k, 1k or 64k of it
jsr detect_aux_ram
cmp #0
beq ram_no_aux
cmp #1
beq ram_1k_aux
ram_64k_aux:
clc
lda TOTAL_RAM
adc #64
sta TOTAL_RAM
lda #'6'
sta aux_mem_patch+34
lda #'4'
sta aux_mem_patch+35
bne ram_done_aux ; bra
ram_1k_aux:
inc TOTAL_RAM
lda #'1'
sta aux_mem_patch+35
ram_no_aux:
ram_done_aux:
;====================
; detect CPU
;====================
lda APPLEII_MODEL
cmp #'g' ; already handled IIgs
beq done_detect_cpu
jsr detect_65c02
bne was_not_65c02
lda #'C'
sta cpu_patch_1+14
sta cpu_patch_2+2
lda #'0'
sta cpu_patch_1+15
sta cpu_patch_2+3
lda #'2'
sta cpu_patch_1+16
sta cpu_patch_2+4
was_not_65c02:
done_detect_cpu:
;====================
; detect disk slot
;====================
; this depends on DOS3.3 loading
lda $B5F7 ; slot*16
lsr
lsr
lsr
lsr
adc #'0'
sta slot_patch1+1
sta slot_patch2+1
sta slot_patch3+1
sta slot_patch5+7
sta slot_patch6+7
;=====================
; Detect mockingboard
;=====================
lda #0
sta SOUND_STATUS
PT3_ENABLE_APPLE_IIC = 1
jsr mockingboard_detect
bcc mockingboard_notfound
mockingboard_found:
lda MB_ADDR_H
and #$7
ora #$30
sta mock_slot_patch+7
lda SOUND_STATUS
ora #SOUND_MOCKINGBOARD
sta SOUND_STATUS
mockingboard_notfound:
;===================
; Load graphics
;===================
lda #<graphics_data
sta ZX0_src
lda #>graphics_data
sta ZX0_src+1
lda #$20 ; temporarily load to $2000
jsr zx02_full_decomp
; Bios screen 1
lda #0
sta CH
sta CV
lda #<bios_message_1
ldy #>bios_message_1
ldx #5
jsr draw_multiple_strings
lda #0
sta CH
lda #176
sta CV
lda #<bios_message_1a
ldy #>bios_message_1a
ldx #2
jsr draw_multiple_strings
;=========================
; do fake memory count
lda TOTAL_RAM
sta MEMCOUNT
memcount_loop:
lda KEYPRESS ; 4
bmi done_memcount ; 3
lda #100
jsr wait
jsr increment_memory
dec MEMCOUNT
bne memcount_loop
done_memcount:
bit KEYRESET ; clear the keyboard buffer
bit $C0E9 ; turn on drive motor (slot6)
; TODO: drive2 as well?
ldx #200
jsr long_wait
bit $C0E8 ; turn off drive motor (slot6)
;==============================
; print system config screen
;==============================
; TODO:
; clear/fade the energy star logo first
; clear offscreen so no blinds effect
lda #$cc
jsr fade_logo_mask
lda #200
jsr wait
lda #$33
jsr fade_logo_mask
lda #200
jsr wait
; clear screen while offscreen
; avoid blinds effect
jsr hgr_page2_clearscreen
bit PAGE2
jsr hgr_page1_clearscreen
bit PAGE1
jsr BELL
; print first part of message
lda #10
sta CH
lda #0
sta CV
lda #<bios_message_2
ldy #>bios_message_2
ldx #8
jsr draw_multiple_strings
; optionally print mockingboard text
lda SOUND_STATUS
beq print_rest
jsr DrawCondensedStringAgain
print_rest:
; print rest
lda #<super_serial_text
ldy #>super_serial_text
ldx #2
jsr draw_multiple_strings
ldx #10
jsr long_wait
;====================
; print DOS string
;====================
jsr DrawCondensedStringAgain
ldx #10
jsr long_wait
;====================
; type the CD command
;====================
ldx #17
jsr draw_dos_command
jsr DrawCondensedStringAgain
;====================
; type the DIR command
;====================
jsr DrawCondensedStringAgain
ldx #6
jsr draw_dos_command
jsr DrawCondensedStringAgain
;====================
; show DIR
;====================
bit $C0E9 ; turn on drive motor (slot6)
lda #<bios_message_6
ldy #>bios_message_6
ldx #7
jsr draw_multiple_strings
bit $C0E8 ; turn off drive motor (slot6)
;=======================
; type the LEMM command
;=======================
ldx #5
jsr draw_dos_command
end:
jmp end
; 0123456789012345678901234567890123456789
bios_message_1:
.byte "Apple II Modular BIOS",13,0
.byte "Copyright (C) 1977-1991",13,13,0
model_patch_1: ; +8
.byte "Apple II ",13,13,0
cpu_patch_2: ; +2
.byte "6502 CPU at 1.023MHz",13,0
.byte "Memory Test: 0B OK",13,0
bios_message_1a:
.byte "Press ",$17,"-D to enter SETUP",13,0
.byte "02/13/78-6502-564D57",0
bios_message_2:
.byte "System Configuration",13,0
.byte $1D ; 0,8
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$15,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E
.byte $1C, 13,0
cpu_patch_1: ; +14
.byte $1F," CPU Type: 6502 ",$14," Base Memory: 48K ",$1F,13,0 ; 16
lang_card_patch: ; +34
.byte $1F," Co-Proc: NONE ",$14," Lang Card: 0K ",$1F,13,0 ; 24
aux_mem_patch: ; +34
.byte $1F," Clock: 1.023MHz ",$14," AUX Memory: 0K ",$1F,13,0 ; 32
.byte $19 ; 40
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$13,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E
.byte $18, 13, 0
disk_text:
slot_patch5: ;+7
.byte $1F," Slot 6 Disk 1: Disk II 140K ",$1F,13,0 ; 48
slot_patch6:
.byte $1F," Slot 6 Disk 2: Disk II 140K ",$1F,13,0 ; 56
mockingboard_text:
mock_slot_patch: ; +7
.byte $1F," Slot 4 : VIA 6522/Mockingboard ",$1F,13,0 ; 64
super_serial_text:
.byte $1F," Slot 1 : Super Serial Card ",$1F,13,0 ; 72
.byte $1B ; 80
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E,$1E,$1E
.byte $1E,$1E,$1E,$1E,$1E,$1E
.byte $1A, 13,0
bios_message3:
.byte "Starting DOS 3.3...",13,13,0 ; 88
bios_message4:
slot_patch1:
.byte "S6D1>",0 ; 104
.byte "c",0
.byte "d",0
.byte " ",0
.byte "g",0
.byte "a",0
.byte "m",0
.byte "e",0
.byte "s",0
.byte "\",0
.byte "l",0
.byte "e",0
.byte "m",0
.byte "m",0
.byte "i",0
.byte "n",0
.byte "g",0
.byte "s",13,0
bios_message5:
.byte 13,0
slot_patch2:
.byte "S6D1>",0 ; 112
.byte "d",0
.byte "i",0
.byte "r",0
.byte " ",0
.byte "/",0
.byte "w",13,0
bios_message_6:
.byte "Directory of s6d1:\games\lemmings\.",13,0 ; 128
.byte "[.] [..] QBOOT QLOAD",13,0
.byte "LEVEL1 LEVEL2 LEVEL3 LEVEL4",13,0
.byte "LEVEL5 LEVEL6 LEVEL7 LEVEL8",13,0
.byte "LEVEL9 LEVEL10 LEMM",13,0
.byte " 13 File(s) 90,624 Bytes.",13,0
.byte " 2 Dir(s) 52,736 Bytes free.",13,13,0
bios_message7:
slot_patch3:
.byte "S6D1>",0 ; 184
.byte "l",0
.byte "e",0
.byte "m",0
.byte "m",0
.include "font_console_1x8.s"
.include "fonts/a2_cga_thin.inc"
.include "../zx02_optim.s"
graphics_data:
.incbin "graphics/a2_energy.hgr.zx02"
hposn_low = $1713 ; 0xC0 bytes (lifetime, used by DrawLargeCharacter)
hposn_high = $1800 ; 0xC0 bytes (lifetime, used by DrawLargeCharacter)
.include "../hgr_table.s"
wait_until_keypress:
lda KEYPRESS ; 4
bpl wait_until_keypress ; 3
bit KEYRESET ; clear the keyboard buffer
rts ; 6
memcount:
.byte $00,$00,$00
memcount_string:
; .byte 13,48,
.byte $00,$00,$00,$00,$00,$00,0
;================================
;================================
;================================
;================================
increment_memory:
sed
clc
lda memcount+2
adc #$24
sta memcount+2
lda memcount+1
adc #$10
sta memcount+1
lda memcount
adc #0
sta memcount
cld
; copy to output buffer
ldx #0
stx INL
stx LEAD0
do_memcount_loop:
memcount_top_nibble:
lda memcount,X
lsr
lsr
lsr
lsr
bne tn_display_digit
ldy LEAD0
bne tn_display_digit
tn_no_display_digit:
lda #$20 ; space
bne tn_actually_display_digit
tn_display_digit:
clc
adc #$30
sta LEAD0
tn_actually_display_digit:
ldy INL
sta memcount_string,Y
inc INL
memcount_bottom_nibble:
lda memcount,X
and #$f
bne display_digit
ldy LEAD0
bne display_digit
no_display_digit:
lda #$20 ; space
bne actually_display_digit
display_digit:
clc
adc #$30
sta LEAD0
actually_display_digit:
ldy INL
sta memcount_string,Y
inc INL
inx
cpx #3
bne do_memcount_loop
bit SPEAKER
lda #13
sta CH
lda #48
sta CV
lda #<memcount_string
ldy #>memcount_string
jmp DrawCondensedString ; tail call
;==============================
;==============================
;==============================
;==============================
draw_multiple_strings:
dex
stx STRING_COUNT
jsr DrawCondensedString
multiple_loop:
jsr DrawCondensedStringAgain
dec STRING_COUNT
bne multiple_loop
rts
;==============================
;==============================
;==============================
;==============================
draw_dos_command:
stx STRING_COUNT
dos_command_loop:
jsr DrawCondensedStringAgain
lda OUTL
pha
lda OUTH
pha
dos_command_inner:
; draw curosr
lda #<dos_cursor
ldy #>dos_cursor
jsr DrawCondensedString
dec CH
lda #200
jsr wait
lda KEYPRESS
bmi dos_keypress
jsr DrawCondensedStringAgain
dec CH
lda #200
jsr wait
lda KEYPRESS
bmi dos_keypress
jmp dos_command_inner
dos_keypress:
bit KEYRESET
lda #<dos_space
ldy #>dos_space
jsr DrawCondensedString
dec CH
pla
sta OUTH
pla
sta OUTL
dec STRING_COUNT
bne dos_command_loop
rts
dos_cursor:
.byte "_",0
dos_space:
.byte " ",0
;=======================
;=======================
;=======================
; 210,0 to 210,64
fade_logo_mask:
sta mask_smc+1
fade_logo:
ldx #63
outer_loop:
lda hposn_low,X
sta inner_loop_smc1+1
sta inner_loop_smc2+1
lda hposn_high,X
sta inner_loop_smc1+2
sta inner_loop_smc2+2
ldy #39
inner_loop:
inner_loop_smc1:
lda $2000,Y
mask_smc:
and #$CC
inner_loop_smc2:
sta $2000,Y
dey
cpy #29
bne inner_loop
dex
bpl outer_loop
rts
; in X
long_wait:
lda #200
jsr wait
lda KEYPRESS
bmi early_out
dex
bne long_wait
early_out:
bit KEYRESET
rts
.include "../hgr_clear_screen.s"
.include "pt3_lib_detect_model.s"
.include "../lc_detect.s"
.include "aux_detect.s"
.include "65c02_detect.s"
.include "pt3_lib_mockingboard_setup.s"
.include "../pt3_lib_mockingboard_detect.s"
.include "../wait.s"
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