// vim: filetype=kickass

#import "math.inc"

    BasicUpstart2(main)

* = $1000 "Main program"
.const SCREEN_RAM = $0400
.const COLOR_RAM = $d800

.const zp_temp = $02
.const cursor_pointer_lo = $05
.const cursor_pointer_hi = $06

.macro move_16_imm(dst, imm) {
    lda #<imm
    sta dst
    lda #>imm
    sta dst + 1
}

.macro u16_u16_move(dst, src) {
    .for (var i = 0; i < 2; i++) {
        lda src + i
        sta dst + i
    }
}

.macro u32_u32_move(dst, src) {
    .for (var i = 0; i < 4; i++) {
        lda src + i
        sta dst + i
    }
}

.macro u32_u32_move_imm(dst, imm) {
    .for (var i = 0; i < 4; i++) {
        lda #((imm >> (i * 8)) & $ff)
        sta dst + i
    }
}

//
// main
//
main:
    sei
    lda #$35
    sta $01

    lda #49
    sta $07
    jsr setup_interrupt

    jsr clear_screen
    jsr draw_menu

    jsr generate_multiplication_tables

    !:
        jsr menu_update
    jmp !-


#import "screen.asm"
#import "math.asm"
#import "menu.asm"

*=$2000 "Sprite"
.align 64
sprite1:
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $A0
	.byte $00, $0A, $B8
	.byte $00, $AB, $F8
	.byte $0A, $BF, $FE
	.byte $AB, $FF, $FE
	.byte $BF, $FF, $FF
	.byte $BF, $FF, $FD
	.byte $BF, $FF, $D5
	.byte $BF, $FD, $57
	.byte $2F, $D5, $7F
	.byte $2D, $57, $FF


.align 64
sprite2:
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $80, $00, $00
	.byte $80, $00, $00
	.byte $A0, $00, $00
	.byte $E0, $00, $00
	.byte $E8, $02, $80	

.align 64
sprite3:
	.byte $09, $7F, $FF
	.byte $0B, $FF, $FF
	.byte $0B, $FF, $F5
	.byte $02, $FF, $5A
	.byte $02, $F5, $5B
	.byte $00, $95, $FA
	.byte $00, $9F, $FE
	.byte $00, $BF, $FE
	.byte $00, $2F, $FF
	.byte $00, $2F, $FF
	.byte $00, $0B, $F5
	.byte $00, $0B, $55
	.byte $00, $09, $5F
	.byte $00, $02, $FF
	.byte $00, $02, $BF
	.byte $00, $00, $BF
	.byte $00, $00, $AE
	.byte $00, $00, $2A
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00

.align 64
sprite4:
    .byte $F8, $2B, $80
	.byte $FA, $BF, $E0
	.byte $EB, $FF, $E0
	.byte $BF, $FF, $E0
	.byte $FF, $FF, $E0
	.byte $FF, $FF, $F8
	.byte $FF, $FF, $D8
	.byte $FF, $FD, $58
	.byte $BF, $D5, $78
	.byte $BD, $57, $F8
	.byte $95, $7F, $E0
	.byte $97, $FF, $E0
	.byte $BF, $FF, $A0
	.byte $BF, $FE, $80
	.byte $BF, $FA, $00
	.byte $BF, $A8, $00
	.byte $FA, $80, $00
	.byte $A8, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00
	.byte $00, $00, $00


.align 256
flip_map:
    .for (var i = 0; i < 256; i++) {
	// 11001001 >> 6 =       11 & $03 ==       11
	// 11001001 >> 2 =   110010 & $0c ==     00
	// 11001001 << 2 = 001001   & $30 ==   10
	// 11001001 << 6 = 01       & $c0 == 01
	//                                   -------- |
	//                                   01100011
	.byte ((i >> 6) & $03) | ((i >> 2) & $0c) | ((i << 2) & $30) | ((i << 6) & $c0)
    }

#import "day01.asm"
#import "day02.asm"
#import "day05.asm"
#import "day09.asm"
#import "btree.asm"