2020/c64/main.asm

// vim: filetype=kickass

#import "math.inc"

    BasicUpstart2(main)

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

.const kernal_scinit = $ff81
.const kernal_chrout = $ffd2
.const kernal_write_byte = $e716

.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
    }
}

test_tree:
    move_16_imm($03, !str_test+)
    jsr write_string

    move_16_imm($03, $10)
    jsr tree_insert
    move_16_imm($03, $08)
    jsr tree_insert
    move_16_imm($03, $04)
    jsr tree_insert
    move_16_imm($03, $12)
    jsr tree_insert
    move_16_imm($03, $1337)
    jsr tree_insert


    move_16_imm($03, $08)
    jsr tree_contains
    bne !fail+

    move_16_imm($03, $13)
    jsr tree_contains
    beq !fail+

    move_16_imm($03, $12)
    jsr tree_contains
    bne !fail+

    move_16_imm($03, $1337)
    jsr tree_contains
    bne !fail+

    move_16_imm($03, $0420)
    jsr tree_contains
    beq !fail+

    move_16_imm($03, !str_success+)
    jsr write_string

    rts

!fail:
    u16_u16_move($10, $03)

    move_16_imm($03, !str_fail+)
    jsr write_string

    lda $11
    jsr print_hex_0x
    lda $10
    jsr print_hex
    jsr print_newline

    rts

!str_test:
    .text "[  ] test-tree"
    .byte '\r', 0

!str_fail:
    .text "[!!]"
    .byte '\n'
    .text "Failed: "
    .byte 0

!str_success:
    .text "[OK]"
    .byte '\n', 0


//
// main
//
main:
    jsr clear_screen

    // Swap out BASIC and kernal
    sei
    lda %00110000
    sta $01

    jsr generate_multiplication_tables
    //jsr test_tree


    jsr day01

!loop:
    jmp !loop-


#import "day01.asm"
#import "screen.asm"
#import "math.asm"
#import "btree.asm"

* = *     "Day 01 Input"
day01_input:
    .import text "../rust/inputs/day01"
    .byte 0

    .align $100
* = * "Square table"
square1_lo:
    .fill 512, 0
square1_hi:
    .fill 512, 0
square2_lo:
    .fill 512, 0
square2_hi:
    .fill 512, 0