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Gabriel Tofvesson 2019-04-27 00:44:06 +02:00
parent fd188204b4
commit 0f5c426699
1 changed files with 107 additions and 172 deletions
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279
ucode/sort4.uc
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@ -1,19 +1,14 @@
// Hi! If you're reading this, you probably want to know what this program does
// To that, I say: Good luck and I hope you have patience and a strong will to
// live, 'cause both negatively impacted by trying to read the code below.
// live, 'cause both will be negatively impacted by trying to read the code
// below.
// This isn't a joke; I feel like someone telling a person to get off the edge
// of a tall building here: reading the code below WILL negatively impact your
// life. You have been warned.
#define LIST_START 0xE0
#define LIST_END 0xFE
#define LIST_START_MODIFIED 0xDF
#define LIST_END_MODIFIED 0xFD
#define HASH_MASK 0b1111000
#define NEGATIVE_START 0x40
#define NEGATIVE_END 0x78
#define POSITIVE_START 0x00
#define POSITIVE_END 0x38
#define LIST_END 0x00
#define HIGHEST_BUCKET 0x78
#define BUCKET_SIZE 8
#define BUCKET_INDEX_TRACKER 0b11111000
@ -56,178 +51,118 @@
#data 0x78 0x00 // F (NEGATIVE)
// Shift list down by one address, freeing up 0xFF for random-access use
reset asr
mov pm hr
const LIST_START_MODIFIED
mov ar asr
mov hr pm
// Set all GR-registers to -1, so that we always can call "sub gr" to increment
// AR, no matter what value we have in IR ;)
const 0x100
mov ar ir
reset gr
reset grm
const 0xB00
mov ar ir
reset gr
reset grm
// Initialize PC to point at list
//const LIST_START
const LIST_START
mov ar pc
$BUCKET_SORT_START
// AR = PM[PC]
// HR = PM[PC + 1]
// First value to be sorted
mov pc asr; incpc
mov pm ir; call @JTABLE
mov pc asr
mov pm hr
// Hash HR, partially hash AR.
// Result of HR-hash is in AR
// Result of AR-hash is in HR
irl; mov ar gr // PM[0xFF] = AR
irl; reset asr
irl; mov gr pm
irl; mov pc asr // Set GR to pre-hash value of HR
irl; mov pm gr
irl
irl
and HASH_MASK
mov ar asr
mov pm lc; mov pm pc
incpc
mov pm pc; mov pm lc
sub gr; incpc
mov pc pm
mov ar pc
$FIRST_INSERTION
incpc; bls @FIRST_INSERTION_END_BIGGEST
mov pc asr
mov pc asr; bls @FIRST_INSERTION_END_BIGGEST
mov pm ar
sub gr
adn gr; brn @FIRST_INSERTION_BOTTOM
sub ir
adn ir; brn @FIRST_INSERTION_BOTTOM
mov gr pm; incpc
mov ir pm; incpc
$FIRST_INSERTION_SHIFT
mov pc asr; bls @FIRST_INSERTION_END_NOTBIGGEST
mov pm gr
mov pm ir
mov ar pm
mov gr ar; declc; incpc; bra @FIRST_INSERTION_SHIFT
mov ir ar; declc; incpc; bra @FIRST_INSERTION_SHIFT
$FIRST_INSERTION_BOTTOM
declc; bra @FIRST_INSERTION
declc; incpc; bra @FIRST_INSERTION
$FIRST_INSERTION_END_BIGGEST
mov pc asr
mov gr pm
mov ir pm
$FIRST_INSERTION_END_NOTBIGGEST
// Prepare second insertion (minimal bookkeeping)
mov hr ar
and HASH_MASK
mov ar asr
// Second value to be sorted
mov hr pc
mov pc asr; incpc
mov pm ir; call @JTABLE
mov pm pc; mov pm lc
incpc; reset asr
mov pm gr
mov ar asr
sub gr; incpc
mov pc pm
mov ar pc
$SECOND_INSERTION
incpc; bls @SECOND_INSERTION_END_BIGGEST
mov pc asr
mov pc asr; bls @SECOND_INSERTION_END_BIGGEST
mov pm ar
sub gr
adn gr; brn @SECOND_INSERTION_BOTTOM
sub ir
adn ir; brn @SECOND_INSERTION_BOTTOM
mov gr pm; incpc
mov ir pm; incpc
$SECOND_INSERTION_SHIFT
mov pc asr; bls @SECOND_INSERTION_END_NOTBIGGEST
mov pm gr
mov pm ir
mov ar pm
mov gr ar; declc; incpc; bra @SECOND_INSERTION_SHIFT
mov ir ar; declc; incpc; bra @SECOND_INSERTION_SHIFT
$SECOND_INSERTION_BOTTOM
declc; bra @SECOND_INSERTION
declc; incpc; bra @SECOND_INSERTION
$SECOND_INSERTION_END_BIGGEST
mov pc asr
mov gr pm
mov ir pm
$SECOND_INSERTION_END_NOTBIGGEST
mov ir ar; mov ir pc
sub LIST_END_MODIFIED
brz @BUCKET_SORT_END; incpc
bra @BUCKET_SORT_START; incpc
mov hr ar; mov hr pc
sub LIST_END
bnz @BUCKET_SORT_START
$BUCKET_SORT_END
//call @BREAK
// Merge negative values
const NEGATIVE_END
const BUCKET_SIZE
mov ar hr
const NEGATIVE_START
const HIGHEST_BUCKET
mov ar pc
const LIST_START
$NEGATIVE_MERGE
mov pc ir
$MERGE
mov pc asr; incpc
mov pm lc
$NEGATIVE_MERGE_MOVE
mov pc asr; bls @NEGATIVE_MERGE_BOTTOM
$MERGE_MOVE
mov pc asr; bls @MERGE_BOTTOM
mov pm gr
mov ar asr
add 1
mov gr pm; declc; incpc; bra @NEGATIVE_MERGE_MOVE
mov gr pm; declc; incpc; bra @MERGE_MOVE
$NEGATIVE_MERGE_BOTTOM
mov ar gr
mov ir ar
sub hr
adn hr; brz @POSITIVE_MERGE_INIT
add BUCKET_SIZE
mov ar pc
mov gr ar; bra @NEGATIVE_MERGE
// Merge positive values
$POSITIVE_MERGE_INIT
const POSITIVE_END
mov ar hr
const POSITIVE_START
mov ar pc
mov gr ar // Pop AR
$POSITIVE_MERGE
mov pc asr; incpc
mov pm lc
$POSITIVE_MERGE_MOVE
mov pc asr; bls @POSITIVE_MERGE_BOTTOM
mov pm gr
mov ar asr
add 1
mov gr pm; declc; incpc; bra @POSITIVE_MERGE_MOVE
$POSITIVE_MERGE_BOTTOM
$MERGE_BOTTOM
mov ar gr
mov pc ar
and BUCKET_INDEX_TRACKER
sub hr
adn hr; brz @PROGRAM_END
adn BUCKET_SIZE
sub hr; brz @PROGRAM_END
mov ar pc
mov gr ar; bra @POSITIVE_MERGE
mov gr ar; bra @MERGE
$PROGRAM_END
@ -239,70 +174,70 @@ halt
// Jump-table subroutine
$JTABLE
mov pm hr; bop
mov pc hr; bop
// IR OP-field jump table
$OT_0
const 0x70
mov ar asr; ret
$OT_1
const 0x7e
mov ar asr; ret
$OT_2
const 0x8c
mov ar asr; ret
$OT_3
const 0x9a
mov ar asr; ret
$OT_4
const 0xa8
mov ar asr; ret
$OT_5
const 0xb6
mov ar asr; ret
$OT_6
const 0xc4
mov ar asr; ret
$OT_7
const 0xd2
mov ar asr; ret
$OT_8
const 0x00
mov ar asr; ret
$OT_9
const 0x0e
mov ar asr; ret
$OT_A
const 0x1c
mov ar asr; ret
$OT_B
const 0x2a
mov ar asr; ret
$OT_C
const 0x38
mov ar asr; ret
$OT_1
const 0x30
mov ar asr; ret
$OT_2
const 0x28
mov ar asr; ret
$OT_3
const 0x20
mov ar asr; ret
$OT_4
const 0x18
mov ar asr; ret
$OT_5
const 0x10
mov ar asr; ret
$OT_6
const 0x08
mov ar asr; ret
$OT_7
const 0x00
mov ar asr; ret
$OT_8
const 0x78
mov ar asr; ret
$OT_9
const 0x70
mov ar asr; ret
$OT_A
const 0x68
mov ar asr; ret
$OT_B
const 0x60
mov ar asr; ret
$OT_C
const 0x58
mov ar asr; ret
$OT_D
const 0x46
const 0x50
mov ar asr; ret
$OT_E
const 0x54
const 0x48
mov ar asr; ret
$OT_F
const 0x62
const 0x40
mov ar asr; ret