Chiptunes.git
2 years agooptimize mul_8c / mul_84
Tobias Girstmair [Tue, 11 Dec 2018 21:47:07 +0000 (22:47 +0100)]
optimize mul_8c / mul_84

2 years agorefactor mul .macros
Tobias Girstmair [Tue, 11 Dec 2018 21:22:52 +0000 (22:22 +0100)]
refactor mul .macros

2 years agoadd debug pin, remove 2 unnecessary instructions
Tobias Girstmair [Tue, 11 Dec 2018 20:58:15 +0000 (21:58 +0100)]
add debug pin, remove 2 unnecessary instructions

2 years agoinitialisation code, interrupt vector table
Tobias Girstmair [Tue, 11 Dec 2018 02:25:03 +0000 (03:25 +0100)]
initialisation code, interrupt vector table

it werks! (it's completely out of tune and too fast, but audio is coming
out of the chip. program at 5v, then play at 3v3. chip can't handle the
stereo amp, but headphones work)

2 years agotranscribe fakeasm into realasm (IV)
Tobias Girstmair [Tue, 11 Dec 2018 01:30:35 +0000 (02:30 +0100)]
transcribe fakeasm into realasm (IV)

2 years agotranscribe fakeasm into realasm (III)
Tobias Girstmair [Tue, 11 Dec 2018 01:15:07 +0000 (02:15 +0100)]
transcribe fakeasm into realasm (III)

2 years agotranscribe fakeasm into realasm (II)
Tobias Girstmair [Tue, 11 Dec 2018 01:06:41 +0000 (02:06 +0100)]
transcribe fakeasm into realasm (II)

2 years agotranscribe fakeasm into realasm (I)
Tobias Girstmair [Tue, 11 Dec 2018 01:03:47 +0000 (02:03 +0100)]
transcribe fakeasm into realasm (I)

2 years agopreparing for C -> ASM
Tobias Girstmair [Tue, 11 Dec 2018 00:48:46 +0000 (01:48 +0100)]
preparing for C -> ASM

2 years agoimport Makefile
Tobias Girstmair [Tue, 11 Dec 2018 00:47:47 +0000 (01:47 +0100)]
import Makefile

2 years agonew version
Tobias Girstmair [Tue, 11 Dec 2018 00:38:43 +0000 (01:38 +0100)]
new version

using this we can save a few more cycles (code size not yet compared).
working principle:
 we can distinguish which number to multiply by with the lower nibble
 only. to have maximum overlap, use a decision tree to select where to
 go. the upper nibble is then just a straight path (there is not much
 to deduplicate).

worst case (roughly):
- mul-tree: 30cy tree + 5cy to load data[t]
- cpi-breq-rjmp: 37cy mul_xx + 5cy to load data[t]
- ldZ-ijmp: 28cy mul_xx + 10cy to load mul_jmptable[t]

2 years agonew version
Tobias Girstmair [Mon, 10 Dec 2018 23:44:03 +0000 (00:44 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 21:50:43 +0000 (22:50 +0100)]
new version

bring cycle count down from 425 to 409

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 20:45:30 +0000 (21:45 +0100)]
new version

NOTE: `t` and `x` registers swapped, otherwise we would overwrite Xlo

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 20:29:07 +0000 (21:29 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:37:26 +0000 (20:37 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:36:11 +0000 (20:36 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:34:48 +0000 (20:34 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:15:41 +0000 (20:15 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:09:06 +0000 (20:09 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:02:55 +0000 (20:02 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sun, 18 Nov 2018 19:01:01 +0000 (20:01 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 20:21:50 +0000 (21:21 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 20:12:26 +0000 (21:12 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 20:07:57 +0000 (21:07 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 20:01:03 +0000 (21:01 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:59:16 +0000 (20:59 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:53:38 +0000 (20:53 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:44:48 +0000 (20:44 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:42:45 +0000 (20:42 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:42:04 +0000 (20:42 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:40:37 +0000 (20:40 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 19:31:00 +0000 (20:31 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 17:51:19 +0000 (18:51 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 17:44:31 +0000 (18:44 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 17:42:30 +0000 (18:42 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 17:33:40 +0000 (18:33 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 17:29:35 +0000 (18:29 +0100)]
new version

2 years agonew version
Tobias Girstmair [Sat, 17 Nov 2018 12:16:56 +0000 (13:16 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 19:00:33 +0000 (20:00 +0100)]
new version

var to register association (not final, but close)

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:54:29 +0000 (19:54 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:52:16 +0000 (19:52 +0100)]
new version

check which registers are first used by MOV, which rely on being cleared

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:42:30 +0000 (19:42 +0100)]
new version

use `_` as tmpregister consistently; use x as Xhi

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:29:22 +0000 (19:29 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:20:23 +0000 (19:20 +0100)]
new version

can now get rid of `o` completely, saving 1 register

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:20:11 +0000 (19:20 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:18:33 +0000 (19:18 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:17:47 +0000 (19:17 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:16:31 +0000 (19:16 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:14:59 +0000 (19:14 +0100)]
new version

move `o` out of g() to get rid of variable shift

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:10:39 +0000 (19:10 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:10:14 +0000 (19:10 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:09:22 +0000 (19:09 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 18:07:54 +0000 (19:07 +0100)]
new version

move `x` out of g(), so we can use it as tempvar in g()

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 17:54:46 +0000 (18:54 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 17:50:14 +0000 (18:50 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 17:47:54 +0000 (18:47 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 17:45:42 +0000 (18:45 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 17:38:27 +0000 (18:38 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 17:16:17 +0000 (18:16 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:51:54 +0000 (17:51 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:18:51 +0000 (17:18 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:13:26 +0000 (17:13 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:12:49 +0000 (17:12 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:12:28 +0000 (17:12 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:08:34 +0000 (17:08 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:07:52 +0000 (17:07 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 16:05:36 +0000 (17:05 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 15:54:17 +0000 (16:54 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 15:51:28 +0000 (16:51 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:54:11 +0000 (03:54 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:43:30 +0000 (03:43 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:37:17 +0000 (03:37 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:31:26 +0000 (03:31 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:27:42 +0000 (03:27 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:23:06 +0000 (03:23 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:22:39 +0000 (03:22 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:13:10 +0000 (03:13 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:12:09 +0000 (03:12 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 02:11:02 +0000 (03:11 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 01:59:37 +0000 (02:59 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 01:56:21 +0000 (02:56 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 01:54:43 +0000 (02:54 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 01:53:22 +0000 (02:53 +0100)]
new version

WARN: breaks at ~ 70min, but who cares

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:33:18 +0000 (01:33 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:31:03 +0000 (01:31 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:28:05 +0000 (01:28 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:27:28 +0000 (01:27 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:26:51 +0000 (01:26 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:25:40 +0000 (01:25 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:24:55 +0000 (01:24 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:20:27 +0000 (01:20 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:19:21 +0000 (01:19 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:19:05 +0000 (01:19 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:17:00 +0000 (01:17 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:16:33 +0000 (01:16 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:15:41 +0000 (01:15 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:15:28 +0000 (01:15 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:14:48 +0000 (01:14 +0100)]
new version

2 years agonew version
Tobias Girstmair [Tue, 13 Nov 2018 00:13:50 +0000 (01:13 +0100)]
new version

Imprint / Impressum