From Newsgroup: alt.lang.asm

Easter in 120 bytes

minEast.com:

debug format:

d 100 l78

1639:0100 B9 04 00 BE-82 00 BF 65-01 31 ED B3-0A AC 2C 30 .......e.1....,0 1639:0110 98 72 07 95-F7 E3 01 C5-E2 F3 89 E8-B1 13 99 F7 .r.............. 1639:0120 F1 88 D3 8A-19 8D 86 94-F8 89 C2 D1-E8 D1 E8 01 ................ 1639:0130 D0 83 C0 03-01 D8 99 B1-07 F7 F1 89-C8 28 D0 75 .............(.u 1639:0140 01 91 00 D8-B2 33 3C 1F-76 03 2C 1F-42 57 D4 0A .....3<.v.,.BW.. 1639:0150 35 30 30 86-E0 AB B0 20-AA 92 AA B8-20 24 AB 5A 500.... .... $.Z 1639:0160 B4 09 CD 21-C3 2D 22 17-2A 1F 31 27-1C 2F 24 19 ...!.-".*.1'./$. 1639:0170-2C 21 16 29-1E 30 26 1B ,!.).0&.

q

Hexdump format: B90400BE8200BF650131EDB30AAC2C3098720795F7E301C5E2F389E8B11399F7 F188D38A198D8694F889C2D1E8D1E801D083C00301D899B107F7F189C828D075 019100D8B2333C1F76032C1F4257D40A35303086E0ABB020AA92AAB82024AB5A B409CD21C32D22172A1F31271C2F24192C2116291E30261B

valid only for 1900-2099 (tested)

Uses a fixed GN table taken from https://boyet.com/blog/calculating-the-date-of-easter-for-a-particular-year/


Due to cutbacks there's no easter egg inside, sorry.

The program deliberately doesn't add a crlf (just a space), so one can
append the year by running in batch i.e.


@echo off
@rem showeast.bat
if @%1 == @ goto Usage
rem put 'day mth'
minEast %1
rem add 'year'
echo %1
goto :Exit
:Usage
echo Usage is: %0 yyyy
echo where yyyy is in range 1900-2099
echo Output is Day Month Year
:Exit


Example:

showeast 2025

20 4 2025



For those of you with the strange date format 'm d yyyy'
that'd be April 20th this year.
--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Sun, 23 Mar 2025 07:16:05 +0000
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

Bigger range Easter program [111] bytes

minEast2.com:

debug format:

d 100 l6f

1639:0100 99 89 C5 BF-0A 00 BE 82-00 98 01 E8-88 FB 88 CF ................ 1639:0110 89 C1 F7 E7-95 AC 2C 30-73 EF 91 B2-13 F6 F2 92 ......,0s....... 1639:0120 F6 E6 96 88-D8 89 C3 89-C2 B1 02 D3-EA 29 D3 53 .............).S 1639:0130 41 D3 ED F6-F1 28 C3 8D-40 0F B9 1E-00 F6 F1 3D A....(..@......= 1639:0140 06 1C 10 E1-58 29 E8 83-C0 07 39 C8-7C F9 BB 20 ....X)....9.|.. 1639:0150 34 2C 28 77-04 FE CF 04-1F B2 F9 89-D7 D4 0A 35 4,(w...........5 1639:0160 30 30 86-E0 AB 93 AB-B0 24 AB B4-09 CD 21 C3 00......$....!.

q

Hexdump format:

99 89 C5 BF 0A 00 BE 82 00 98 01 E8 88 FB 88 CF
89 C1 F7 E7 95 AC 2C 30 73 EF 91 B2 13 F6 F2 92
F6 E6 96 88 D8 89 C3 89 C2 B1 02 D3 EA 29 D3 53
41 D3 ED F6 F1 28 C3 8D 40 0F B9 1E 00 F6 F1 3D
06 1C 10 E1 58 29 E8 83 C0 07 39 C8 7C F9 BB 20
34 2C 28 77 04 FE CF 04 1F B2 F9 89 D7 D4 0A 35
30 30 86 E0 AB 93 AB B0 24 AB B4 09 CD 21 C3


valid for 1753-4000 (tested 1753 - 2099)

Uses Oudin's Algorithm, with code taken from Hugo Size Coding Compo #20
runner up Sergo Polsky

The program deliberately doesn't add a crlf (just a space), so one can
append the year by running in batch i.e.

showeast.bat

@echo off
@rem showeast.bat
if @%1 == @ goto Usage
rem put 'day mth'
minEast %1
rem add 'year'
echo %1
goto :EOF
:Usage
echo Usage is: %0 yyyy
echo where yyyy is in range 1900-2099
echo Output is Day Month Year

Example:

showeast 2025

20 4 2025

For those of you with the strange date format 'm d yyyy'
that'd be April 20th this year.

--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

Updated to correct batch file:

On Thu, 3 Apr 2025 21:07:08 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Sun, 23 Mar 2025 07:16:05 +0000
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

Bigger range Easter program [111] bytes

minEast2.com:

debug format:

d 100 l6f

1639:0100 99 89 C5 BF-0A 00 BE 82-00 98 01 E8-88 FB 88 CF ................ 1639:0110 89 C1 F7 E7-95 AC 2C 30-73 EF 91 B2-13 F6 F2 92 ......,0s....... 1639:0120 F6 E6 96 88-D8 89 C3 89-C2 B1 02 D3-EA 29 D3 53 .............).S 1639:0130 41 D3 ED F6-F1 28 C3 8D-40 0F B9 1E-00 F6 F1 3D A....(..@......= 1639:0140 06 1C 10 E1-58 29 E8 83-C0 07 39 C8-7C F9 BB 20 ....X)....9.|.. 1639:0150 34 2C 28 77-04 FE CF 04-1F B2 F9 89-D7 D4 0A 35 4,(w...........5 1639:0160 30 30 86-E0 AB 93 AB-B0 24 AB B4-09 CD 21 C3 00......$....!.

q

Hexdump format:

99 89 C5 BF 0A 00 BE 82 00 98 01 E8 88 FB 88 CF
89 C1 F7 E7 95 AC 2C 30 73 EF 91 B2 13 F6 F2 92
F6 E6 96 88 D8 89 C3 89 C2 B1 02 D3 EA 29 D3 53
41 D3 ED F6 F1 28 C3 8D 40 0F B9 1E 00 F6 F1 3D
06 1C 10 E1 58 29 E8 83 C0 07 39 C8 7C F9 BB 20
34 2C 28 77 04 FE CF 04 1F B2 F9 89 D7 D4 0A 35
30 30 86 E0 AB 93 AB B0 24 AB B4 09 CD 21 C3

valid for 1753-4000 (tested 1753 - 2099)

Uses Oudin's Algorithm, with code taken from Hugo Size Coding Compo #20 runner up Sergo Polsky

The program deliberately doesn't add a crlf (just a space), so one can append the year by running in batch i.e.

showeast.bat

@echo off
@rem showeast.bat
if @%1 == @ goto Usage
rem put 'day mth'
minEast %1

minEast2 %1

rem add 'year'
echo %1
goto :EOF
:Usage
echo Usage is: %0 yyyy
echo where yyyy is in range 1900-2099

echo where yyyy is in range 1753-4000

echo Output is Day Month Year

Example:

showeast 2025

20 4 2025

For those of you with the strange date format 'm d yyyy'
that'd be April 20th this year.

--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Fri, 4 Apr 2025 09:46:43 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

Cheaper again!

On Sun, 23 Mar 2025 07:16:05 +0000
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

Bigger range Easter program [111] bytes

minEast2.com:

feh: I put up code I've been poring over for days, then next day
find a shorter way:

(my ref: minease7, anyone following this should name it mineast2 if
using the batch below)

[106 bytes]

d 100 l6A

1639:0100 99 BF 0A 00-BE 82 00 01-D0 89 EB 89-CD 89 C1 F7 ................ 1639:0110 E7 92 AC 2C-30 73 F0 91-B1 13 F6 F1-91 F6 E5 96 ...,0s.......... 1639:0120 B9 02 00 89-D8 89 C5 D3-ED 29 EB 53-41 D3 EA F6 .........).SA... 1639:0130 F1 28 C3 8D-40 0F B1 1E-F6 F1 3D 06-1C 10 E1 58 .(..@.....=....X 1639:0140 29 D0 83 C0-07 39 C8 7C-F9 BB 20 34-2C 28 77 04 )....9.|.. 4,(w. 1639:0150 FE CF 04 1F-B2 F9 89 D7-D4 0A 35 30-30 86 E0 AB ..........500... 1639:0160 93 AB-B4 24 AB B4-09 CD 21 C3 ...$....!.

q

99BF 0A00 BE82 0001 D089 EB89 CD89 C1F7 E792 AC2C 3073 F091 B113 F6F1 91F6
E596 B902 0089 D889 C5D3 ED29 EB53 41D3 EAF6 F128 C38D 400F B11E F6F1 3D06
1C10 E158 29D0 83C0 0739 C87C F9BB 2034 2C28 7704 FECF 041F B2F9 89D7 D40A
3530 3086 E0AB 93AB B424 ABB4 09CD 21C3

valid for 1753-4000 (tested 1753 - 2099)

Uses Oudin's Algorithm, with code taken from Hugo Size Coding Compo #20 runner up Sergo Polsky

The program deliberately doesn't add a crlf (just a space), so one can append the year by running in batch i.e.

showeast.bat

@echo off
@rem showeast.bat
if @%1 == @ goto Usage
rem put 'day mth'

minEast2 %1

rem add 'year'
echo %1
goto :EOF
:Usage
echo Usage is: %0 yyyy

echo where yyyy is in range 1753-4000

echo Output is Day Month Year

Example:

showeast 2025

20 4 2025

For those of you with the strange date format 'm d yyyy'
that'd be April 20th this year.

--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

Easter in 120 bytes

minEast.com:

debug format:

d 100 l78

1639:0100 B9 04 00 BE-82 00 BF 65-01 31 ED B3-0A AC 2C 30 .......e.1....,0 >1639:0110 98 72 07 95-F7 E3 01 C5-E2 F3 89 E8-B1 13 99 F7 .r.............. >1639:0120 F1 88 D3 8A-19 8D 86 94-F8 89 C2 D1-E8 D1 E8 01 ................ >1639:0130 D0 83 C0 03-01 D8 99 B1-07 F7 F1 89-C8 28 D0 75 .............(.u >1639:0140 01 91 00 D8-B2 33 3C 1F-76 03 2C 1F-42 57 D4 0A .....3<.v.,.BW.. >1639:0150 35 30 30 86-E0 AB B0 20-AA 92 AA B8-20 24 AB 5A 500.... .... $.Z >1639:0160 B4 09 CD 21-C3 2D 22 17-2A 1F 31 27-1C 2F 24 19 ...!.-".*.1'./$. >1639:0170-2C 21 16 29-1E 30 26 1B ,!.).0&.

q

Hexdump format: >B90400BE8200BF650131EDB30AAC2C3098720795F7E301C5E2F389E8B11399F7 >F188D38A198D8694F889C2D1E8D1E801D083C00301D899B107F7F189C828D075 >019100D8B2333C1F76032C1F4257D40A35303086E0ABB020AA92AAB82024AB5A >B409CD21C32D22172A1F31271C2F24192C2116291E30261B

valid only for 1900-2099 (tested)

Uses a fixed GN table taken from >https://boyet.com/blog/calculating-the-date-of-easter-for-a-particular-year/

Due to cutbacks there's no easter egg inside, sorry.

The program deliberately doesn't add a crlf (just a space), so one can
append the year by running in batch i.e.

@echo off
@rem showeast.bat
if @%1 == @ goto Usage
rem put 'day mth'
minEast %1
rem add 'year'
echo %1
goto :Exit
:Usage
echo Usage is: %0 yyyy
echo where yyyy is in range 1900-2099
echo Output is Day Month Year
:Exit

Example:

showeast 2025

20 4 2025

For those of you with the strange date format 'm d yyyy'
that'd be April 20th this year.

Here it is the program for calculate the date of Easter, it is the
traslation in asm of algorithm find in this site: https://web.archive.org/web/20150227133210/http://www.merlyn.demon.co.uk/estralgs.txt
algo would be:
----------------------------------------
Al Petrofsky, San Mateo County, California, U.S.A., E-mail 2009-05-22
function Easter20ops(YR) {
var a = ~~(YR / 100) * 1483 - ~~(YR / 400) * 2225 + 2613;
var b = ~~((YR % 19 * 3510 + ~~(a / 25) * 319) / 330) % 29;
return 56 - b - (~~(YR * 5 / 4) + a - b) % 7;
// To get Month & Day in 23 total arithmetic operations, use:
// c = 148 - b - (~~(YR * 5 / 4) + a - b) % 7;
// Month = ~~(c / 31);
// Day = c % 31 + 1;
}
------------------------------------------
so this:
function Easter20ops(YR) {
var a = ~~(YR / 100) * 1483 - ~~(YR / 400) * 2225 + 2613;
var b = ~~((YR % 19 * 3510 + ~~(a / 25) * 319) / 330) % 29;
c = 148 - b - (~~(YR * 5 / 4) + a - b) % 7;
// Month = ~~(c / 31);
// Day = c % 31 + 1;
}
I not have done many tests on it, I only be sure on Easter of years
2024 and 2025... It use only integer instructions, no float
instruction.
section _DATA use32 public class=DATA
global _main
extern _printf
II02dII02dIIuIn db "%02d-%02d-%u" , 13, 10, 0
section _BSS use32 public class=BSS
section _TEXT use32 public class=CODE
;0i,4ra,8Par
; vi * il valore risultato r a
;0k,4j,8i,12b,16ra,20Ival
align 4
Easter:
push ebx
push esi
push edi
push ebp
mov esi, dword[esp+ 20]
xor ebp, ebp
xor ecx, ecx
xor ebx, ebx
mov bp, 2613
mov eax, esi
mov cl, 100
mov bx, 1483
xor edx, edx
div ecx
xor edx, edx
mul ebx
add ebp, eax
mov eax, esi
mov cx, 400
mov bx, 2225
xor edx, edx
div ecx
xor edx, edx
mul ebx
sub ebp, eax
mov edi, ebp
xor ecx, ecx
mov eax, ebp
mov cl, 25
mov bx, 319
xor edx, edx
div ecx
xor edx, edx
mul ebx
mov ebp, eax
mov eax, esi
mov cl, 19
xor edx, edx
div ecx
mov eax, edx
xor edx, edx
mov dx, 3510
mul edx
add ebp, eax
mov eax, ebp
mov bx, 330
xor edx, edx
div ebx
mov cl, 29
xor edx, edx
div ecx
mov ebp, edx
sub edi, ebp
mov eax, esi
mov cl, 5
mul ecx
mov cl, 4
xor edx, edx
div ecx
add eax, edi
mov cl, 7
xor edx, edx
div ecx
xor eax, eax
mov al, 148
sub eax, edx
sub eax, ebp
mov cl, 31
xor edx, edx
div ecx
inc edx
mov ah, dl
pop ebp
pop edi
pop esi
pop ebx
ret
align 4
_main:
pushad
mov esi, 2023
.1: inc esi
push esi
call Easter
add esp, 4
xor edx, edx
mov dl, ah
mov ah, 0
push esi
push eax
push edx
push II02dII02dIIuIn
call _printf
add esp, 16
.2: cmp esi, 2030
jbe .1
popad
xor eax, eax
ret
If the origin file is in easter.asm, it would be compiled used the
lines
Nasmw -fobj easter.asm
bcc32 easter.obj
where bcc32 is the Borland C compiler, all the program, in .exe, that
would contain printf function here it would be 54 kb.
The routine at the start, would have input integer in esp+0x4, and
return address in esp,
output in eax, al is the number of the month, ah is the number of the
day.
This is the disasm of that:
00000800 53 push ebx
00000801 56 push esi
00000802 57 push edi
00000803 55 push ebp
00000804 8B742414 mov esi,[esp+0x14]
00000808 31ED xor ebp,ebp
0000080A 31C9 xor ecx,ecx
0000080C 31DB xor ebx,ebx
0000080E 66BD350A mov bp,0xa35
00000812 89F0 mov eax,esi
00000814 B164 mov cl,0x64
00000816 66BBCB05 mov bx,0x5cb
0000081A 31D2 xor edx,edx
0000081C F7F1 div ecx
0000081E 31D2 xor edx,edx
00000820 F7E3 mul ebx
00000822 01C5 add ebp,eax
00000824 89F0 mov eax,esi
00000826 66B99001 mov cx,0x190
0000082A 66BBB108 mov bx,0x8b1
0000082E 31D2 xor edx,edx
00000830 F7F1 div ecx
00000832 31D2 xor edx,edx
00000834 F7E3 mul ebx
00000836 29C5 sub ebp,eax
00000838 89EF mov edi,ebp
0000083A 31C9 xor ecx,ecx
0000083C 89E8 mov eax,ebp
0000083E B119 mov cl,0x19
00000840 66BB3F01 mov bx,0x13f
00000844 31D2 xor edx,edx
00000846 F7F1 div ecx
00000848 31D2 xor edx,edx
0000084A F7E3 mul ebx
0000084C 89C5 mov ebp,eax
0000084E 89F0 mov eax,esi
00000850 B113 mov cl,0x13
00000852 31D2 xor edx,edx
00000854 F7F1 div ecx
00000856 89D0 mov eax,edx
00000858 31D2 xor edx,edx
0000085A 66BAB60D mov dx,0xdb6
0000085E F7E2 mul edx
00000860 01C5 add ebp,eax
00000862 89E8 mov eax,ebp
00000864 66BB4A01 mov bx,0x14a
00000868 31D2 xor edx,edx
0000086A F7F3 div ebx
0000086C B11D mov cl,0x1d
0000086E 31D2 xor edx,edx
00000870 F7F1 div ecx
00000872 89D5 mov ebp,edx
00000874 29EF sub edi,ebp
00000876 89F0 mov eax,esi
00000878 B105 mov cl,0x5
0000087A F7E1 mul ecx
0000087C B104 mov cl,0x4
0000087E 31D2 xor edx,edx
00000880 F7F1 div ecx
00000882 01F8 add eax,edi
00000884 B107 mov cl,0x7
00000886 31D2 xor edx,edx
00000888 F7F1 div ecx
0000088A 31C0 xor eax,eax
0000088C B094 mov al,0x94
0000088E 29D0 sub eax,edx
00000890 29E8 sub eax,ebp
00000892 B11F mov cl,0x1f
00000894 31D2 xor edx,edx
00000896 F7F1 div ecx
00000898 42 inc edx
00000899 88D4 mov ah,dl
0000089B 5D pop ebp
0000089C 5F pop edi
0000089D 5E pop esi
0000089E 5B pop ebx
0000089F C3 ret
000008A0
9F+1 is 160 bytes
the result for input date from 2024 to 2031
31-03-2024
20-04-2025
05-04-2026
28-03-2027
16-04-2028
01-04-2029
21-04-2030
13-04-2031
I don't know if the algo is precise enought for calculate Easter date
for what range of years,but in range 1800..3000 it would be ok.
It is easy some date could return wrong, because for me, moon phases
are difficult to find 100% precise with a little algo.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Tue, 15 Apr 2025 06:47:13 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

Easter in 120 bytes

[snip my hexdump of 8086 code]

[snip your 386 code]

9F+1 is 160 bytes

[]

Thanks for giving this a go.

I've incorporated the Easter algo into my Csr Cal prog:

It now shows Today's date on a cyan background, Easter Sunday on a purple
one.
(my ref: cale1a)

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


Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/Pgn for a Century change
Home to return to current Year/Month
Esc to Exit
--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Tue, 15 Apr 2025 10:46:03 +0100, "Kerr-Mudd, John" wrote:

On Tue, 15 Apr 2025 06:47:13 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

Easter in 120 bytes

[snip my hexdump of 8086 code]

[snip your 386 code]

9F+1 is 160 bytes

[]

Thanks for giving this a go.

I've incorporated the Easter algo into my Csr Cal prog:

It now shows Today's date on a cyan background, Easter Sunday on a purple >one.
(my ref: cale1a)

B7B88EC3B42ACD2188F34B89CDB42ACD2139CD7508FECE38DE750288D753B800 >06B71EB93100BA4F0ACD10BEA402BF4602B107A447A447A447AFE360E2F5B700 >01DE01DE01DEBF1A01EBE8FEC380FB0B760DB30045B80F2739C57603B30B95B7 >00EBAA83C564EBED83ED64EB1B2C4674934874E04874EC2C0474D02C03740879 >E7FECB79DAB30B4DB82E0639C573D0B300EBCBCD1686C4984875D2C3E88B00BF >E60255529398B3003A06DD0275048A1EDE02881EDF022C0177034D040C88C1B8 >6A1DD1E883D602E2F9B107509699F7F15828D101D201D201D201D7D1E8589975 >04A240374014A83D21E31C05D5B4038F8750380CE3E3A06DF02750380CE5EFE >CA789050D40A08E47502B410E88800AFAFB60058E2D8B10783C768EBD1286329 >204D2E4A2E2032303235555789E8B164F6F15098999789EE95B113F6F191F6E5 >95B9020089F889FAD3EA29D75789F2D3EA01D641F6F19829C78D430FB11EF6F1 >3D061C10E15829C689F0F7D883C00739C87CF9B1032C28770349041F880EDD02 >A2DE02585F5D88E208E4750288E250E803005888E0D40AE8000086E03430AA26 >083547C34D6F6E54756557656454687246726953617453756E4A616E4665624D >61724170724D61794A756E4A756C4175675365704F63744E6F76446563000000

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/Pgn for a Century change
Home to return to current Year/Month
Esc to Exit

it could be some bugs... for example for date 3029 in my opinion see
some site of moon phases, the date of Easter of the "386 function" can
be wrong. could be not 22/3/3029
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Wed, 16 Apr 2025 11:40:07 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Tue, 15 Apr 2025 10:46:03 +0100, "Kerr-Mudd, John" wrote:

On Tue, 15 Apr 2025 06:47:13 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

Easter in 120 bytes

[snip my hexdump of 8086 code]

[snip your 386 code]

9F+1 is 160 bytes

[]

Thanks for giving this a go.

I've incorporated the Easter algo into my Csr Cal prog:

It now shows Today's date on a cyan background, Easter Sunday on a purple >one.
(my ref: cale1a)

B7B88EC3B42ACD2188F34B89CDB42ACD2139CD7508FECE38DE750288D753B800 >06B71EB93100BA4F0ACD10BEA402BF4602B107A447A447A447AFE360E2F5B700 >01DE01DE01DEBF1A01EBE8FEC380FB0B760DB30045B80F2739C57603B30B95B7 >00EBAA83C564EBED83ED64EB1B2C4674934874E04874EC2C0474D02C03740879 >E7FECB79DAB30B4DB82E0639C573D0B300EBCBCD1686C4984875D2C3E88B00BF >E60255529398B3003A06DD0275048A1EDE02881EDF022C0177034D040C88C1B8 >6A1DD1E883D602E2F9B107509699F7F15828D101D201D201D201D7D1E8589975 >04A240374014A83D21E31C05D5B4038F8750380CE3E3A06DF02750380CE5EFE >CA789050D40A08E47502B410E88800AFAFB60058E2D8B10783C768EBD1286329 >204D2E4A2E2032303235555789E8B164F6F15098999789EE95B113F6F191F6E5 >95B9020089F889FAD3EA29D75789F2D3EA01D641F6F19829C78D430FB11EF6F1 >3D061C10E15829C689F0F7D883C00739C87CF9B1032C28770349041F880EDD02 >A2DE02585F5D88E208E4750288E250E803005888E0D40AE8000086E03430AA26 >083547C34D6F6E54756557656454687246726953617453756E4A616E4665624D >61724170724D61794A756E4A756C4175675365704F63744E6F76446563000000

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/Pgn for a Century change
Home to return to current Year/Month
Esc to Exit

it could be some bugs... for example for date 3029 in my opinion see
some site of moon phases, the date of Easter of the "386 function" can
be wrong. could be not 22/3/3029

Thanks, my original prog (OK, using another programmer's algorithm) also
shows Easter 3029 as that.

Hmm. Seems some other competition entries give the same.

https://www.hugi.scene.org/compo/compoold.htm#compo20


from hc20.txt

<quote>
dddd has a value between 1582 and 4100 (but not including). If
</quote>

so it should have passed the test.

And

https://www.had2know.org/society/easter-date-calculator-tables.html
(online calculator)
also gives 22 March.



Not that I'll be around for that.
--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Wed, 16 Apr 2025 21:18:52 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Wed, 16 Apr 2025 11:40:07 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Tue, 15 Apr 2025 10:46:03 +0100, "Kerr-Mudd, John" wrote:

[]

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

I've incorporated the Easter algo into my Csr Cal prog:

It now shows Today's date on a cyan background, Easter Sunday on a purple >one.
(my ref: cale1a)

[]

6A1DD1E883D602E2F9B107509699F7F15828D101D201D201D201D7D1E8589975 >04A240374014A83D21E31C05D5B4038F8750380CE3E3A06DF02750380CE5EFE

Oops! Missing digit. I must look into my hexdump code!

CA789050D40A08E47502B410E88800AFAFB60058E2D8B10783C768EBD1286329

[]

Anyhow, Now more compact (and dropped the (c))

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

Today is also Easter Sunday, the hilite combines so it's shown as yellow on white.

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/Pgn for a Century change
Home to return to current Year/Month
Esc to Exit

--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Sun, 20 Apr 2025 17:49:53 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Wed, 16 Apr 2025 21:18:52 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Wed, 16 Apr 2025 11:40:07 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Tue, 15 Apr 2025 10:46:03 +0100, "Kerr-Mudd, John" wrote:

[]

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

I've incorporated the Easter algo into my Csr Cal prog:

It now shows Today's date on a cyan background, Easter Sunday on a purple
one.

[]

04A240374014A83D21E31C05D5B4038F8750380CE3E3A06DF02750380CE5EFE

Oops! Missing digit. I must look into my hexdump code!

Sorted, was using cl as a non-zero, but it /is/ zero at one point!
[]

[]

Anyhow, Now more compact (and dropped the (c))

[]
Embarrassingly wrong for Jan Feb; code deleted

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/Pgn for a Century change
Home to return to current Year/Month
Esc to Exit

(my ref: cale2b7)

Corrected:

B7B88EC3B42ACD21 88F389CDB42ACD21 39CD750438DE7401 9988D753B80006B7 1EB93100BA4F0ACD 10BE9702BF4602B1 07A447A447A447AF E35FE2F5B7004B01 DE01DE01DE43BF1A 01EBE64380FB0C76 0DB30145B80F2739 C57603B30C95EBAC 83C564EBEF83ED64 EB1B2C4674964874 E24874EC2C0474D3 2C03740879E7FECB 75DCB30C4DB82E06 39C573D2B301EBCD CD1686C4984875D2 C3E88700BFD1023A 1D75038A6DFF886D 01932C029192770D 80C10C4EBAFDFF24 0375024E42B86A1D D1E883D602E2F9B1 07965299F7F128D1 01D201D201D2BFE6 0201D75A31C0D1EE 74019983D21E5B40 38F8750380CE3E3A 06D202750380CE5E FECA789450D40A08 E47502B410E88200 AFAFB60058E2D8B1 0783C768EBD12863 29204D2E4A2E2032 303235555789E8B1 64F6F150989789EE 95B113F6F191F6E5 95B9020089F889FA D3EA29D789F2D3EA 01D641F6F19829C5 8D430FB11EF6F13D 061C10E129FE89F0 F7D883C00739C87C F9B4042C287704FE CC041FA3D002585F 5D88E208E4750288 E250E803005888E0 D40AE8000086E034 30AA26083547C34D 6F6E547565576564 5468724672695361 7453756E4A616E46 65624D6172417072 4D61794A756E4A75 6C4175675365704F 63744E6F76446563
--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Wed, 23 Apr 2025 11:39:19 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Sun, 20 Apr 2025 17:49:53 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Wed, 16 Apr 2025 21:18:52 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Wed, 16 Apr 2025 11:40:07 +0200
Rosario19 <Ros@invalid.invalid> wrote:

On Tue, 15 Apr 2025 10:46:03 +0100, "Kerr-Mudd, John" wrote:

[]

On Sun, 23 Mar 2025 07:16:05 +0000, "Kerr-Mudd, John" wrote:

I've incorporated the Easter algo into my Csr Cal prog:

It now shows Today's date on a cyan background, Easter Sunday on a purple
one.

[]

04A240374014A83D21E31C05D5B4038F8750380CE3E3A06DF02750380CE5EFE

Oops! Missing digit. I must look into my hexdump code!

Sorted, was using cl as a non-zero, but it /is/ zero at one point!
[]

Now using dl (a constant) as the nz toggle value

Hex (En/Decoder)

hex -d 2 <hex.com

A083 003C 6874 7731 EDB4 3FB5 3CBA DF01 CD21 91E3 0389 D6BF C33F 57A0 8300
3C64 753C 8A36 8500 80EE 3175 02B2 EFAC 43D4 1086 E027 04F0 1440 AA30 D775
F420 D375 06B8 0D0A ABEB 0784 F375 03B0 20AA E2DD 5AB3 0189 F929 D1B4 40CD
214B EBAB AC3C 3072 1709 ED74 1288 C695 244F D437 30CF 75F5 88F4 D510 AA31
C095 E2E2 EBD2 B409 BA89 01CD 21C3 0D0A 0A55 7361 6765 2069 733A 0D0A 6865
7820 2D64 205B 7370 5D3C 666E 2E63 6F6D 0D0A 2073 703D 7B30 2C31 2C32 2C34
2C38 2C40 7D0D 0A6F 720D 0A68 6578 202D 723C 666E 2E68 6578 3E66 6E2E 636F
6D0D 0A24 4750 4C20 4D4A 3230 3234




(Cursor driven Calendar)

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/PgDn for a Century change
Home to return to current Year/Month
Esc to Exit

(my ref: cale2b7)

Corrected:

B7B88EC3B42ACD21 88F389CDB42ACD21 39CD750438DE7401 9988D753B80006B7 1EB93100BA4F0ACD 10BE9702BF4602B1 07A447A447A447AF E35FE2F5B7004B01 DE01DE01DE43BF1A 01EBE64380FB0C76 0DB30145B80F2739 C57603B30C95EBAC 83C564EBEF83ED64 EB1B2C4674964874 E24874EC2C0474D3 2C03740879E7FECB 75DCB30C4DB82E06 39C573D2B301EBCD CD1686C4984875D2 C3E88700BFD1023A 1D75038A6DFF886D 01932C029192770D 80C10C4EBAFDFF24 0375024E42B86A1D D1E883D602E2F9B1 07965299F7F128D1 01D201D201D2BFE6 0201D75A31C0D1EE 74019983D21E5B40 38F8750380CE3E3A 06D202750380CE5E FECA789450D40A08 E47502B410E88200 AFAFB60058E2D8B1 0783C768EBD12863 29204D2E4A2E2032 303235555789E8B1 64F6F150989789EE 95B113F6F191F6E5 95B9020089F889FA D3EA29D789F2D3EA 01D641F6F19829C5 8D430FB11EF6F13D 061C10E129FE89F0 F7D883C00739C87C F9B4042C287704FE CC041FA3D002585F 5D88E208E4750288 E250E803005888E0 D40AE8000086E034 30AA26083547C34D 6F6E547565576564 5468724672695361 7453756E4A616E46 65624D6172417072 4D61794A756E4A75 6C4175675365704F 63744E6F76446563

--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Thu, 24 Apr 2025 10:34:36 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

(Cursor driven Calendar)

Now with full set of British Holidays - 8, count 'em! - 8!
(with current day highlighted).

New Years Day
Good Friday
Easter Monday
May Day
Late May
August
Christmas Day
Boxing Day

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/PgDn for a Century change
Home to return to current Year/Month
Esc to Exit

(my ref: cale3a6)

576 (0x240) bytes

B7B88EC3B42ACD2188F389CDB42ACD2139CD750438DE74019988D753B80006B7 1EB93100BA4F0ACD10BE0703BF4602B107A447A447A447AFE35FE2F5B7004B01 DE01DE01DE43BF1A01EBE64380FB0C760DB30145B80F2739C57603B30C95EBAC 83C564EBEF83ED64EB1B2C4674964874E24874EC2C0474D32C03740879E7FECB 75DCB30C4DB82E0639C573D2B301EBCDCD1686C4984875D2C3E8E20089D82C02 9192770C80C10C4EB21C240375024E42B86A1DD1E883D602E2F9B107965299F7 F189D028D101D201D201D2BFE60201D757BF4403C70500004B74284380FB0C74 3108D2740288CA4280FB08740980FB0572327745881580FA03770380C20780C2 15EB33B2012C0574044875034A42428815C3B21948750688154242EB0448E8E6 FF42EB128B16420338F3750288158B16400338F375038855015F5A31C0D1EE74 049983D21E5BBE44034038F8750380CE3E3A0474053A4401750380CE5EFECA79 03E92CFF50D40A08E47502B410E87E00AFAFB60058E2D2B10783C768EBCB5557 89E8B164F6F150989789EE95B113F6F191F6E595B9020089F889FAD3EA29D789 F2D3EA01D641F6F19829C58D430FB11EF6F13D061C10E129FE89F0F7D883C007 39C87CF9BF4003B4042C242C0479032DE101408905AF30DD75F1585F5D88E208 E4750288E250E803005888E0D40AE8000086E03430AA26083547C3286329204D 2E4A2E323032354D6F6E54756557656454687246726953617453756E4A616E46 65624D61724170724D61794A756E4A756C4175675365704F63744E6F76446563
--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Mon, 5 May 2025 15:14:35 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Thu, 24 Apr 2025 10:34:36 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

(Cursor driven Calendar)

Now with full set of British Holidays - 8, count 'em! - 8!
(with current day highlighted).

New Years Day
Good Friday
Easter Monday
May Day
Late May
August
Christmas Day
Boxing Day

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/PgDn for a Century change
Home to return to current Year/Month
Esc to Exit

(my ref: cale3a6)

576 (0x240) bytes

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

----------C2--------

2E4A2E323032354D6F6E54756557656454687246726953617453756E4A616E46 65624D61724170724D61794A756E4A756C4175675365704F63744E6F76446563

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

Corrected an error for February length when leap centuries. I blame the
tester.

(offset 1E4 should be C2, not E2)
--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: alt.lang.asm

On Mon, 5 May 2025 17:50:03 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Mon, 5 May 2025 15:14:35 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

On Thu, 24 Apr 2025 10:34:36 +0100
"Kerr-Mudd, John" <admin@127.0.0.1> wrote:

(Cursor driven Calendar)

Now with full set of British Holidays - 8, count 'em! - 8!
(with current day highlighted).

New Years Day
Good Friday
Easter Monday
May Day
Late May
August
Christmas Day
Boxing Day

Csr L/R for Month up/dn
Csr U/D for Year up/dn
Pgup/PgDn for a Century change
Home to return to current Year/Month
Esc to Exit

(my ref: cale3a6)

Bother, 'Skip weekend' rtn for Jan 1st needs to jmp back, can't fall into
it.

584 bytes

B7B88EC3B42ACD21 88F389CDB42ACD21 39CD750438DE7401 9988D753B80006B7 1EB93100BA4F0ACD 10BE0C03BF4602B1 07A447A447A447AF E35FE2F5B7004B01 DE01DE01DE43BF1A 01EBE64380FB0C76 0DB30145B80F2739 C57603B30C95EBAC 83C564EBEF83ED64 EB1B2C4674964874 E24874EC2C0474D3 2C03740879E7FECB 75DCB30C4DB82E06 39C573D2B301EBCD CD1686C4984875D2 C3E8E70089D82C02 9192770C80C10C4E B21C240375024E42 B86A1DD1E883D602 E2F9B107965299F7 F189D028D101D201 D201D2BFE60201D7 57BF4C03C7050000 4B74284380FB0C74 3608D2740288CA42 80FB08740980FB05 7237774A881580FA 03770380C20780C2 15EB38B2012C05E8 0200EB3274044875 034A42428815C3B2 1948750688154242 EB0448E8E6FF42EB 128B164A0338F375 0288158B16480338 F375038855015F5A 31C0D1EE74049983 D21E5BBE4C034038 F8750380CE3E3A04 74053A4401750380 CE5EFECA7903E927 FF50D40A08E47502 B410E87E00AFAFB6 0058E2D2B10783C7 68EBCB555789E8B1 64F6F150989789EE 95B113F6F191F6E5 95B9020089F889FA D3EA29D789F2D3EA 01D641F6F19829C5 8D430FB11EF6F13D 061C10E129FE89F0 F7D883C00739C87C F9BF4803B4042C24 2C0479032DE10140 8905AF30DD75F158 5F5D88E208E47502 88C250E803005888 E0D40AE8000086E0 3430AA26083547C3 286329204D2E4A2E 323032354D6F6E54 7565576564546872 4672695361745375 6E4A616E4665624D 61724170724D6179 4A756E4A756C4175 675365704F63744E 6F76446563580D0A

--
Bah, and indeed Humbug.

--
Bah, and indeed Humbug.
--- Synchronet 3.21d-Linux NewsLink 1.2