Search found 7 matches

by krt17
Thu May 17, 2018 7:07 pm
Forum: Brand new software!
Topic: New Game - Hibernated 1
Replies: 31
Views: 4070

Re: New Game - Hibernated 1

Take Io with you, it will be useful.
by krt17
Sun Dec 10, 2017 6:46 pm
Forum: Brand new software!
Topic: Q*Box, by ThePope (3D game with AGD)
Replies: 16
Views: 2485

Re: Q*Box, by ThePope (3D game with AGD)

Floating bus vs snow. Bang!
Emulators have beaten real hardware again.
by krt17
Sun Nov 26, 2017 12:51 pm
Forum: Programming
Topic: Missed Interrupts with DI+IM2 in assembly
Replies: 12
Views: 1968

Re: Missed Interrupts with DI+IM2 in assembly

Method 2 The basic idea is to store the checksums for all the blocks in which the reading through the stack is used. The interrupt routine considers the block checksum (add as a rule) and restores the value on the stack. Requires a little more memory (for checksums) and spends more tacts (~1400) in ...
by krt17
Sun Nov 26, 2017 9:38 am
Forum: Programming
Topic: Missed Interrupts with DI+IM2 in assembly
Replies: 12
Views: 1968

Re: Missed Interrupts with DI+IM2 in assembly

method 1 ;sprite out routine ld c,(hl) inc hl ld b,(hl) inc hl ld sp,hl .... pop bc .... ;------ int ld (.memhl), hl pop hl ld (.memret), hl ld (.memsp), sp push bc ld sp, intSp .... ;player timer etc .memhl equ $+1 ld hl, 0 .memsp equ $+1 ld sp, 0 ei .memret equ $+1 jp 0
by krt17
Sun Nov 26, 2017 7:47 am
Forum: Programming
Topic: Missed Interrupts with DI+IM2 in assembly
Replies: 12
Views: 1968

Re: Missed Interrupts with DI+IM2 in assembly

There are several techniques without disabling interrupts to work with data on the stack. Their application depends on the specific situation, if you give an example of how the stack can be used more precisely.
by krt17
Wed Nov 22, 2017 7:07 pm
Forum: Programming
Topic: Machine code challenge
Replies: 12
Views: 1930

Re: Machine code challenge

and ofc jp p ret equ ret m jr
by krt17
Wed Nov 22, 2017 6:57 pm
Forum: Programming
Topic: Machine code challenge
Replies: 12
Views: 1930

Re: Machine code challenge

from Russia with love
23

Code: Select all

frame
	ld	hl, 0x5aff
	xor	a
	ld	a, 0x17
.l2
	ld	bc, 0x1e49
	ld	(hl), c
	dec	hl
.l1
	jr	nz, $+3
	ld	(hl), c
	dec	hl
	djnz	.l1
	ld	(hl), c
	dec	hl
	dec	a
	ret	m
	jr	.l2