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Miracle #03
16 июля 1999 |
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kodit Who's there? - Fast 42 print: fast how to print 42 characters in a row.
(C) Death Moroz
---------------
Rapid procedure for printing
42 characters per line
I would like to share some of my researches in the field of
O 42-x characters per line, all of which are
is that the memory created in March
additional font, procedures for their
create approximately as follows:
FONT EQU ADRES; ADDRESS THE BASIC FONT
FONT2 EQU 49152
FONT3 EQU FONT2 +4096
FONT4 EQU FONT3 +4096; ADDRESSES FUTURE FONTAINE
, Their sizes will be in 2
; Times the original
; PROCEDURE FOR THE ESTABLISHMENT OF FONT offset 6
; Bit from familiarity ORIGIN:
LD DE, FONT2
LD HL, FONT
LD BC, 2048
F_CR1 LD A, (HL)
RLCA
RLCA
PUSH AF
AND 3
LD (DE), A
INC DE
POP AF
AND 252
LD (DE), A
INC DE
INC HL
DEC BC
LD A, B
OR C
JR NZ, F_CR1
; PROCEDURE FOR THE ESTABLISHMENT OF FONT offset 4
; BITA From the beginning familiarity:
LD DE, FONT3
LD HL, FONT
LD BC, 2048
F_CR2 LD A, (HL)
RRCA
RRCA
RRCA
RRCA
PUSH AF
AND 15
LD (DE), A
INC DE
POP AF
AND 240
LD (DE), A
INC DE
INC HL
DEC BC
LD A, B
OR C
JR NZ, F_CR2
; PROCEDURE FOR THE ESTABLISHMENT OF FONT offset 6
; Bit from familiarity ORIGIN:
LD DE, FONT4
LD HL, FONT
LD BC, 2048
F_CR3 LD A, (HL)
RRCA
RRCA
PUSH AF
AND 63
LD (DE), A
INC DE
POP AF
AND 192
LD (DE), A
INC DE
INC HL
DEC BC
LD A, B
OR C
JR NZ, F_CR3
Here is an example output line fonts,
created in this way. At the entrance to the HL
address of the text, the screen should be cleared.
LD (SP_ +1), SP
BEGIN LD A, (HL)
CP # 0D; line terminator
JP Z, SP_
INC HL
EXX
EX AF, AF '
S_ADR LD DE, # 4000; which to dump
BITS LD A, 0, offset from the beginning familiarity
OR A
JR Z, BIT0
CP 6
JR Z, BIT6
CP 4
JR Z, BIT4
XOR A
LD BC, FONT4
JR S_OUT
BIT4 LD A, 2
LD BC, FONT3
JR S_OUT
BIT6 LD BC, FONT2
LD A, 4
S_OUT LD (BITS +1), A
EX AF, AF '
LD L, A
LD H, 0
ADD HL, HL
ADD HL, HL
ADD HL, HL
ADD HL, HL
ADD HL, BC
LD SP, HL
EX DE, HL
;
POP BC;
LD A, C;
OR (HL);
LD (HL), A; REPEAT
INC L; 4
LD (HL), B; TIMES
INC H;
POP BC;
LD (HL), B;
DEC L;
LD A, C;
OR (HL);
LD (HL), A;
INC H;
;
LD A, (S_ADR +1)
INC A
LD (S_ADR +1), A
EXX
JR BEGIN
BIT0 EX AF, AF '
LD L, A
LD H, 0
ADD HL, HL
ADD HL, HL
ADD HL, HL
LD BC, FONT
ADD HL, BC
LD SP, HL
EX DE, HL
;
POP BC;
LD (HL), C; REPEAT
INC H; 4
LD (HL), B; TIMES
INC H;
;
LD A, 6
LD (BITS +1), A
EXX
JP BEGIN
SP_ LD SP, 0
RET
Lastly, ladies primerchik protsedurki
setting attributes in the 42-character
line (without a single pop / push 'a ;)).:
LD BC, TEXT_ADR
LD DE, # 5800; ADDRESS ATTRIBUTE
LD A, 68; default color
LD (COLOR +1), A
A_S0 LD HL, A_TABL
A_S1 LD A, (BC)
INC BC
CP 1932
JR NC, A_K
CP 3; CODE END OF TEXT
RET Z
CP # 0D; CODE END OF LINE
JR Z, A_N
CP # 10; CODE CHANGE ATTRIBUTE
JR Z, A_C
;
A_K LD A, E
EX AF, AF '
LD A, E
ADD A, (HL)
LD E, A
COLOR LD A, 0
LD (DE), A
EX AF, AF '
LD E, A
INC HL
JR A_S1
A_C LD A, (BC)
LD (COLOR +1), A
INC BC
JR A_S1
A_N LD A, E
EX AF, AF '
LD A, E
ADD A, (HL)
LD E, A
LD A, (COLOR +1)
LD (DE), A
EX AF, AF '
LD E, A
LD HL, 32
ADD HL, DE
EX DE, HL
LD A, D
CP # 5B
JR C, A_S0
RET
A_TAB DB 0,0,1,2,3,3,4,5,6,6,7,8,9,9,10,11
DB 12,12,13,14,15,15,16,17,18,18,19
DB 20,21,21,22,23,24,24,25,26,27,27
DB 28,29,30,30,31,31
I take this opportunity to express their opinion on the
"assemblers we choose: for me personally
steepness of the assembly is determined not
speed of compilation, not the presence of the heap
all setups and overlays in the form of minerals
'Co, and the speed and convenience of the editor,
koim, in my opinion, is the XAS, because
only you can dial:
(Hl) .40
and get:
ld (hl), # 40
All the vaunted alasm flunked would you
lots of questions, and the newly-born storm
has such a paltry amount of free memory, that his whole frame-
Scrolling is reduced to nothing (well, that
though there is no Multicolor screen Savery;))
For the same XAS'a enough not to spoil a
Bank ...
And on the macro, multi,
tag lines for fast and
things I do "silent". In short, the guy who made it
enjoys, I understand. All who disagree, please contact the
Editor ...%)
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