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Remove line number

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This commit is contained in:
Alexander Noack
2020-04-04 21:54:54 +02:00
parent b6fb5e3dfd
commit 8dd85c7e2a
3 changed files with 29 additions and 29 deletions
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26
src/example/char_in.asm
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@@ -1,13 +1,13 @@
10;Queries the keyboard for input and prints the resulting keycode
20 ORG 100H ;Tell the assembler to start at addr 0x100
30START: LD HL,GREET ;Load the start addr. of the banner text
40 LD B,15H ;The length if the string
50 LD DE,0H ;Start output in the top left corner
60 CALL 84CDH ;Call str_out
70LOOP: CALL 8881H ;Call the char_in
80 LD DE,16H ;Position cursor in row 0, col 22
90 CALL 8468H ;Print the char
100 JR LOOP ;Retrun to the loop
110 RET ;End the program
120GREET: DB 'Test keyboard input: '
130 END ;Mark the end of code for the assembler
;Queries the keyboard for input and prints the resulting keycode
ORG 100H ;Tell the assembler to start at addr 0x100
START: LD HL,GREET ;Load the start addr. of the banner text
LD B,15H ;The length if the string
LD DE,0H ;Start output in the top left corner
CALL 84CDH ;Call str_out
LOOP: CALL 8881H ;Call the char_in
LD DE,16H ;Position cursor in row 0, col 22
CALL 8468H ;Print the char
JR LOOP ;Retrun to the loop
RET ;End the program
GREET: DB 'Test keyboard input: '
END ;Mark the end of code for the assembler

14
src/example/char_out.asm
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@@ -1,8 +1,8 @@
10;Outputs an "A" in the second column of the last row
20 ORG 100H ;Tell the assembler to start at addr. 0x100
30START: LD A,41H ;Load the letter "A" to register A
40 LD DE,301H ;Sets the row to 3 and the column to 1
50 CALL 8468H ;Calls the ```char_out``` function
60 RET ;Return
70 END ;Marks the end of the code for the assembler
;Outputs an "A" in the second column of the last row
ORG 100H ;Tell the assembler to start at addr. 0x100
START: LD A,41H ;Load the letter "A" to register A
LD DE,301H ;Sets the row to 3 and the column to 1
CALL 8468H ;Calls the ```char_out``` function
RET ;Return
END ;Marks the end of the code for the assembler

18
src/example/str_out.asm
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@@ -1,10 +1,10 @@
10;output a string into the top left of the screen
20 ORG 0100H ;Start at addr 0x100
30START: LD HL,DATA ;Load the start address of the string
40 LD B,0DH ;The length of the string (max 255 chars)
50 LD DE,0H ;Start in the top left corner (D=0-3 -> row; E=0-23 column)
60 CALL 84CDH ;Call the str_out function in ROM
70 RET ;Return from call
80DATA: DB 'HELLO, WORLD!'
90 END ;End marker for the assembler
;output a string into the top left of the screen
ORG 0100H ;Start at addr 0x100
START: LD HL,DATA ;Load the start address of the string
LD B,0DH ;The length of the string (max 255 chars)
LD DE,0H ;Start in the top left corner (D=0-3 -> row; E=0-23 column)
CALL 84CDH ;Call the str_out function in ROM
RET ;Return from call
DATA: DB 'HELLO, WORLD!'
END ;End marker for the assembler