mirror of
https://github.com/fumiama/c64-snake.git
synced 2026-06-05 00:32:39 +08:00
add score(初步)
This commit is contained in:
@@ -2,11 +2,6 @@
|
||||
.require "platform/c64header.oph"
|
||||
.require "platform/c64kernal.oph"
|
||||
|
||||
.data
|
||||
.org $C000
|
||||
.space _na 1 ; a的临时存放处
|
||||
|
||||
.text
|
||||
main:
|
||||
* jsr getin
|
||||
beq skip
|
||||
@@ -20,17 +15,4 @@ skip:
|
||||
end:
|
||||
rts
|
||||
|
||||
printbyte:
|
||||
sta _na
|
||||
txa
|
||||
pha
|
||||
ldx #8 ; 打印8bit
|
||||
* lda #$30 ; a = '0'
|
||||
asl _na ; 左移一位,溢出到c
|
||||
adc #0 ; a = a + c + 0
|
||||
jsr chrout ; putchar(a)
|
||||
dex ; x--
|
||||
bne - ; if(x != 0) goto 上个星号
|
||||
pla
|
||||
tax
|
||||
rts
|
||||
.require "printbyte.asm"
|
||||
Reference in New Issue
Block a user