From 78f9c020d5fc87047d052d23e6dd18ca59f429a8 Mon Sep 17 00:00:00 2001
From: fumiama <s862105088@gmail.com>
Date: Fri, 2 Apr 2021 00:42:25 +0800
Subject: [PATCH] =?UTF-8?q?=E6=98=8E=E5=A4=A9=E7=94=A8bcd=E5=AE=9E?=
 =?UTF-8?q?=E7=8E=B0?=
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Content-Type: text/plain; charset=UTF-8
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---
 main.asm    |   2 +-
 print16.asm |  59 ++++++++++++++++++++++++++++++++++------------------
 snake.prg   | Bin 299 -> 371 bytes
 3 files changed, 40 insertions(+), 21 deletions(-)

diff --git a/main.asm b/main.asm
index d4d7593..7db172c 100644
--- a/main.asm
+++ b/main.asm
@@ -30,7 +30,7 @@ main:
 .macro init
 	lda #147	 ;清屏
 	jsr chrout
-	lda #$ac
+	lda #$bd
 	sta s
 	lda #0
 	sta s + 1
diff --git a/print16.asm b/print16.asm
index 1ea1a31..5825978 100644
--- a/print16.asm
+++ b/print16.asm
@@ -29,26 +29,45 @@ print16:
 	pla
     rts
 
-mod10:
-    lda _num, y
-    cmp #10     ; 4位的数只有大于/小于10两种情况
-    bmi +       ; 小于等于10
-    adc #$25    ; 此时c=0
+_store:
+    adc _num_dec, y
     sta _num_dec, y
-    jsr printbyte
+    ;jsr printbyte
+    rts
+
+_store2:
+    adc _num_dec, y
+    sta _num_dec, y
+    ;jsr printbyte
     dey
     lda #1
-    adc _num_dec, y
     sta _num_dec, y
-    jsr printbyte
-    iny
-    jmp ++
-*   adc #$2f    ; 此时c=1
-    adc _num_dec, y
-    sta _num_dec, y
-*   rts
+    rts
+
+mod_4: `mod10 4, $26
+
+mod_3: `mod10 3, $2c
+
+mod_2: `mod10 2, $28
+
+mod_1: `mod10 1, $2a
 .scend
 
+.macro mod10
+    ldy #_1
+    lda _num, y
+    ;jsr printbyte
+    cmp #10
+    clc
+    bmi _s
+    adc #_2
+    jsr _store2
+    rts
+_s: adc #$30
+    jsr _store
+    rts
+.macend
+
 .macro splitbyte
 	lda _1
 	sta _num + _2
@@ -69,14 +88,14 @@ mod10:
     tya
     pha
 
-    ldy #4
-*   jsr mod10
-    dey
-    bne -
+    jsr mod_4
+    jsr mod_3
+    jsr mod_2
+    jsr mod_1
     lda #$30
     clc
-    adc _num
-    sta _num
+    adc _num_dec
+    sta _num_dec
     
     pla
     tay
diff --git a/snake.prg b/snake.prg
index 50e33bf88b17668d9c6510c7b82b203739f58cba..8b44b5d92f4e24c3ec168707aad173722010d98d 100644
GIT binary patch
delta 166
zcmZ3@^qFZw0OQ_?fijGV6Z72a72a|vFmozMaw_O^t~8KH<!R-~Sm80lV<pc528Be<
zj1?Ift1=QQc^GE$FhHq}m5d<H0+yX@3@5oH4A?T&6drISWEv>k<VaY+3>Vcw5@mvm
TY9NU+?i7L<p#>M7_*V}AKu0mp

delta 94
zcmey&w3=x`0OOj8fijGe6Z70W7qBQ?<><KZYo&oiDqAaC#tM%a9xHhkFepfJW~|7_
rSe22mla1jdmw`m4>P#L6g})pfD;X<!7$EEuK7Tke^&#BJu8evBE;k=#