From 90d98208e603f988c3a60ef0307a3e1ab11f30a7 Mon Sep 17 00:00:00 2001
From: fumiama <s862105088@gmail.com>
Date: Thu, 1 Apr 2021 23:28:51 +0800
Subject: [PATCH] mod

---
 main.asm    |   5 +++--
 print16.asm |  37 +++++++++++++++++++------------------
 snake.prg   | Bin 278 -> 299 bytes
 3 files changed, 22 insertions(+), 20 deletions(-)

diff --git a/main.asm b/main.asm
index 440c64d..d4d7593 100644
--- a/main.asm
+++ b/main.asm
@@ -30,9 +30,10 @@ main:
 .macro init
 	lda #147	 ;清屏
 	jsr chrout
-	lda #$a8
+	lda #$ac
 	sta s
-	;sta s + 1
+	lda #0
+	sta s + 1
 	jsr printscore
 .macend
 
diff --git a/print16.asm b/print16.asm
index 86520a5..1ea1a31 100644
--- a/print16.asm
+++ b/print16.asm
@@ -6,6 +6,7 @@ print16:
 .scope
 .data zp
 .space _num 6
+.space _num_dec 6
 .text
 	pha
 	txa
@@ -15,12 +16,13 @@ print16:
     ldx #6
 *   dex
     sta _num, x
+    sta _num_dec, x
     bne -
 
 	`splitbyte s, 4
 	`splitbyte s + 1, 2
     `carry
-	`print _num
+	`print _num_dec
 
 	pla
 	tax
@@ -29,23 +31,22 @@ print16:
 
 mod10:
     lda _num, y
-    ldx #$ff
-    clc
-*   inx
-    ;jsr printbyte
-    sbc #9
-    ;jsr printbyte
-    ;dey
-    ;rts
-    bcc -
-    clc
-    adc #$3a
-    sta _num, y
-    txa
+    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
+    sta _num_dec, y
+    jsr printbyte
     dey
-    adc _num, y
-    sta _num, y
-    rts
+    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
 .scend
 
 .macro splitbyte
@@ -70,7 +71,7 @@ mod10:
 
     ldy #4
 *   jsr mod10
-    ; dey
+    dey
     bne -
     lda #$30
     clc
diff --git a/snake.prg b/snake.prg
index 6e1813b98f73e3babc0354e8554806f862c37db3..50e33bf88b17668d9c6510c7b82b203739f58cba 100644
GIT binary patch
delta 171
zcmbQnw3=x`fXbRymX!>xtO`*a2`iT^;#auz|I~$F9y2^v)-K>skmSr*k)hB$u|SGt
zD$j+V6MIxku5xr-__fkNB9*O`En@{pA<qH^h{B9j83{Yt7*28-NMx$c<Y7?w%h9ot
zv66=Y!am{iha*!T!cFjK73%U>#Ie$VO(>HAZ0VPk3P2iUMyqg($O49q!XMax0w*qf
GO8@{;SwsK;

delta 172
zcmZ3@G>vIOfX#|l7KJd5gq6z{@he>Vf9k?7j~N~-D;IDmuyAIq$WW-~fQcsrJNpN@
zGI(@(tYlckc4{iyh2Ik=sivOexbS<WfkY}>D_h12kY2V03=q8;t1=RHvN0_BFY)3f
z=Y-!9nN~B|7`i$t*%*Lyf=4S)m&YQGl?H4)nG9f?zpPXM(jZ-}ye)hS7&h{LU;_%A
IxbQ6j06d9E_5c6?