From 6585c635d03dea7ab347e9001288f2b46f812efe Mon Sep 17 00:00:00 2001
From: fumiama <s862105088@gmail.com>
Date: Sat, 3 Apr 2021 13:41:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=BF=AB=E4=BA=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 print16.asm |  30 ++++++++++++++++--------------
 snake.prg   | Bin 490 -> 505 bytes
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/print16.asm b/print16.asm
index 8be183d..5cb84e6 100644
--- a/print16.asm
+++ b/print16.asm
@@ -14,7 +14,7 @@ print16:
 	
     lda #0
     ldx #6
-*   sta _num_dec - 1, x
+*   sta _num_dec, x
     dex
     bne -
 
@@ -95,6 +95,7 @@ mod_1:      ; 低字节低4位的值相当于个位加6，十位加9，百位加
     bcc _skip
     pha
     lda #$10                ; 进位相当于100
+    clc
     adc _num_dec + _1 - 1
     sta _num_dec + _1 - 1
     pla
@@ -129,39 +130,40 @@ _skip:
     jsr mod_2
     jsr mod_1   ; 此时结果中有些位可能大于10，需要进行进位处理
     jsr chrin
-    ldx #6
+    ldx #5
 _loop:
-    lda _num_dec - 1, x
     ldy #0      ; y记录进位数
+    lda _num_dec, x
     cmp #10
     bcc _skip   ; 小于10不进位
+    jsr printbyte
     pha
     and #$f0
-    ror
-    ror
-    ror
-    ror
+    lsr
+    lsr
+    lsr
+    lsr
     tay
     pla
     and #$0f
-    adc _num_dec - 1, x
-    sta _num_dec - 1, x
+    jsr printbyte
+    adc _num_dec, x
+    sta _num_dec, x
+    jsr chrin
     tya
-    dex
     adc _num_dec - 1, x
     sta _num_dec - 1, x
-    inx
+    jsr chrin
 _skip:
     dex
     bne _loop
 
     cld         ; 退出bcd模式
-    lda #$30    ; 转化为可显示字符
     ldx #5
 _up:
-    adc _num_dec - 1, x
+    lda _num_dec - 1, x
+    ora #$30    ; 转化为可显示字符
     sta _num_dec - 1, x
-    jsr chrin
     dex
     bne _up
 
diff --git a/snake.prg b/snake.prg
index a51f2155c8439ba5dcb37166432acff0f8254474..caabdeb15ad5c7739bf1ed7e41f84167a24fd277 100644
GIT binary patch
delta 267
zcmaFG{F8Y?F5~lwd2)<g6MNNzcsUj1I2F7(6}mVT&i`M;x`1IT*GaAk3JNDVJv2Xf
z0l|t4O@1J+lxr#%P{oW=&Z!`kr!HK*v50jmC#S(w&Qlk@XRPp;;jxly0fWNxiT_pV
zIXzYiNTl+%@@BO1tz-nUCO|}ZT6r>Bc~4!qnXrug0%O8THi=X|s1#H&E4t#9OcJR)
xP&M4G+!?Jrr!E{%SjL83J11DX0@!+pWh+@EQn{h}xmvk0TDgJxC+}i3006&{TX+Bf

delta 253
zcmey#{EB%(F5``fd2)=L6MNOY**F!%ITf5Z73w$@&i`M;wv}@M!%40QVjh|wvVdSk
zh9-Y0=Ty!ar$FS3Qy1>vSZT0`6~qB5KXu_-#tM%a9xJ&PFeu!Z%*Lov&*8CBAeFb3
zH=~trC8I<t?*y;_Pb*JGEAOcbw-c7JUtmmF$tID?2a$m)WkplEl1U<!2cm+zl{=%A
n=hTH$3Cq~9>g7bzD*>`+C5uEVH$*d6D_2G<H&FBBlZ*xcLEKn9