如何用51匯編調(diào)用ASCLL字庫(kù)表？送黑幣

ID:1042355 · 發(fā)表于 2022-8-19 17:22

各位大俠，小弟最近在用51單片機(jī)匯編寫彩屏玩。研究過(guò)程中看到C語(yǔ)言能實(shí)現(xiàn)如下功能。如寫顯示OK時(shí)直接寫“OK”而不像匯編要去一個(gè)一個(gè)的調(diào)用

字庫(kù)表如下：

******************************************************************************************************/
#include "font.h"

/*****************************************************************************************************
數(shù)組名稱： const unsigned char ascii_1608[95][16]
數(shù)組定義：常用ASCII字符集
參數(shù)大小： 16*8
偏移參數(shù)： 16
******************************************************************************************************/
const unsigned char ascii_1608[95][16]={
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",0*/
{0x00,0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00,0x08,0x08,0x00,0x00},/*"!",1*/
{0x00,0x48,0x24,0x24,0x12,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*""",2*/
{0x00,0x00,0x00,0x48,0x48,0x48,0x7E,0x24,0x24,0x24,0x7E,0x24,0x24,0x24,0x00,0x00},/*"#",3*/
{0x00,0x00,0x10,0x3C,0x52,0x52,0x12,0x1C,0x30,0x50,0x50,0x52,0x52,0x3C,0x10,0x10},/*"$",4*/
{0x00,0x00,0x00,0x22,0x25,0x15,0x15,0x0D,0x2A,0x58,0x54,0x54,0x52,0x22,0x00,0x00},/*"%",5*/
{0x00,0x00,0x00,0x0C,0x12,0x12,0x12,0x0A,0x76,0x25,0x29,0x19,0x91,0x6E,0x00,0x00},/*"&",6*/
{0x00,0x06,0x04,0x04,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"'",7*/
{0x00,0x40,0x20,0x10,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x10,0x10,0x20,0x40,0x00},/*"(",8*/
{0x00,0x02,0x04,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x08,0x08,0x04,0x02,0x00},/*")",9*/
{0x00,0x00,0x00,0x00,0x08,0x08,0x6B,0x1C,0x1C,0x6B,0x08,0x08,0x00,0x00,0x00,0x00},/*"*",10*/
{0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x10,0xFE,0x10,0x10,0x10,0x00,0x00,0x00,0x00},/*"+",11*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x04,0x04,0x02},/*",",12*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"-",13*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x06,0x00,0x00},/*".",14*/
{0x00,0x00,0x40,0x20,0x20,0x20,0x10,0x10,0x08,0x08,0x08,0x04,0x04,0x02,0x02,0x00},/*"/",15*/
{0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00},/*"0",16*/
{0x00,0x00,0x00,0x10,0x1C,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00},/*"1",17*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x40,0x20,0x10,0x08,0x04,0x42,0x7E,0x00,0x00},/*"2",18*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x40,0x20,0x18,0x20,0x40,0x42,0x42,0x3C,0x00,0x00},/*"3",19*/
{0x00,0x00,0x00,0x20,0x30,0x30,0x28,0x24,0x24,0x22,0xFE,0x20,0x20,0xF8,0x00,0x00},/*"4",20*/
{0x00,0x00,0x00,0x7E,0x02,0x02,0x02,0x1E,0x22,0x40,0x40,0x42,0x22,0x1C,0x00,0x00},/*"5",21*/
{0x00,0x00,0x00,0x18,0x24,0x02,0x02,0x3A,0x46,0x42,0x42,0x42,0x44,0x38,0x00,0x00},/*"6",22*/
{0x00,0x00,0x00,0x7E,0x42,0x20,0x20,0x10,0x10,0x08,0x08,0x08,0x08,0x08,0x00,0x00},/*"7",23*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00},/*"8",24*/
{0x00,0x00,0x00,0x1C,0x22,0x42,0x42,0x42,0x62,0x5C,0x40,0x40,0x24,0x18,0x00,0x00},/*"9",25*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00},/*":",26*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x08,0x08,0x08},/*";",27*/
{0x00,0x00,0x00,0x40,0x20,0x10,0x08,0x04,0x02,0x04,0x08,0x10,0x20,0x40,0x00,0x00},/*"<",28*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00,0x00,0x00,0x00,0x00},/*"=",29*/
{0x00,0x00,0x00,0x02,0x04,0x08,0x10,0x20,0x40,0x20,0x10,0x08,0x04,0x02,0x00,0x00},/*">",30*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x46,0x20,0x10,0x10,0x10,0x00,0x18,0x18,0x00,0x00},/*"?",31*/
{0x00,0x00,0x00,0x1C,0x22,0x5A,0x55,0x55,0x55,0x55,0x55,0x3A,0x42,0x3C,0x00,0x00},/*"@",32*/
{0x00,0x00,0x00,0x08,0x08,0x18,0x14,0x14,0x24,0x3C,0x22,0x42,0x42,0xE7,0x00,0x00},/*"A",33*/
{0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x1E,0x22,0x42,0x42,0x42,0x22,0x1F,0x00,0x00},/*"B",34*/
{0x00,0x00,0x00,0x7C,0x42,0x42,0x01,0x01,0x01,0x01,0x01,0x42,0x22,0x1C,0x00,0x00},/*"C",35*/
{0x00,0x00,0x00,0x1F,0x22,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1F,0x00,0x00},/*"D",36*/
{0x00,0x00,0x00,0x3F,0x42,0x12,0x12,0x1E,0x12,0x12,0x02,0x42,0x42,0x3F,0x00,0x00},/*"E",37*/
{0x00,0x00,0x00,0x3F,0x42,0x12,0x12,0x1E,0x12,0x12,0x02,0x02,0x02,0x07,0x00,0x00},/*"F",38*/
{0x00,0x00,0x00,0x3C,0x22,0x22,0x01,0x01,0x01,0x71,0x21,0x22,0x22,0x1C,0x00,0x00},/*"G",39*/
{0x00,0x00,0x00,0xE7,0x42,0x42,0x42,0x42,0x7E,0x42,0x42,0x42,0x42,0xE7,0x00,0x00},/*"H",40*/
{0x00,0x00,0x00,0x3E,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00},/*"I",41*/
{0x00,0x00,0x00,0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x11,0x0F},/*"J",42*/
{0x00,0x00,0x00,0x77,0x22,0x12,0x0A,0x0E,0x0A,0x12,0x12,0x22,0x22,0x77,0x00,0x00},/*"K",43*/
{0x00,0x00,0x00,0x07,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x42,0x7F,0x00,0x00},/*"L",44*/
{0x00,0x00,0x00,0x77,0x36,0x36,0x36,0x36,0x36,0x2A,0x2A,0x2A,0x2A,0x6B,0x00,0x00},/*"M",45*/
{0x00,0x00,0x00,0xE3,0x46,0x46,0x4A,0x4A,0x52,0x52,0x52,0x62,0x62,0x47,0x00,0x00},/*"N",46*/
{0x00,0x00,0x00,0x1C,0x22,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x22,0x1C,0x00,0x00},/*"O",47*/
{0x00,0x00,0x00,0x3F,0x42,0x42,0x42,0x42,0x3E,0x02,0x02,0x02,0x02,0x07,0x00,0x00},/*"P",48*/
{0x00,0x00,0x00,0x1C,0x22,0x41,0x41,0x41,0x41,0x41,0x41,0x4D,0x32,0x1C,0x60,0x00},/*"Q",49*/
{0x00,0x00,0x00,0x3F,0x42,0x42,0x42,0x3E,0x12,0x12,0x22,0x22,0x42,0xC7,0x00,0x00},/*"R",50*/
{0x00,0x00,0x00,0x7C,0x42,0x42,0x02,0x04,0x18,0x20,0x40,0x42,0x42,0x3E,0x00,0x00},/*"S",51*/
{0x00,0x00,0x00,0x7F,0x49,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x1C,0x00,0x00},/*"T",52*/
{0x00,0x00,0x00,0xE7,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00},/*"U",53*/
{0x00,0x00,0x00,0xE7,0x42,0x42,0x22,0x24,0x24,0x14,0x14,0x18,0x08,0x08,0x00,0x00},/*"V",54*/
{0x00,0x00,0x00,0x6B,0x2A,0x2A,0x2A,0x2A,0x2A,0x36,0x14,0x14,0x14,0x14,0x00,0x00},/*"W",55*/
{0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x18,0x18,0x18,0x24,0x24,0x42,0xE7,0x00,0x00},/*"X",56*/
{0x00,0x00,0x00,0x77,0x22,0x22,0x14,0x14,0x08,0x08,0x08,0x08,0x08,0x1C,0x00,0x00},/*"Y",57*/
{0x00,0x00,0x00,0x7E,0x21,0x20,0x10,0x10,0x08,0x04,0x04,0x42,0x42,0x3F,0x00,0x00},/*"Z",58*/
{0x00,0x78,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x78,0x00},/*"[",59*/
{0x00,0x00,0x02,0x04,0x04,0x04,0x08,0x08,0x08,0x10,0x10,0x20,0x20,0x20,0x40,0x40},/*"\",60*/
{0x00,0x1E,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1E,0x00},/*"]",61*/
{0x00,0x18,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"^",62*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF},/*"_",63*/
{0x00,0x06,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"`",64*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x22,0x30,0x2C,0x22,0x32,0x6C,0x00,0x00},/*"a",65*/
{0x00,0x00,0x00,0x00,0x03,0x02,0x02,0x1A,0x26,0x42,0x42,0x42,0x26,0x1A,0x00,0x00},/*"b",66*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x44,0x02,0x02,0x02,0x44,0x38,0x00,0x00},/*"c",67*/
{0x00,0x00,0x00,0x00,0x60,0x40,0x40,0x7C,0x42,0x42,0x42,0x42,0x62,0xDC,0x00,0x00},/*"d",68*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x42,0x7E,0x02,0x42,0x3C,0x00,0x00},/*"e",69*/
{0x00,0x00,0x00,0x00,0x30,0x48,0x08,0x3E,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00},/*"f",70*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x22,0x22,0x1C,0x02,0x3C,0x42,0x42,0x3C},/*"g",71*/
{0x00,0x00,0x00,0x00,0x03,0x02,0x02,0x3A,0x46,0x42,0x42,0x42,0x42,0xE7,0x00,0x00},/*"h",72*/
{0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x0E,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00},/*"i",73*/
{0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x38,0x20,0x20,0x20,0x20,0x20,0x20,0x22,0x1E},/*"j",74*/
{0x00,0x00,0x00,0x00,0x03,0x02,0x02,0x72,0x12,0x0A,0x0E,0x12,0x22,0x77,0x00,0x00},/*"k",75*/
{0x00,0x00,0x00,0x08,0x0E,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00},/*"l",76*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x92,0x92,0x92,0x92,0x92,0xB7,0x00,0x00},/*"m",77*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3B,0x46,0x42,0x42,0x42,0x42,0xE7,0x00,0x00},/*"n",78*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00},/*"o",79*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1B,0x26,0x42,0x42,0x42,0x26,0x1A,0x02,0x07},/*"p",80*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x58,0x64,0x42,0x42,0x42,0x64,0x58,0x40,0xE0},/*"q",81*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x77,0x4C,0x04,0x04,0x04,0x04,0x1F,0x00,0x00},/*"r",82*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x42,0x02,0x3C,0x40,0x42,0x3E,0x00,0x00},/*"s",83*/
{0x00,0x00,0x00,0x00,0x00,0x08,0x08,0x3E,0x08,0x08,0x08,0x08,0x48,0x30,0x00,0x00},/*"t",84*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x63,0x42,0x42,0x42,0x42,0x62,0xDC,0x00,0x00},/*"u",85*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x77,0x22,0x22,0x14,0x14,0x08,0x08,0x00,0x00},/*"v",86*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDB,0x91,0x52,0x5A,0x2A,0x24,0x24,0x00,0x00},/*"w",87*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x6E,0x24,0x18,0x18,0x18,0x24,0x76,0x00,0x00},/*"x",88*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x18,0x18,0x08,0x08,0x06},/*"y",89*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7E,0x22,0x10,0x08,0x08,0x44,0x7E,0x00,0x00},/*"z",90*/
{0x00,0xC0,0x20,0x20,0x20,0x20,0x20,0x20,0x10,0x20,0x20,0x20,0x20,0x20,0xC0,0x00},/*"{",91*/
{0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10},/*"|",92*/
{0x00,0x03,0x04,0x04,0x04,0x04,0x04,0x04,0x08,0x04,0x04,0x04,0x04,0x04,0x03,0x00},/*"}",93*/
{0x04,0x5A,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"~",94*/
};

ID:88256 · 發(fā)表于 2022-8-19 18:20

既然都會(huì)用匯編玩彩屏了，就應(yīng)該知道51根本就沒有接收字母的指令，你又如何能夠讓它接受“OK”的輸入并調(diào)取字模呢？不過(guò)倒是可以匯編和C混用，利用C來(lái)完成調(diào)用

ID:624769 · 發(fā)表于 2022-8-19 18:21

C語(yǔ)言里二維數(shù)組，其效率遠(yuǎn)不如匯編里面用jmp 跳轉(zhuǎn)加movc讀取來(lái)的高，你真要學(xué)c里面這種方式，直接編譯一下看他的匯編指令，抄一下不就好了？無(wú)非就是先做乘法計(jì)算指針，再用movc讀取而已。

ID:1042355 · 發(fā)表于 2022-8-20 09:10

hhdsdy 發(fā)表于 2022-8-19 18:20
既然都會(huì)用匯編玩彩屏了，就應(yīng)該知道51根本就沒有接收字母的指令，你又如何能夠讓它接受“OK”的輸入并調(diào)取 ...

謝謝大佬指導(dǎo)。

ID:1042355 · 發(fā)表于 2022-8-20 09:11

188610329 發(fā)表于 2022-8-19 18:21
C語(yǔ)言里二維數(shù)組，其效率遠(yuǎn)不如匯編里面用jmp 跳轉(zhuǎn)加movc讀取來(lái)的高，你真要學(xué)c里面這種方式，直接編譯一下 ...

感謝指導(dǎo)。

ID:367133 · 發(fā)表于 2022-8-20 12:06

大致是這意思吧
  置顯存：
            MOV DPTR,#ascii
            mov r2 #0fh ；一個(gè)ascii字符有字節(jié)就置幾回
            mov r1，#80h  ；在顯示中斷里的緩存地址
loop1：MOV A,“O" ；在ascii表的地址
            mov b，#ofh ；一個(gè)ascii字符有字節(jié)就乘幾
         MUL AB       ；一字節(jié)乘法不夠就換2字節(jié)乘法
         MOVC  A,@A+DPTR
         mov @r1 a    ；置顯示緩存
         inc r1
         inc DPTR
         djnz  r2，loop1
         ret
只是示意不完全正確

ID:367133 · 發(fā)表于 2022-8-20 21:59

大致好像是這樣吧

  置顯存：
            MOV DPTR,#ascii
            mov r2 #0fh ；一個(gè)ascii字符有字節(jié)就置幾個(gè) 這是16個(gè)
            mov r1，#80h  ；在顯示中斷里的緩存地址
loop1：MOV A,“O" ；在ascii表的地址 4F 也可以是@r0
            mov b，#ofh ；一個(gè)ascii字符有字節(jié)就乘幾 *16
            MUL AB       ；一字節(jié)乘法不夠就換2字節(jié)乘法
            MOVC  A,@A+DPTR
            mov @r1 a    ；置顯示緩存
            inc    r1
            inc    DPTR
            djnz  r2，loop1
            ret

大致意思是這樣吧不保證完全正確。

ID:1042355 · 發(fā)表于 2022-8-22 15:44

nbao 發(fā)表于 2022-8-20 21:59
大致好像是這樣吧

置顯存：

感謝大師指導(dǎo)，學(xué)習(xí)了。

ID:1049227 · 發(fā)表于 2022-10-26 00:02

很厲害很有用

ID:72050 · 發(fā)表于 2022-11-1 07:40

這個(gè)用字模提前軟件搞的？

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