149 lines
2.4 KiB
C
149 lines
2.4 KiB
C
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#include "stdint.h"
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#include "head.h"
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// 无符号大小比较
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void test1(uint32_t a,uint32_t b){
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if(a>b){
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my_printf("%u>%u\n",a,b);
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}else if(a<b){
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my_printf("%u<%u\n",a,b);
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}else{
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my_printf("%u==%u\n",a,b);
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}
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}
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// 有符号大小比较
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void test2(int32_t a,int32_t b){
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if(a>b){
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my_printf("%d>%d\n",a,b);
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}else if(a<b){
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my_printf("%d<%d\n",a,b);
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}else{
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my_printf("%d==%d\n",a,b);
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}
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}
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// uint16_t 大小比较
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void test3(uint16_t a,uint16_t b){
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if(a>b){
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my_printf("%u>%u\n",a,b);
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}else if(a<b){
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my_printf("%u<%u\n",a,b);
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}else{
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my_printf("%u==%u\n",a,b);
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}
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}
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void test4(int16_t a,int16_t b){
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if(a>b){
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my_printf("%d>%d\n",a,b);
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}else if(a<b){
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my_printf("%d<%d\n",a,b);
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}else{
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my_printf("%d==%d\n",a,b);
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}
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}
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// uint8_t 大小比较
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void test5(uint8_t a,uint8_t b){
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if(a>b){
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my_printf("%u>%u\n",a,b);
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}else if(a<b){
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my_printf("%u<%u\n",a,b);
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}else{
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my_printf("%u==%u\n",a,b);
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}
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}
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void test6(int8_t a,int8_t b){
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if(a>b){
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my_printf("%d>%d\n",a,b);
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}else if(a<b){
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my_printf("%d<%d\n",a,b);
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}else{
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my_printf("%d==%d\n",a,b);
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}
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}
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void test7(uint32_t a,int b){
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my_printf("shift right %08x, %08x\n",a,a>>b);
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}
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void test8(int32_t a,int b){
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my_printf("shift right %08x, %08x\n",a,a>>b);
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}
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void test9(uint16_t a,int b){
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my_printf("shift right %08x, %08x\n",a,a>>b);
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}
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void test10(int16_t a,int b){
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my_printf("shift right %08x, %08x\n",a,a>>b);
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}
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void test11(uint8_t a,int b){
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my_printf("shift right %08x, %08x\n",a,a>>b);
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}
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void test12(int8_t a,int b){
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my_printf("shift right %08x, %08x\n",a,a>>b);
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}
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int add(int a, int b) {
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return a+b;
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}
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void cpu_test() {
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my_printf("test 32 bit\n");
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test1(1,2);
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test1(1,-2);
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test2(1,2);
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test2(1,-2);
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my_printf("test 16 bit\n");
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test3(1,2);
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test3(1,-2);
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test4(1,2);
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test4(1,-2);
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my_printf("test 8 bit\n");
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test5(1,2);
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test5(1,-2);
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test6(1,2);
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test6(1,-2);
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my_printf("shift test\n");
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test7(0x80000000,7);
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test8(0x80000000,7);
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test9(0x8000,7);
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test10(0x8000,7);
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test11(0x80,7);
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test12(0x80,7);
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int a=1;
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int b=2;
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typedef void (*fun_t)(void);
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fun_t fun = (fun_t)0;
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set_csr(mstatus, 0x00000008);
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fun();
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int c = add(a, b);
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my_printf("add(%d, %d)=%d\n", a, b, c);
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a = 67;b = -78;
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fun=(fun_t)0xff000000;
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fun();
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my_printf("mul(%d, %d)=%d\n", a, b, a * b);
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my_printf("ram_val test: %s\n", "test string");
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}
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