如何在RISC-V Assembly中打印正数和负数的总和

Question

该程序存储一个包含 25 个整数（字）的数组。然后计算正数之和和负数之和，然后打印正数和负数之和。

错误信息：

Error in /Users/COD/subtractandadd.asm line 76 column 15: "v0": operand is of incorrect type
Error in /Users/COD/subtractandadd.asm line 80 column 15: "v0": operand is of incorrect type
Error in /Users/COD/subtractandadd.asm line 81 column 12: "la": Too many or incorrectly formatted operands. Expected: la t1,label  
Error in /Users/COD/subtractandadd.asm line 85 column 15: "v0": operand is of incorrect type
Error in /Users/COD/subtractandadd.asm line 89 column 15: "v0": operand is of incorrect type
Error in /Users/COD/subtractandadd.asm line 90 column 12: "la": Too many or incorrectly formatted operands. Expected: la t1,label  
Error in /Users/COD/subtractandadd.asm line 92 column 11: "v0": operand is of incorrect type

打印并退出代码：

    #exit and print     
    exit:
   
          #print the positive numbers total
                   li v0,4
                   la a0,totalPositive
                   ecall
                   #print the +ve sum
                   li v0,1
                   la a0,($s1)
                   ecall 
    
         #print the negative total
                   li v0,4
                   la a0,totalNegative
                   ecall
                   #print the -ve sum
                   li v0,1
                   la a0,($s2)
                   ecall
               li v0,10 #end of program exit
               ecall

Answer 1

您正在使用仅适用于矢量扩展的 v0 寄存器。如果你是工具链。

gnu 工具链的编译器和“标准”binutils 似乎还不支持它。有一个专用的 binutils 分支 https://github.com/riscv/riscv-binutils-gdb/tree/rvv-1.0.x.

LLVM 也不支持它。

如何在RISC-V Assembly中打印正数和负数的总和

How to print the total of positive and negative numbers in RISC-V Assembly

assembly

riscv