Assembly language can be embedded in C language to give full play to the advantages of assembly language in programming.
The method is to add the established C file after the project is built, and keep other settings unchanged. First,
write the assembly language between #pragma asm
......; assembly language writing area
#pragma endasm
, and at the same time, set the compiler to mix the corresponding assembly language.
Step 1:
Step 2
The third step is to compile and run.
If the assembler in the C language is cancelled, the previous settings should also be removed accordingly, otherwise an error will occur.
#include
int i,k;
void main(void)
{
P2=0x00;
while(1)
{
for(i=0;i<8;i++)
{
P2=1<
mov r7,#00h
dd:mov r6,#00h
ddd:nop
nop
nop
nop
djnz r6,ddd
djnz r7,dd
#pragma endasm
}
}
}
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RP2040 Assembly Language Programming ARM Cortex-M0+ on the Raspberry Pi Pico
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Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
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