Created
November 4, 2019 12:20
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| ldr r2,[r0,#4] ;# Get current register contents | |
| ldr r1,#7 ;# bit mask | |
| lsl r1,#21 ;# shift it to the right gpio bits | |
| bic r2,r2 ;# clear the bits | |
| mov r1,#1 ;# write mode | |
| lsl r1,#21 ;# shift it to the right bits | |
| orr r1,r2 ;# combine with the state of the other gpios | |
| str r1,[r0,#28] ;# Update the register contents |
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