Arduino for STM32

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#include <SoftwareSerial.h>
#define RX  PB1
#define TX  PB0

SoftwareSerial serial(RX, TX);

//nTIME and nWR pins from Genesis
#define nTIME PB15
#define nWR PB2 

//data pins from Genesis
#define d0 PA8
#define d1 PA9
#define d2 PA10
#define d3 PA11
#define d4 PA12
#define d5 PB5
#define d6 PB6
#define d7 PB7

bool val;
volatile int notTime;

void setup() {

  //start serial
  serial.begin(9600);

  //set pins for Software Serial communication
  pinMode(RX, INPUT);
  pinMode(TX, OUTPUT);

  //set nWR, nTIME and data pins
  pinMode(nTIME, INPUT);
  pinMode(nWR, INPUT);
  pinMode(d0, INPUT);
  pinMode(d1, INPUT);
  pinMode(d2, INPUT);
  pinMode(d3, INPUT);
  pinMode(d4, INPUT);
  pinMode(d5, INPUT);
  pinMode(d6, INPUT);
  pinMode(d7, INPUT);

  //use interrupt for nTIME
  attachInterrupt(digitalPinToInterrupt(nTIME),time_ISR,RISING);
  
}

void time_ISR(){
  notTime = 0;
}

void loop() {
  //set nTIME interrupt high by default - wait for it to trigger
  notTime = 1;
  while (notTime){      
  //wait in here until interrupt triggers and boots us out of the while block
  }
  //as soon as interrupt is triggered, grab bit info from data[0]
  val = GPIOA->IDR & 0x0100;     

  //print info to monitor
  serial.println(val);
}

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  bool isTime = GPIOB->IDR & 0x8000;
  while(isTime){
    isTime = GPIOB->IDR & 0x8000;
  }
  while((isTime)==0){
    isTime = GPIOB->IDR & 0x8000;
    val = GPIOA->IDR & 0x0100;
  }
  serial.println(val);
  

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noInterrupts();
interrupts();

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//OR bits 7-0 together into byte 'value' - each IDR read should register a 1 if true, else a 0
byte value = (GPIOB->IDR & 0x0080 | GPIOB->IDR & 0x0040 | GPIOB->IDR & 0x0020 | GPIOA->IDR & 0x1000 | GPIOA->IDR & 0x0800 | GPIOA->IDR & 0x0400 | GPIOA->IDR & 0x0200 | GPIOA->IDR & 0x0100);

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uint32 pa = GPIOA->IDR;
uint32 pb = GPIOB->IDR;
byte value = (pa & 0x...) | (pb & 0x...)