~maddie/custom-processor-simulator

408e224fccfd8f5f88cf37a1890270c0d18268a6 — Madeline Cronin 11 days ago 2fff698 
Write tests for logic ops and related behaviours.
Also un-scuffed the values provided to new() in the tests.
patch browse .tar.gz 
1 files changed, 116 insertions(+), 60 deletions(-)

M src/processor.rs

M src/processor.rs => src/processor.rs +116 -60
@@ 329,10 329,10 @@ mod tests {

    #[test]
    fn immediate() {
        let memory: &mut [u16] = &mut [0x0600, 45, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 45, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 340,10 340,10 @@ mod tests {
    }
    #[test]
    fn conditional() {
        let memory: &mut [u16] = &mut [0x0600, 17, 0xF600, 69, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 17, 0xF600, 69, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 352,10 352,10 @@ mod tests {

    #[test]
    fn add() {
        let memory: &mut [u16] = &mut [0x0600, 3, 0x0608, 4, 0x0100, 0x0044, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 3, 0x0608, 4, 0x0100, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 363,10 363,10 @@ mod tests {
    }
    #[test]
    fn overflow () {
        let memory: &mut [u16] = &mut [0x0600, u16::MAX, 0x0608, 5, 0x0140, 0x0044, 0xA618, 5, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, u16::MAX, 0x0608, 5, 0x0140, 0x0044, 0xA618, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 375,10 375,10 @@ mod tests {
    }
    #[test]
    fn signed_overflow () {
        let memory: &mut [u16] = &mut [0x0600, i16::MAX as u16, 0x0608, 5, 0x01E0, 0x0044, 0x5618, 5, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, i16::MAX as u16, 0x0608, 5, 0x01E0, 0x0044, 0x5618, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 387,10 387,10 @@ mod tests {
    }
    #[test]
    fn arithmetic_invert () {
        let memory: &mut [u16] = &mut [0x0600, 3, 0x0608, 4, 0x0110, 0x0044, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 3, 0x0608, 4, 0x0110, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 398,10 398,10 @@ mod tests {
    }
    #[test]
    fn sub () {
        let memory: &mut [u16] = &mut [0x0600, 5, 0x0608, 3, 0x0101, 0x0044, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 5, 0x0608, 3, 0x0101, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 409,10 409,10 @@ mod tests {
    }
    #[test]
    fn underflow () {
        let memory: &mut [u16] = &mut [0x0600, 3, 0x0608, 5, 0x0141, 0x0044, 0xA618, 7, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 3, 0x0608, 5, 0x0141, 0x0044, 0xA618, 7, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 421,10 421,10 @@ mod tests {
    }
    #[test]
    fn signed_underflow () {
        let memory: &mut [u16] = &mut [0x0600, 3, 0x0608, 5, 0x01C1, 0x0044, 0x0600, i16::MIN as u16, 0x01E1, 0x0046, 0xD620, 7, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 3, 0x0608, 5, 0x01C1, 0x0044, 0x0600, i16::MIN as u16, 0x01E1, 0x0046, 0xD620, 7, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 434,10 434,10 @@ mod tests {
    }
    #[test]
    fn mult () {
        let memory: &mut [u16] = &mut [0x0600, 3, 0x0608, 5, 0x0102, 0x0044, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 3, 0x0608, 5, 0x0102, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 445,10 445,10 @@ mod tests {
    }
    #[test]
    fn mult_overflow () {
        let memory: &mut [u16] = &mut [0x0600, 3, 0x0608, u16::MAX, 0x0142, 0x0044, 0xA618, 5, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 3, 0x0608, u16::MAX, 0x0142, 0x0044, 0xA618, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 457,10 457,10 @@ mod tests {
    }
    #[test]
    fn mult_signed_overflow () {
        let memory: &mut [u16] = &mut [0x0600, 2, 0x0608, i16::MAX as u16, 0x01C2, 0x0044, 0xA618, 5, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 2, 0x0608, i16::MAX as u16, 0x01C2, 0x0044, 0xA618, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 469,10 469,10 @@ mod tests {
    }
    #[test]
    fn div () {
        let memory: &mut [u16] = &mut [0x0600, 7, 0x0608, 3, 0x0103, 0x0044, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 7, 0x0608, 3, 0x0103, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 480,10 480,10 @@ mod tests {
    }
    #[test]
    fn signed_div () { 
        let memory: &mut [u16] = &mut [0x0600, 13, 0x0608, -4i16 as u16, 0x0183, 0x0044, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 13, 0x0608, -4i16 as u16, 0x0183, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }


@@ 491,14 491,70 @@ mod tests {
    }
    #[test]
    fn div_by_0 () {
        let memory: &mut [u16] = &mut [0x0600, 5, 0x0143, 0x0044, 0xA618, 5, 0, 0];
        let disk: &mut [u16] = &mut [0];
        let vram: &mut [u16] = &mut [0];
        let mut processor = new(memory, disk, vram);
        let mut memory = [0x0600, 5, 0x0143, 0x0044, 0xA618, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }
        assert_eq!(processor.reg[2], 0);
        assert_eq!(processor.reg[3], 5);
    }
    #[test]
    fn logic_and () {
        let mut memory = [0x0600, 0b11010, 0x0608, 0b10110, 0x0200, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }
        assert_eq!(processor.reg[2], 0b10010);
    }
    #[test]
    fn logic_or () {
        let mut memory = [0x0600, 0b10010, 0x0608, 0b11000, 0x0201, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }
        assert_eq!(processor.reg[2], 0b11010);
    }
    #[test]
    fn logic_xor () {
        let mut memory = [0x0600, 0b01101, 0x0608, 0b01011, 0x0202, 0x0044, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }
        assert_eq!(processor.reg[2], 0b00110);
    }
    #[test]
    fn logic_zero() {
        let mut memory = [0x0600, 5, 0x02A0, 0x0000, 0x02C0, 0x1112, 0xF608, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }
        assert_eq!(processor.reg[1], 5);
    }
    #[test]
    fn logic_invert() {
        let mut memory = [0x02B0, 0x0002, 0xA610, 5, 0, 0];
        let mut disk = [0];
        let mut vram = [0];
        let mut processor = new(&mut memory, &mut disk, &mut vram);
        loop {
            if processor.run() {break};
        }
        assert_eq!(processor.reg[1], u16::MAX);
        assert_eq!(processor.reg[2], 5);
    }
}