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feat(cpu): Implement ORR

This commit is contained in:
Rekai Nyangadzayi Musuka 2022-10-21 05:11:53 -03:00
parent 670347d4a0
commit 34c6df344d
1 changed files with 10 additions and 0 deletions
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10
src/cpu/data_processing.zig
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@ -64,6 +64,16 @@ pub fn dataProcessing(comptime I: bool, comptime S: bool, comptime instrKind: u4
cpu.cpsr.c.write(op2 <= cpu.r[op1]); cpu.cpsr.c.write(op2 <= cpu.r[op1]);
cpu.cpsr.v.write(((op1 ^ result) & (~op2 ^ result)) >> 31 & 1 == 1); cpu.cpsr.v.write(((op1 ^ result) & (~op2 ^ result)) >> 31 & 1 == 1);
}, },
0xC => {
// ORR
const result = cpu.r[op1] | op2;
if (S and rd != 0xF) {
cpu.cpsr.n.write(result >> 31 & 1 == 1);
cpu.cpsr.z.write(result == 0);
// C set by Barr0x15el Shifter, V is unnafected
}
},
else => std.debug.panic("[CPU] TODO: implement data processing type {}", .{instrKind}), else => std.debug.panic("[CPU] TODO: implement data processing type {}", .{instrKind}),
} }
} }