paoda/zba
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

chore: refactor instruction exec code

Browse Source
This commit is contained in:
Rekai Nyangadzayi Musuka
2022-01-07 19:44:48 -04:00
parent a407671de2
commit f8c6af3247
5 changed files with 37 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/cpu/half_signed_data_transfer.zig
View File

@@ -6,9 +6,9 @@ const Bus = @import("../bus.zig").Bus;
const Arm7tdmi = arm.Arm7tdmi;
const InstrFn = arm.InstrFn;
pub fn comptimeHalfSignedDataTransfer(comptime P: bool, comptime U: bool, comptime I: bool, comptime W: bool, comptime L: bool) InstrFn {
pub fn halfAndSignedDataTransfer(comptime P: bool, comptime U: bool, comptime I: bool, comptime W: bool, comptime L: bool) InstrFn {
return struct {
fn halfSignedDataTransfer(cpu: *Arm7tdmi, bus: *Bus, opcode: u32) void {
fn inner(cpu: *Arm7tdmi, bus: *Bus, opcode: u32) void {
const rn = opcode >> 16 & 0xF;
const rd = opcode >> 12 & 0xF;
const rm = opcode & 0xF;
@@ -59,5 +59,5 @@ pub fn comptimeHalfSignedDataTransfer(comptime P: bool, comptime U: bool, compti
address = modified_base;
if (W and P or !P) cpu.r[rn] = address;
}
}.halfSignedDataTransfer;
}.inner;
}