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Use original code instead of frankensteining

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jaby
2024-05-13 21:46:42 +02:00
parent 6a68500896
commit c5cb59caa8
3 changed files with 45 additions and 122 deletions
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43
include/PSX/System/syscalls.hpp
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@@ -54,24 +54,41 @@ namespace JabyEngine {
uint32_t lo;
uint32_t sr;
uint32_t cause;
uint32_t unused2[6];
uint32_t unused2[9];
};
struct PCB {
TCB* current_tcb;
};
static __always_inline TCB* get_tcb_of_th(uint32_t id) {
return reinterpret_cast<TCB*>((*reinterpret_cast<uint32_t*>(0x110)) + (id*4));
}
struct ToT {
using ExCB = void;
using EvCB = void;
using FCB = void;
static __always_inline void set_tcb(TCB* adr) {
reinterpret_cast<PCB*>(0x108)->current_tcb = adr;
}
ExCB* exception_chain;
uint32_t exception_chain_size;
PCB* processes;
uint32_t processes_size;
TCB* threads;
uint32_t threads_size;
uint32_t reserved_0;
uint32_t reserved_1;
EvCB* events;
uint32_t events_size;
uint32_t reserved_2;
uint32_t reserved_3;
uint32_t reserved_4;
uint32_t reserved_5;
uint32_t reserved_6;
uint32_t reserved_7;
FCB* files;
uint32_t files_size;
uint32_t reserved_8;
uint32_t reserved_9;
};
static __always_inline TCB& get_current_tcb() {
return *reinterpret_cast<PCB*>(0x108)->current_tcb;
}
extern ToT table_of_tables;
namespace SysCall {
static constexpr const uint32_t Table_A = 0xA0;
@@ -113,6 +130,12 @@ namespace JabyEngine {
#define __syscall_function_cast(table, ...) reinterpret_cast<__VA_ARGS__>(table)
static __always_inline uint32_t* get_gp() {
uint32_t* gp;
__asm__("sw $gp, %0" : "=m"(gp));
return gp;
}
static __always_inline void* memcpy(void *dst, const void *src, size_t len) {
register uint32_t FuncID asm("t1") = 0x2A;
__asm__ volatile("" : "=r"(FuncID) : "r"(FuncID));