jaby/jabyengine
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Somehow works?!

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jaby
2024-05-09 23:15:04 +02:00
parent dcacbd9c24
commit c10218d311
2 changed files with 183 additions and 0 deletions
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50
include/PSX/System/syscalls.hpp
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@@ -45,6 +45,34 @@ namespace JabyEngine {
extern const Version version;
}
struct TCB {
uint32_t status;
uint32_t unused;
uint32_t reg[32];
uint32_t epc;
uint32_t hi;
uint32_t lo;
uint32_t sr;
uint32_t cause;
uint32_t unused2[6];
};
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));
}
static __always_inline void set_tcb(TCB* adr) {
reinterpret_cast<PCB*>(0x108)->current_tcb = adr;
}
static __always_inline TCB& get_current_tcb() {
return *reinterpret_cast<PCB*>(0x108)->current_tcb;
}
namespace SysCall {
static constexpr const uint32_t Table_A = 0xA0;
static constexpr const uint32_t Table_B = 0xB0;
@@ -92,6 +120,28 @@ namespace JabyEngine {
return __syscall_function_cast(Table_A, void*(*)(void*, const void*, size_t))(dst, src, len);
}
static __always_inline uint32_t OpenTh(void (*thread_func)(), uint32_t* stack_ptr, uint32_t* gp) {
register uint32_t FuncID asm("t1") = 0x0E;
__asm__ volatile("" : "=r"(FuncID) : "r"(FuncID));
return __syscall_function_cast(Table_B, uint32_t(*)(void(*)(), uint32_t*, uint32_t*))(thread_func, stack_ptr, gp);
}
static __always_inline uint32_t ChangeTh(uint32_t thread) {
register uint32_t FuncID asm("t1") = 0x10;
__asm__ volatile("" : "=r"(FuncID) : "r"(FuncID));
return __syscall_function_cast(Table_B, uint32_t(*)(uint32_t))(thread);
}
static __always_inline int changeThreadSubFunction(uint32_t address) {
register int n asm("a0") = 3;
register int tcb asm("a1") = address;
register int r asm("v0");
__asm__ volatile("syscall\n" : "=r"(r) : "r"(n), "r"(tcb) : "memory");
return r;
}
static __always_inline void InitPad(uint8_t *portA, uint32_t portASize, uint8_t *portB, uint32_t portBSize) {
register uint32_t FuncID asm("t1") = 0x12;
__asm__ volatile("" : "=r"(FuncID) : "r"(FuncID));