stack pointer and memsize

2023-10-13 23:53:41 +03:00
parent 0c5d5e4b1b
commit 060c0de0f3
2 changed files with 3 additions and 2 deletions
--- a/src/tinyriscv.h
+++ b/src/tinyriscv.h
@@ -12,7 +12,7 @@ typedef int16_t i16;
 typedef int32_t i32;

 typedef struct{
-	u32 regs[32], pc;
+	u32 regs[32], pc, mem_size;
 	u8* mem;
 }trv_cpu;

@@ -174,6 +174,7 @@ void trv_step(trv_cpu* cpu){
 }

 void trv_init(trv_cpu* cpu){
+	cpu->regs[2] = trv_MEM_OFFSET + cpu->mem_size;
 	cpu->pc = trv_MEM_OFFSET;
 }