diff options
Diffstat (limited to 'sim/tic80/insns')
| -rw-r--r-- | sim/tic80/insns | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sim/tic80/insns b/sim/tic80/insns index 396dcd6..5a4110b 100644 --- a/sim/tic80/insns +++ b/sim/tic80/insns @@ -633,6 +633,7 @@ instruction_address::function::do_jsr:instruction_address nia, signed32 *rLink, // ld[{.b.h.d}] void::function::do_ld:int Dest, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset unsigned32 addr; + unsigned64 u64; switch (sz) { case 0: @@ -660,7 +661,9 @@ void::function::do_ld:int Dest, unsigned32 Base, unsigned32 *rBase, int m , int addr = Base + (S ? (Offset << 3) : Offset); if (m) *rBase = addr; - *(unsigned64*)(&GPR(Dest)) = MEM (signed, addr, 8); + u64 = MEM (signed, addr, 8); + GPR(Dest) = (unsigned32) u64; + GPR(Dest+1) = (unsigned32) (u64 >> 32); break; default: addr = -1; @@ -895,6 +898,7 @@ void::function::do_shift:int Dest, int Source, int Merge, int i, int n, int EndM // st[{.b|.h|.d}] void::function::do_st:int Source, unsigned32 Base, unsigned32 *rBase, int m , int sz, int S, unsigned32 Offset unsigned32 addr; + unsigned64 u64; switch (sz) { case 0: @@ -914,7 +918,9 @@ void::function::do_st:int Source, unsigned32 Base, unsigned32 *rBase, int m , in engine_error (SD, CPU, cia, "0x%lx: st.d with odd source register %d", cia.ip, Source); addr = Base + (S ? (Offset << 3) : Offset); - STORE (addr, 8, *(unsigned64*)&GPR(Source)); + u64 = GPR (Source); + u64 |= (((unsigned64) GPR (Source+1)) << 32); + STORE (addr, 8, u64); break; default: addr = -1; |