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| author | Michael Meissner <gnu@the-meissners.org> | 1997-05-12 02:04:02 +0000 |
|---|---|---|
| committer | Michael Meissner <gnu@the-meissners.org> | 1997-05-12 02:04:02 +0000 |
| commit | 8ad607885008d471bdb40901b18cc46f7be7fb69 (patch) | |
| tree | 14a0d3511a46bca2baff3cbcbeaa220986b91b43 /sim/tic80 | |
| parent | 450be2349aa1beda81274be407713657f457ef50 (diff) | |
| download | gdb-8ad607885008d471bdb40901b18cc46f7be7fb69.zip gdb-8ad607885008d471bdb40901b18cc46f7be7fb69.tar.gz gdb-8ad607885008d471bdb40901b18cc46f7be7fb69.tar.bz2 | |
Fix endian problems with ld.d/st.d
Diffstat (limited to 'sim/tic80')
| -rw-r--r-- | sim/tic80/ChangeLog | 1 | ||||
| -rw-r--r-- | sim/tic80/insns | 10 |
2 files changed, 9 insertions, 2 deletions
diff --git a/sim/tic80/ChangeLog b/sim/tic80/ChangeLog index b22b9d3..ac4ffa5 100644 --- a/sim/tic80/ChangeLog +++ b/sim/tic80/ChangeLog @@ -11,6 +11,7 @@ Sun May 11 10:25:14 1997 Michael Meissner <meissner@cygnus.com> instead of TRACE_ALU2. (sl r): Use EndMask as is, instead of using Source+1 register. (subu): Operands are unsigned, not signed. + (do_{ld,st}): Fix endian problems with ld.d/st.d. Sat May 10 12:35:47 1997 Michael Meissner <meissner@cygnus.com> 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; |