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| author | Jeff Law <law@redhat.com> | 1997-11-11 17:37:04 +0000 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 1997-11-11 17:37:04 +0000 |
| commit | fc615b0b1eb002a7304b68665c65d3a2a84dfb05 (patch) | |
| tree | 01ac003d3b9e7a8fc1a784523b1a1863beae425e /sim/mn10300 | |
| parent | a94c5493a74f965bb0fac3e0c6caf0621cb3097f (diff) | |
| download | gdb-fc615b0b1eb002a7304b68665c65d3a2a84dfb05.zip gdb-fc615b0b1eb002a7304b68665c65d3a2a84dfb05.tar.gz gdb-fc615b0b1eb002a7304b68665c65d3a2a84dfb05.tar.bz2 | |
* simops.c (call:16 call:32): Stack adjustment is determined solely
by the imm8 field.
Diffstat (limited to 'sim/mn10300')
| -rw-r--r-- | sim/mn10300/simops.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sim/mn10300/simops.c b/sim/mn10300/simops.c index 3d82952..9a3f3a3 100644 --- a/sim/mn10300/simops.c +++ b/sim/mn10300/simops.c @@ -2586,8 +2586,10 @@ void OP_CD000000 (insn, extension) sp -= 4; } - /* Update the stack pointer. */ - State.regs[REG_SP] = sp - extension; + /* Update the stack pointer, note that the register saves to do not + modify SP. The SP adjustment is derived totally from the imm8 + field. */ + State.regs[REG_SP] -= extension; State.regs[REG_MDR] = next_pc; State.regs[REG_PC] += SEXT16 ((insn & 0xffff00) >> 8) - 5; } @@ -2651,8 +2653,10 @@ void OP_DD000000 (insn, extension) sp -= 4; } - /* Update the stack pointer. */ - State.regs[REG_SP] = sp - (extension & 0xff); + /* Update the stack pointer, note that the register saves to do not + modify SP. The SP adjustment is derived totally from the imm8 + field. */ + State.regs[REG_SP] -= (extension & 0xff); State.regs[REG_MDR] = next_pc; State.regs[REG_PC] += (((insn & 0xffffff) << 8) | ((extension & 0xff0000) >> 16)) - 7; } |