From c784b1150407a85946f9d45553893349de45a577 Mon Sep 17 00:00:00 2001 From: Anthony Green Date: Fri, 12 Dec 2014 08:44:19 -0500 Subject: [PATCH] Add zex instruction support for moxie port --- sim/moxie/ChangeLog | 4 ++++ sim/moxie/interp.c | 20 ++++++++++++++++++-- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/sim/moxie/ChangeLog b/sim/moxie/ChangeLog index f168fc68316..d3331c6f13f 100644 --- a/sim/moxie/ChangeLog +++ b/sim/moxie/ChangeLog @@ -1,3 +1,7 @@ +2014-12-12 Anthony Green + + * interp.c (sim_resume): Add zex instructions. + 2014-08-19 Alan Modra * configure: Regenerate. diff --git a/sim/moxie/interp.c b/sim/moxie/interp.c index 4362c66bb54..fdb652850e3 100644 --- a/sim/moxie/interp.c +++ b/sim/moxie/interp.c @@ -604,8 +604,24 @@ sim_resume (sd, step, siggnal) cpu.asregs.regs[a] = (int) bv; } break; - case 0x12: /* bad */ - case 0x13: /* bad */ + case 0x12: /* zex.b */ + { + int a = (inst >> 4) & 0xf; + int b = inst & 0xf; + signed char bv = cpu.asregs.regs[b]; + TRACE("zex.b"); + cpu.asregs.regs[a] = (int) bv & 0xff; + } + break; + case 0x13: /* zex.s */ + { + int a = (inst >> 4) & 0xf; + int b = inst & 0xf; + signed short bv = cpu.asregs.regs[b]; + TRACE("zex.s"); + cpu.asregs.regs[a] = (int) bv & 0xffff; + } + break; case 0x14: /* bad */ case 0x15: /* bad */ case 0x16: /* bad */ -- 2.30.2