From 88505bff06822e2d6313de477874a7a816935ea7 Mon Sep 17 00:00:00 2001 From: cinap_lenrek Date: Mon, 3 Feb 2014 22:55:45 +0100 Subject: realemu: cleanup opidiv no need for switch here, just calculate the values. also fixes 6l warning about uninitialized min/max (compiler assumes none of the case statements could match). --- sys/src/cmd/aux/realemu/xec.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/sys/src/cmd/aux/realemu/xec.c b/sys/src/cmd/aux/realemu/xec.c index 90c8bc1ec..4195abe73 100644 --- a/sys/src/cmd/aux/realemu/xec.c +++ b/sys/src/cmd/aux/realemu/xec.c @@ -799,21 +799,8 @@ opidiv(Cpu *cpu, Inst *i) q = n/d; r = n%d; - /* check for overflow based on operand size */ - switch(s) { - case 8: - min = (char)0x80; - max = 0x7F; - break; - case 16: - min = (short)0x8000; - max = 0x7FFF; - break; - case 32: - min = (long)0x80000000; - max = 0x7FFFFFFF; - break; - } + max = sign(s)-1; + min = ~max; if(q > max || q < min) trap(cpu, EDIV0); -- cgit v1.2.3