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TIC80 uses little endian doubles, not big endian

This commit is contained in:
Michael Meissner 1998-02-14 00:59:44 +00:00
parent 8970f2fd36
commit 77cfb0a136
2 changed files with 5 additions and 2 deletions
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3
sim/tic80/ChangeLog
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@ -1,5 +1,8 @@
Fri Feb 13 17:11:22 1998 Michael Meissner <meissner@cygnus.com>
* insns ({get,set}_fp_reg): Tic80 floating point is little endian,
not big endian.
* misc.c (tic80_trace_fpu*): Pass address of sim_fpu structure,
not the structure itself. Use %g consistantly to print floating
point.

4
sim/tic80/insns
View File

@ -447,7 +447,7 @@ sim_fpu::function::get_fp_reg:int reg, unsigned32 val, int precision
sim_engine_abort (SD, CPU, cia, "DP FP register must be even");
if (reg <= 1)
sim_engine_abort (SD, CPU, cia, "DP FP register must be >= 2");
sim_fpu_232to (&ans, GPR (reg), GPR (reg + 1));
sim_fpu_232to (&ans, GPR (reg + 1), GPR (reg));
break;
case 2: /* 32 bit signed integer */
sim_fpu_i32to (&ans, val, 0);
@ -473,7 +473,7 @@ void::function::set_fp_reg:int Dest, sim_fpu val, int PD
sim_engine_abort (SD, CPU, cia, "DP FP Dest register must be even");
if (Dest <= 1)
sim_engine_abort (SD, CPU, cia, "DP FP Dest register must be >= 2");
sim_fpu_to232 (&GPR (Dest + 0), &GPR (Dest + 1), &val);
sim_fpu_to232 (&GPR (Dest + 1), &GPR (Dest + 0), &val);
break;
}
case 2: /* signed */