From: Andrew Cagney Date: Thu, 15 May 1997 02:21:11 +0000 (+0000) Subject: Fix double conversion problem. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=aa3a044769b6cc60d1505aedd70c2776fb4f42be;p=binutils-gdb.git Fix double conversion problem. --- diff --git a/sim/tic80/ChangeLog b/sim/tic80/ChangeLog index ea9bb67bde9..89ebd48539b 100644 --- a/sim/tic80/ChangeLog +++ b/sim/tic80/ChangeLog @@ -1,4 +1,17 @@ -Thu May 15 10:14:06 1997 Andrew Cagney +Thu May 15 11:45:37 1997 Andrew Cagney + + * insns (get_fp_reg): Use sim_fpu_u32to to perform unsigned + conversion. + (do_fcmp): Update to use new fp compare functions. Make reg nr arg + instead of reg. Stops fp overflow. + (get_fp_reg): Assume val is valid when reg == 0. + (set_fp_reg): Fix double conversion. + + * misc.c (tic80_trace_fpu1): New function, trace simple fp op. + + * insns (do_frnd): Add tracing. + + * cpu.h (TRACE_FPU1): Ditto. * insns (do_trap): Printf formatting. diff --git a/sim/tic80/cpu.h b/sim/tic80/cpu.h index a770192aa5b..0027af08eeb 100644 --- a/sim/tic80/cpu.h +++ b/sim/tic80/cpu.h @@ -161,12 +161,10 @@ struct _sim_cpu { extern char *tic80_trace_alu3 PARAMS ((int, unsigned32, unsigned32, unsigned32)); extern char *tic80_trace_alu2 PARAMS ((int, unsigned32, unsigned32)); extern char *tic80_trace_shift PARAMS ((int, unsigned32, unsigned32, int, int, int, int, int)); -extern void tic80_trace_fpu3 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, - sim_fpu, sim_fpu, sim_fpu)); -extern void tic80_trace_fpu2 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, - sim_fpu, sim_fpu)); -extern void tic80_trace_fpu2i PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, - unsigned32, sim_fpu, sim_fpu)); +extern void tic80_trace_fpu3 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu, sim_fpu, sim_fpu)); +extern void tic80_trace_fpu2 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu, sim_fpu)); +extern void tic80_trace_fpu1 PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu)); +extern void tic80_trace_fpu2i PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, unsigned32, sim_fpu, sim_fpu)); extern char *tic80_trace_nop PARAMS ((int)); extern char *tic80_trace_sink1 PARAMS ((int, unsigned32)); extern char *tic80_trace_sink2 PARAMS ((int, unsigned32, unsigned32)); @@ -217,6 +215,13 @@ do { \ } \ } while (0) +#define TRACE_FPU1(indx, result) \ +do { \ + if (TRACE_FPU_P (CPU)) { \ + tic80_trace_fpu1 (SD, CPU, cia, indx, result); \ + } \ +} while (0) + #define TRACE_FPU2I(indx, result, input1, input2) \ do { \ if (TRACE_FPU_P (CPU)) { \ diff --git a/sim/tic80/insns b/sim/tic80/insns index b823b96cb97..ff80bffc3fe 100644 --- a/sim/tic80/insns +++ b/sim/tic80/insns @@ -396,13 +396,10 @@ sim_fpu::function::get_fp_reg:int reg, unsigned32 val, int precision switch (precision) { case 0: /* single */ - if (reg == 0) - return sim_fpu_32to (0); - else - return sim_fpu_32to (val); + return sim_fpu_32to (val); case 1: /* double */ if (reg < 0) - return sim_fpu_32to (val); + engine_error (SD, CPU, cia, "DP immediate invalid"); if (reg & 1) engine_error (SD, CPU, cia, "DP FP register must be even"); if (reg <= 1) @@ -410,19 +407,13 @@ sim_fpu::function::get_fp_reg:int reg, unsigned32 val, int precision return sim_fpu_64to (INSERTED64 (GPR(reg + 1), 63, 32) | INSERTED64 (GPR(reg), 31, 0)); case 2: /* 32 bit signed integer */ - if (reg == 0) - return sim_fpu_32to (0); - else - return sim_fpu_d2 ((signed32) val); + return sim_fpu_i32to (val); case 3: /* 32 bit unsigned integer */ - if (reg == 0) - return sim_fpu_32to (0); - else - return sim_fpu_d2 ((unsigned32) val); + return sim_fpu_u32to (val); default: engine_error (SD, CPU, cia, "Unsupported FP precision"); } - return sim_fpu_32to (0); + return sim_fpu_i32to (0); void::function::set_fp_reg:int Dest, sim_fpu val, int PD switch (PD) { @@ -433,13 +424,13 @@ void::function::set_fp_reg:int Dest, sim_fpu val, int PD } case 1: /* double */ { - unsigned64 v = *(unsigned64*) &val; + unsigned64 v = sim_fpu_to64 (val); if (Dest & 1) engine_error (SD, CPU, cia, "DP FP Dest register must be even"); if (Dest <= 1) engine_error (SD, CPU, cia, "DP FP Dest register must be >= 2"); - GPR (Dest) = EXTRACTED64 (v, 21, 0); - GPR (Dest + 1) = EXTRACTED64 (v, 63, 32); + GPR (Dest + 0) = VL4_8 (v); + GPR (Dest + 1) = VH4_8 (v); break; } case 2: /* signed */ @@ -471,36 +462,37 @@ void::function::do_fadd:int Dest, int PD, sim_fpu s1, sim_fpu s2 // fcmp.{s|d}{s|d}{s|d} -void::function::do_fcmp:unsigned32 *rDest, sim_fpu s1, sim_fpu s2 - *rDest = 0; +void::function::do_fcmp:int Dest, sim_fpu s1, sim_fpu s2 + unsigned32 result = 0; if (sim_fpu_is_nan (s1) || sim_fpu_is_nan (s2)) - *rDest |= BIT32 (30); + result |= BIT32 (30); else { - *rDest |= BIT32 (31); - if (sim_fpu_cmp (s1, s2) == 0) *rDest |= BIT32(20); - if (sim_fpu_cmp (s1, s2) != 0) *rDest |= BIT32(21); - if (sim_fpu_cmp (s1, s2) > 0) *rDest |= BIT32(22); - if (sim_fpu_cmp (s1, s2) <= 0) *rDest |= BIT32(23); - if (sim_fpu_cmp (s1, s2) < 0) *rDest |= BIT32(24); - if (sim_fpu_cmp (s1, s2) >= 0) *rDest |= BIT32(25); - if (sim_fpu_cmp (s1, sim_fpu_32to (0)) < 0 - || sim_fpu_cmp (s1, s2) > 0) *rDest |= BIT32(26); - if (sim_fpu_cmp (sim_fpu_32to (0), s1) < 0 - && sim_fpu_cmp (s1, s2) < 0) *rDest |= BIT32(27); - if (sim_fpu_cmp (sim_fpu_32to (0), s1) <= 0 - && sim_fpu_cmp (s1, s2) <= 0) *rDest |= BIT32(28); - if (sim_fpu_cmp (s1, sim_fpu_32to (0)) <= 0 - || sim_fpu_cmp (s1, s2) >= 0) *rDest |= BIT32(29); + result |= BIT32 (31); + if (sim_fpu_is_eq (s1, s2)) result |= BIT32(20); + if (sim_fpu_is_ne (s1, s2)) result |= BIT32(21); + if (sim_fpu_is_gt (s1, s2)) result |= BIT32(22); + if (sim_fpu_is_le (s1, s2)) result |= BIT32(23); + if (sim_fpu_is_lt (s1, s2)) result |= BIT32(24); + if (sim_fpu_is_ge (s1, s2)) result |= BIT32(25); + if (sim_fpu_is_lt (s1, sim_fpu_i32to (0)) + || sim_fpu_is_gt (s1, s2)) result |= BIT32(26); + if (sim_fpu_is_lt (sim_fpu_i32to (0), s1) + && sim_fpu_is_lt (s1, s2)) result |= BIT32(27); + if (sim_fpu_is_le (sim_fpu_i32to (0), s1) + && sim_fpu_is_le (s1, s2)) result |= BIT32(28); + if (sim_fpu_is_le (s1, sim_fpu_i32to (0)) + || sim_fpu_is_ge (s1, s2)) result |= BIT32(29); } - TRACE_FPU2I (MY_INDEX, *rDest, s1, s2); + GPR (Dest) = result; + TRACE_FPU2I (MY_INDEX, result, s1, s2); 31.Dest,26.Source2,21.0b111110101,12.0,11./,10.0,8.P2,6.P1,4.Source1::f::fcmp r - do_fcmp (_SD, rDest, + do_fcmp (_SD, Dest, get_fp_reg (_SD, Source1, rSource1, P1), get_fp_reg (_SD, Source2, rSource2, P2)); 31.Dest,26.Source2,21.0b111110101,12.1,11./,10.0,8.P2,6.P1,4./::f::fcmp l long_immediate (SinglePrecisionFloatingPoint); - do_fcmp (_SD, rDest, + do_fcmp (_SD, Dest, get_fp_reg (_SD, -1, SinglePrecisionFloatingPoint, P1), get_fp_reg (_SD, Source2, rSource2, P2)); @@ -541,6 +533,7 @@ void::function::do_fmpy:int Dest, int PD, sim_fpu s1, sim_fpu s2 // frndm.{s|d|i|u}{s|d|i|u}{s|d|i|u} void::function::do_frnd:int Dest, int PD, sim_fpu s1 set_fp_reg (_SD, Dest, s1, PD); + TRACE_FPU1 (MY_INDEX, s1); 31.Dest,26.Source2,21.0b111110100,12.0,11.r,10.PD,8.0b11,6.P1,4.Source::f::frndm r do_frnd (_SD, Dest, PD, get_fp_reg (_SD, Source, rSource, P1)); diff --git a/sim/tic80/misc.c b/sim/tic80/misc.c index 33a2785b90f..a9ce4967a50 100644 --- a/sim/tic80/misc.c +++ b/sim/tic80/misc.c @@ -267,6 +267,26 @@ tic80_trace_fpu2 (SIM_DESC sd, SIZE_HEX + SIZE_DECIMAL, sim_fpu_2d (result)); } +/* Trace the result of an FPU operation with 1 floating point input and a floating point output */ +void +tic80_trace_fpu1 (SIM_DESC sd, + sim_cpu *cpu, + sim_cia cia, + int indx, + sim_fpu result) +{ + if (!tic80_size_name) + tic80_init_trace (); + + trace_one_insn (sd, cpu, cia.ip, 1, + itable[indx].file, itable[indx].line_nr, "fpu", + "%-*s %-*s %-*s => %*g", + tic80_size_name, itable[indx].name, + SIZE_HEX + SIZE_DECIMAL + 3, "", + SIZE_HEX + SIZE_DECIMAL + 3, "", + SIZE_HEX + SIZE_DECIMAL, sim_fpu_2d (result)); +} + /* Trace the result of an FPU operation with 1 integer input and an integer output */ void tic80_trace_fpu2i (SIM_DESC sd,