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(sim_resume, shift insns): Fix setting of overflow flag for shal.

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David Edelsohn 1996-03-11 23:25:53 +00:00
parent e10bb7b3e9
commit 5d06fa80b2
2 changed files with 14 additions and 12 deletions
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1
sim/h8300/ChangeLog
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@ -2,6 +2,7 @@ Mon Mar 11 09:53:25 1996 Doug Evans <dje@charmed.cygnus.com>
* compile.c: #include "wait.h".
(sim_resume, sleep insn): Check program exit status in r0.
(sim_resume, shift insns): Fix setting of overflow flag for shal.
* run.c: #include <signal.h>.
(main): Abort if program got SIGILL.
Print error message if argument is invalid.

25
sim/h8300/compile.c
View File

@ -1171,32 +1171,38 @@ sim_resume (step, siggnal)
printf ("%c", cpu.regs[2]);
goto next;
OSHIFTS (O_NOT, rd = ~rd);
OSHIFTS (O_SHLL, c = rd & hm;
OSHIFTS (O_NOT, rd = ~rd; v = 0;);
OSHIFTS (O_SHLL, c = rd & hm; v = 0;
rd <<= 1);
OSHIFTS (O_SHLR, c = rd & 1;
OSHIFTS (O_SHLR, c = rd & 1; v = 0;
rd = (unsigned int) rd >> 1);
OSHIFTS (O_SHAL, c = rd & hm;
v = (rd & hm) != ((rd & (hm >> 1)) << 1);
rd <<= 1);
OSHIFTS (O_SHAR, t = rd & hm;
c = rd & 1;
v = 0;
rd >>= 1;
rd |= t;
);
OSHIFTS (O_ROTL, c = rd & hm;
v = 0;
rd <<= 1;
rd |= C);
OSHIFTS (O_ROTR, c = rd & 1;
v = 0;
rd = (unsigned int) rd >> 1;
if (c) rd |= hm;);
OSHIFTS (O_ROTXL, t = rd & hm;
rd <<= 1;
rd |= C;
c = t;
v = 0;
);
OSHIFTS (O_ROTXR, t = rd & 1;
rd = (unsigned int) rd >> 1;
if (C) rd |= hm; c = t;);
if (C) rd |= hm; c = t;
v = 0;);
case O (O_JMP, SB):
{
@ -1433,27 +1439,22 @@ sim_resume (step, siggnal)
shift8:
/* Set flags after an 8 bit shift op, carry set in insn */
/* Set flags after an 8 bit shift op, carry,overflow set in insn */
n = (rd & 0x80);
v = 0;
nz = rd & 0xff;
SET_B_REG (code->src.reg, rd);
goto next;
shift16:
/* Set flags after an 16 bit shift op, carry set in insn */
/* Set flags after an 16 bit shift op, carry,overflow set in insn */
n = (rd & 0x8000);
v = 0;
nz = rd & 0xffff;
SET_W_REG (code->src.reg, rd);
goto next;
shift32:
/* Set flags after an 32 bit shift op, carry set in insn */
/* Set flags after an 32 bit shift op, carry,overflow set in insn */
n = (rd & 0x80000000);
v = 0;
nz = rd & 0xffffffff;
SET_L_REG (code->src.reg, rd);
goto next;