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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-06-01 18:33:55 -0700 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2022-06-02 09:35:02 +0200 |
| commit | 815c6dea464c661032c6cc76f42160a6240c930e (patch) | |
| tree | f45e732b35bcd072a526ac35321359432eb84ba8 /target/m68k/translate.c | |
| parent | aeeb90afcec3e18254bc6ac9c511f3b0a1a3796c (diff) | |
| download | qemu-815c6dea464c661032c6cc76f42160a6240c930e.zip qemu-815c6dea464c661032c6cc76f42160a6240c930e.tar.gz qemu-815c6dea464c661032c6cc76f42160a6240c930e.tar.bz2 | |
target/m68k: Implement TPF in terms of TRAPcc
TPF stands for "trap false", and is a long-form nop for ColdFire.
Re-use the immediate consumption code from trapcc; the insn will
already expand to a nop because of the TCG_COND_NEVER test
within do_trapcc.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220602013401.303699-12-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'target/m68k/translate.c')
| -rw-r--r-- | target/m68k/translate.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/target/m68k/translate.c b/target/m68k/translate.c index e9aa96d..8b2157c 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -3075,22 +3075,6 @@ DISAS_INSN(addsubq) tcg_temp_free(dest); } -DISAS_INSN(tpf) -{ - switch (insn & 7) { - case 2: /* One extension word. */ - s->pc += 2; - break; - case 3: /* Two extension words. */ - s->pc += 4; - break; - case 4: /* No extension words. */ - break; - default: - disas_undef(env, s, insn); - } -} - DISAS_INSN(branch) { int32_t offset; @@ -6100,7 +6084,8 @@ void register_m68k_insns (CPUM68KState *env) INSN(dbcc, 50c8, f0f8, M68000); INSN(trapcc, 50fa, f0fe, TRAPCC); /* opmode 010, 011 */ INSN(trapcc, 50fc, f0ff, TRAPCC); /* opmode 100 */ - INSN(tpf, 51f8, fff8, CF_ISA_A); + INSN(trapcc, 51fa, fffe, CF_ISA_A); /* TPF (trapf) opmode 010, 011 */ + INSN(trapcc, 51fc, ffff, CF_ISA_A); /* TPF (trapf) opmode 100 */ /* Branch instructions. */ BASE(branch, 6000, f000); |