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target/m68k: Perform the semihosting test during translate

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Replace EXCP_HALT_INSN by EXCP_SEMIHOSTING.  Perform the pre-
and post-insn tests during translate, leaving only the actual
semihosting operation for the exception.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-10-03 15:15:24 -07:00
parent 5fae5110ee
commit f161e723fd
3 changed files with 44 additions and 17 deletions
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2
target/m68k/cpu.h
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@ -66,7 +66,7 @@
#define EXCP_MMU_ACCESS 58 /* MMU Access Level Violation Error */
#define EXCP_RTE 0x100
#define EXCP_HALT_INSN 0x101
#define EXCP_SEMIHOSTING 0x101
#define M68K_DTTR0 0
#define M68K_DTTR1 1