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[PULL v2 06/20] target/sh4: Merge mach and macl into a union
From: |
Richard Henderson |
Subject: |
[PULL v2 06/20] target/sh4: Merge mach and macl into a union |
Date: |
Tue, 9 Apr 2024 09:35:49 -1000 |
Allow host access to the entire 64-bit accumulator.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/sh4/cpu.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h
index 9211da6bde..d928bcf006 100644
--- a/target/sh4/cpu.h
+++ b/target/sh4/cpu.h
@@ -155,12 +155,22 @@ typedef struct CPUArchState {
uint32_t pc; /* program counter */
uint32_t delayed_pc; /* target of delayed branch */
uint32_t delayed_cond; /* condition of delayed branch */
- uint32_t mach; /* multiply and accumulate high */
- uint32_t macl; /* multiply and accumulate low */
uint32_t pr; /* procedure register */
uint32_t fpscr; /* floating point status/control register */
uint32_t fpul; /* floating point communication register */
+ /* multiply and accumulate: high, low and combined. */
+ union {
+ uint64_t mac;
+ struct {
+#if HOST_BIG_ENDIAN
+ uint32_t mach, macl;
+#else
+ uint32_t macl, mach;
+#endif
+ };
+ };
+
/* float point status register */
float_status fp_status;
--
2.34.1
- [PULL v2 00/20] misc patch queue, Richard Henderson, 2024/04/09
- [PULL v2 01/20] tcg/optimize: Do not attempt to constant fold neg_vec, Richard Henderson, 2024/04/09
- [PULL v2 02/20] linux-user: Fix waitid return of siginfo_t and rusage, Richard Henderson, 2024/04/09
- [PULL v2 03/20] linux-user: replace calloc() with g_new0(), Richard Henderson, 2024/04/09
- [PULL v2 04/20] target/hppa: Fix IIAOQ, IIASQ for pa2.0, Richard Henderson, 2024/04/09
- [PULL v2 05/20] target/sh4: mac.w: memory accesses are 16-bit words, Richard Henderson, 2024/04/09
- [PULL v2 06/20] target/sh4: Merge mach and macl into a union,
Richard Henderson <=
- [PULL v2 07/20] target/sh4: Fix mac.l with saturation enabled, Richard Henderson, 2024/04/09
- [PULL v2 08/20] target/sh4: Fix mac.w with saturation enabled, Richard Henderson, 2024/04/09
- [PULL v2 09/20] target/sh4: add missing CHECK_NOT_DELAY_SLOT, Richard Henderson, 2024/04/09
- [PULL v2 10/20] target/m68k: Map FPU exceptions to FPSR register, Richard Henderson, 2024/04/09
- [PULL v2 11/20] tcg: Add TCGContext.emit_before_op, Richard Henderson, 2024/04/09
- [PULL v2 12/20] accel/tcg: Add insn_start to DisasContextBase, Richard Henderson, 2024/04/09
- [PULL v2 14/20] target/hppa: Use insn_start from DisasContextBase, Richard Henderson, 2024/04/09
- [PULL v2 13/20] target/arm: Use insn_start from DisasContextBase, Richard Henderson, 2024/04/09
- [PULL v2 15/20] target/i386: Preserve DisasContextBase.insn_start across rewind, Richard Henderson, 2024/04/09
- [PULL v2 16/20] target/microblaze: Use insn_start from DisasContextBase, Richard Henderson, 2024/04/09