Attachment 180 Details for Bug 202 – Fix

[patch] Fix

0001-Fix-pack-unpack-instructions.patch (text/plain), 1.07 KB, created by James Jones on 2022-06-13 19:46:54 CDT

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Creator: James Jones

Created: 2022-06-13 19:46:54 CDT

Size: 1.07 KB

patch

obsolete

>From 6c363190a9e2c81272512427458c2518b5994bd8 Mon Sep 17 00:00:00 2001
>From: James Jones <atari@theinnocuous.com>
>Date: Sun, 12 Jun 2022 20:54:39 -0700
>Subject: [PATCH] Fix pack/unpack instructions
>
>The GPU-specific PACK and UNPACK instructions
>share opcode 63. PACK is chosen by encoding '0'
>in the source operand, and UNPACK is chosen by
>encoding '1' in the source operand. RMAC had the
>magic source operand values reversed.
>---
> riscasm.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/riscasm.c b/riscasm.c
>index 5681f35..41fbce0 100644
>--- a/riscasm.c
>+++ b/riscasm.c
>@@ -128,8 +128,8 @@ static const struct opcoderecord roptbl[] = {
> 	{ MR_NORMI,   RI_TWO,    56 },
> 	{ MR_NOP,     RI_NONE,   57 },
> 	{ MR_SAT24,   RI_ONE,    62 },
>-	{ MR_UNPACK,  RI_ONE,    63 + GPUONLY | (0 << 6) },
>-	{ MR_PACK,    RI_ONE,    63 + GPUONLY | (1 << 6) },
>+	{ MR_UNPACK,  RI_ONE,    63 + GPUONLY | (1 << 6) },
>+	{ MR_PACK,    RI_ONE,    63 + GPUONLY | (0 << 6) },
> 	{ MR_ADDQMOD, RI_NUM_32, 63 + DSPONLY },
> 	{ MR_MOVE,    RI_MOVE,   0 },
> 	{ MR_LOAD,    RI_LOAD,   0 },
>-- 
>2.34.1
>

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