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New recompiler: read the two bytes of unaligned 16-bit immediates into the correct IR bytes, fixes Windows 95 Setup GPF'ing.

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OBattler
2025-02-01 21:39:15 +01:00
parent f599e72114
commit 403a7a995b
1 changed files with 2 additions and 2 deletions
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4
src/codegen_new/codegen_ops_helpers.c
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@@ -18,8 +18,8 @@ void
LOAD_IMMEDIATE_FROM_RAM_16_unaligned(UNUSED(codeblock_t *block), ir_data_t *ir, int dest_reg, uint32_t addr)
{
/*Word access that crosses two pages. Perform reads from both pages, shift and combine*/
uop_MOVZX_REG_PTR_8(ir, IREG_temp3_W, get_ram_ptr(addr));
uop_MOVZX_REG_PTR_8(ir, dest_reg, get_ram_ptr(addr + 1));
uop_MOVZX_REG_PTR_8(ir, IREG_temp3_W, get_ram_ptr(addr + 1));
uop_MOVZX_REG_PTR_8(ir, dest_reg, get_ram_ptr(addr));
uop_SHL_IMM(ir, IREG_temp3_W, IREG_temp3_W, 8);
uop_OR(ir, dest_reg, dest_reg, IREG_temp3_W);
}