Some optimization.
This commit is contained in:
n-a-c-h
@@ -2062,224 +2062,214 @@ void InitDSP4()
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void DSP4SetByte()
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{
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if ((dsp4_address & 0xf000) == 0x6000 || (dsp4_address >= 0x8000 && dsp4_address < 0xc000))
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{
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// clear pending read
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if (DSP4.out_index < DSP4.out_count)
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// clear pending read
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if (DSP4.out_index < DSP4.out_count)
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{
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DSP4.out_index++;
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return;
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}
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if (DSP4.waiting4command)
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{
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if (DSP4.half_command)
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{
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DSP4.out_index++;
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return;
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}
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if (DSP4.waiting4command)
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{
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if (DSP4.half_command)
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DSP4.command |= (dsp4_byte << 8);
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DSP4.in_index = 0;
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DSP4.waiting4command = FALSE;
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DSP4.half_command = FALSE;
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DSP4.out_count = 0;
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DSP4.out_index = 0;
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DSP4_Logic = 0;
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switch (DSP4.command)
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{
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DSP4.command |= (dsp4_byte << 8);
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DSP4.in_index = 0;
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DSP4.waiting4command = FALSE;
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DSP4.half_command = FALSE;
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DSP4.out_count = 0;
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DSP4.out_index = 0;
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DSP4_Logic = 0;
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switch (DSP4.command)
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{
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case 0x0000:
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DSP4.in_count = 4; break;
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case 0x0001:
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DSP4.in_count = 44; break;
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case 0x0003:
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DSP4.in_count = 0; break;
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case 0x0005:
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DSP4.in_count = 0; break;
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case 0x0006:
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DSP4.in_count = 0; break;
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case 0x0007:
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DSP4.in_count = 34; break;
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case 0x0008:
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DSP4.in_count = 90; break;
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case 0x0009:
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DSP4.in_count = 14; break;
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case 0x000a:
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DSP4.in_count = 6; break;
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case 0x000b:
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DSP4.in_count = 6; break;
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case 0x000d:
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DSP4.in_count = 42; break;
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case 0x000e:
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DSP4.in_count = 0; break;
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case 0x000f:
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DSP4.in_count = 46; break;
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case 0x0010:
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DSP4.in_count = 36; break;
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case 0x0011:
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DSP4.in_count = 8; break;
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default:
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DSP4.waiting4command = TRUE;
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break;
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}
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}
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else
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{
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DSP4.command = dsp4_byte;
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DSP4.half_command = TRUE;
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case 0x0000:
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DSP4.in_count = 4; break;
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case 0x0001:
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DSP4.in_count = 44; break;
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case 0x0003:
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DSP4.in_count = 0; break;
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case 0x0005:
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DSP4.in_count = 0; break;
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case 0x0006:
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DSP4.in_count = 0; break;
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case 0x0007:
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DSP4.in_count = 34; break;
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case 0x0008:
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DSP4.in_count = 90; break;
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case 0x0009:
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DSP4.in_count = 14; break;
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case 0x000a:
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DSP4.in_count = 6; break;
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case 0x000b:
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DSP4.in_count = 6; break;
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case 0x000d:
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DSP4.in_count = 42; break;
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case 0x000e:
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DSP4.in_count = 0; break;
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case 0x000f:
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DSP4.in_count = 46; break;
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case 0x0010:
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DSP4.in_count = 36; break;
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case 0x0011:
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DSP4.in_count = 8; break;
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default:
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DSP4.waiting4command = TRUE;
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break;
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}
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}
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else
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{
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DSP4.parameters[DSP4.in_index] = dsp4_byte;
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DSP4.in_index++;
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DSP4.command = dsp4_byte;
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DSP4.half_command = TRUE;
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}
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if (!DSP4.waiting4command && DSP4.in_count == DSP4.in_index)
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}
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else
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{
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DSP4.parameters[DSP4.in_index] = dsp4_byte;
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DSP4.in_index++;
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}
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if (!DSP4.waiting4command && DSP4.in_count == DSP4.in_index)
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{
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// Actually execute the command
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DSP4.waiting4command = TRUE;
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DSP4.out_index = 0;
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DSP4.in_index = 0;
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switch (DSP4.command)
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{
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// Actually execute the command
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DSP4.waiting4command = TRUE;
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DSP4.out_index = 0;
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DSP4.in_index = 0;
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switch (DSP4.command)
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// 16-bit multiplication
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case 0x0000:
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{
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// 16-bit multiplication
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case 0x0000:
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{
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int16 multiplier, multiplicand;
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int32 product;
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int16 multiplier, multiplicand;
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int32 product;
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multiplier = DSP4_READ_WORD();
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multiplicand = DSP4_READ_WORD();
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multiplier = DSP4_READ_WORD();
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multiplicand = DSP4_READ_WORD();
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DSP4_Multiply(multiplicand, multiplier, &product);
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DSP4_Multiply(multiplicand, multiplier, &product);
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DSP4_CLEAR_OUT();
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DSP4_WRITE_WORD(product);
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DSP4_WRITE_WORD(product >> 16);
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}
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break;
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// single-player track projection
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case 0x0001:
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DSP4_OP01(); break;
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// single-player selection
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case 0x0003:
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DSP4_OP03(); break;
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// clear OAM
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case 0x0005:
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DSP4_OP05(); break;
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// transfer OAM
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case 0x0006:
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DSP4_OP06(); break;
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// single-player track fork projection
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case 0x0007:
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DSP4_OP07(); break;
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// solid polygon projection
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case 0x0008:
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DSP4_OP08(); break;
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// sprite projection
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case 0x0009:
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DSP4_OP09(); break;
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// unknown
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case 0x000A:
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{
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int16 in1a = DSP4_READ_WORD();
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int16 in2a = DSP4_READ_WORD();
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int16 in3a = DSP4_READ_WORD();
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int16 out1a, out2a, out3a, out4a;
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DSP4_OP0A(in2a, &out2a, &out1a, &out4a, &out3a);
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DSP4_CLEAR_OUT();
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DSP4_WRITE_WORD(out1a);
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DSP4_WRITE_WORD(out2a);
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DSP4_WRITE_WORD(out3a);
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DSP4_WRITE_WORD(out4a);
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}
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break;
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// set OAM
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case 0x000B:
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{
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int16 sp_x = DSP4_READ_WORD();
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int16 sp_y = DSP4_READ_WORD();
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int16 sp_attr = DSP4_READ_WORD();
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bool8 draw = 1;
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DSP4_CLEAR_OUT();
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DSP4_OP0B(&draw, sp_x, sp_y, sp_attr, 0, 1);
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}
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break;
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// multi-player track projection
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case 0x000D:
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DSP4_OP0D(); break;
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// multi-player selection
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case 0x000E:
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DSP4_OP0E(); break;
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// single-player track projection with lighting
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case 0x000F:
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DSP4_OP0F(); break;
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// single-player track fork projection with lighting
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case 0x0010:
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DSP4_OP10(); break;
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// unknown: horizontal mapping command
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case 0x0011:
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{
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int16 a, b, c, d, m;
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d = DSP4_READ_WORD();
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c = DSP4_READ_WORD();
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b = DSP4_READ_WORD();
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a = DSP4_READ_WORD();
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DSP4_OP11(a, b, c, d, &m);
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DSP4_CLEAR_OUT();
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DSP4_WRITE_WORD(m);
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break;
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}
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default:
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break;
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DSP4_CLEAR_OUT();
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DSP4_WRITE_WORD(product);
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DSP4_WRITE_WORD(product >> 16);
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}
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break;
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// single-player track projection
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case 0x0001:
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DSP4_OP01(); break;
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// single-player selection
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case 0x0003:
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DSP4_OP03(); break;
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// clear OAM
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case 0x0005:
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DSP4_OP05(); break;
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// transfer OAM
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case 0x0006:
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DSP4_OP06(); break;
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// single-player track fork projection
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case 0x0007:
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DSP4_OP07(); break;
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// solid polygon projection
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case 0x0008:
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DSP4_OP08(); break;
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// sprite projection
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case 0x0009:
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DSP4_OP09(); break;
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// unknown
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case 0x000A:
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{
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int16 in1a = DSP4_READ_WORD();
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int16 in2a = DSP4_READ_WORD();
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int16 in3a = DSP4_READ_WORD();
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int16 out1a, out2a, out3a, out4a;
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DSP4_OP0A(in2a, &out2a, &out1a, &out4a, &out3a);
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DSP4_CLEAR_OUT();
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DSP4_WRITE_WORD(out1a);
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DSP4_WRITE_WORD(out2a);
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DSP4_WRITE_WORD(out3a);
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DSP4_WRITE_WORD(out4a);
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}
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break;
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// set OAM
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case 0x000B:
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{
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int16 sp_x = DSP4_READ_WORD();
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int16 sp_y = DSP4_READ_WORD();
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int16 sp_attr = DSP4_READ_WORD();
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bool8 draw = 1;
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DSP4_CLEAR_OUT();
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DSP4_OP0B(&draw, sp_x, sp_y, sp_attr, 0, 1);
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}
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break;
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// multi-player track projection
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case 0x000D:
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DSP4_OP0D(); break;
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// multi-player selection
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case 0x000E:
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DSP4_OP0E(); break;
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// single-player track projection with lighting
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case 0x000F:
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DSP4_OP0F(); break;
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// single-player track fork projection with lighting
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case 0x0010:
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DSP4_OP10(); break;
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// unknown: horizontal mapping command
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case 0x0011:
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{
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int16 a, b, c, d, m;
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d = DSP4_READ_WORD();
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c = DSP4_READ_WORD();
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b = DSP4_READ_WORD();
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a = DSP4_READ_WORD();
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DSP4_OP11(a, b, c, d, &m);
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DSP4_CLEAR_OUT();
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DSP4_WRITE_WORD(m);
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break;
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}
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default:
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break;
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}
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}
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}
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void DSP4GetByte()
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{
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if ((dsp4_address & 0xf000) == 0x6000 || (dsp4_address >= 0x8000 && dsp4_address < 0xc000))
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if (DSP4.out_count)
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{
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if (DSP4.out_count)
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{
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dsp4_byte = (uint8) DSP4.output[DSP4.out_index&0x1FF];
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DSP4.out_index++;
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if (DSP4.out_count == DSP4.out_index)
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DSP4.out_count = 0;
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}
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else
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{
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dsp4_byte = 0xff;
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}
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dsp4_byte = (uint8) DSP4.output[DSP4.out_index&0x1FF];
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DSP4.out_index++;
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if (DSP4.out_count == DSP4.out_index)
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DSP4.out_count = 0;
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}
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else
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{
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dsp4_byte = 0x80;
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dsp4_byte = 0xff;
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}
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}
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@@ -25,11 +25,25 @@ EXTSYM regaccessbankr16,regaccessbankr8,regaccessbankw16,regaccessbankw8
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SECTION .text
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NEWSYM DSP4Read8b
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test ecx,8000h
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%macro RouteAccess 1
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test ecx,08000h
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jnz .dsp4area
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jmp regaccessbankr8
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.dsp4area
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jmp %1
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.dsp4area
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mov dx,cx
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and dx,0C000h
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cmp dx,08000h
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je .dsp4continue
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mov dx,cx
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and dx,0F000h
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cmp dx,06000h
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je .dsp4continue
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ret
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.dsp4continue
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%endmacro
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NEWSYM DSP4Read8b
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RouteAccess regaccessbankr8
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mov word[dsp4_address],cx
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pushad
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call DSP4GetByte
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@@ -38,10 +52,7 @@ NEWSYM DSP4Read8b
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ret
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NEWSYM DSP4Write8b
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test ecx,8000h
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jnz .dsp4area
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jmp regaccessbankw8
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.dsp4area
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RouteAccess regaccessbankw8
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mov word[dsp4_address],cx
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mov byte[dsp4_byte],al
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pushad
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@@ -50,10 +61,7 @@ NEWSYM DSP4Write8b
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ret
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NEWSYM DSP4Read16b
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test ecx,8000h
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jnz .dsp4area
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jmp regaccessbankr16
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.dsp4area
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RouteAccess regaccessbankr16
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mov word[dsp4_address],cx
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pushad
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call DSP4GetByte
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@@ -67,10 +75,7 @@ NEWSYM DSP4Read16b
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ret
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NEWSYM DSP4Write16b
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test ecx,8000h
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jnz .dsp4area
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jmp regaccessbankw16
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.dsp4area
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RouteAccess regaccessbankw16
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mov word[dsp4_address],cx
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mov byte[dsp4_byte],al
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mov byte[dsp4temp],ah
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