diff options
| author | Alexey 'Cluster' Avdyukhin <clusterrr@clusterrr.com> | 2020-09-22 13:27:31 +0300 |
|---|---|---|
| committer | Alexey 'Cluster' Avdyukhin <clusterrr@clusterrr.com> | 2020-09-22 13:27:31 +0300 |
| commit | ce733dad42462ebb6b75e025087eee81c017a289 (patch) | |
| tree | 03d7fe5bd2ad9048f53da0b85896009cde93442b | |
| parent | 57fd0cffe295ffe5245e14776992695081297459 (diff) | |
More 512KB CHR RAM optimization
| -rw-r--r-- | CoolGirl_mappers.vh | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/CoolGirl_mappers.vh b/CoolGirl_mappers.vh index 48efeb6..556b670 100644 --- a/CoolGirl_mappers.vh +++ b/CoolGirl_mappers.vh @@ -759,14 +759,14 @@ begin 6'b001101: mapper65_irq_latch[15:8] = cpu_data_in; // $9005, IRQ high value
6'b001110: mapper65_irq_latch[7:0] = cpu_data_in; // $9006, IRQ low value
6'b010000: prg_bank_b[5:0] = cpu_data_in[5:0]; // $A000
- 6'b011000: chr_bank_a = cpu_data_in; // $B000
- 6'b011001: chr_bank_b = cpu_data_in; // $B001
- 6'b011010: chr_bank_c = cpu_data_in; // $B002
- 6'b011011: chr_bank_d = cpu_data_in; // $B003
- 6'b011100: chr_bank_e = cpu_data_in; // $B004
- 6'b011101: chr_bank_f = cpu_data_in; // $B005
- 6'b011110: chr_bank_g = cpu_data_in; // $B006
- 6'b011111: chr_bank_h = cpu_data_in; // $B007
+ 6'b011000: chr_bank_a[7:0] = cpu_data_in[7:0]; // $B000
+ 6'b011001: chr_bank_b[7:0] = cpu_data_in[7:0]; // $B001
+ 6'b011010: chr_bank_c[7:0] = cpu_data_in[7:0]; // $B002
+ 6'b011011: chr_bank_d[7:0] = cpu_data_in[7:0]; // $B003
+ 6'b011100: chr_bank_e[7:0] = cpu_data_in[7:0]; // $B004
+ 6'b011101: chr_bank_f[7:0] = cpu_data_in[7:0]; // $B005
+ 6'b011110: chr_bank_g[7:0] = cpu_data_in[7:0]; // $B006
+ 6'b011111: chr_bank_h[7:0] = cpu_data_in[7:0]; // $B007
6'b100000: prg_bank_c[5:0] = cpu_data_in[5:0]; // $C000
endcase
end
@@ -904,12 +904,12 @@ begin end
3'b001: begin // $8001-$9FFF, odd
case (mmc3_internal[2:0])
- 3'b000: chr_bank_a = cpu_data_in;
- 3'b001: chr_bank_c = cpu_data_in;
- 3'b010: chr_bank_e = cpu_data_in;
- 3'b011: chr_bank_f = cpu_data_in;
- 3'b100: chr_bank_g = cpu_data_in;
- 3'b101: chr_bank_h = cpu_data_in;
+ 3'b000: chr_bank_a[7:0] = cpu_data_in[7:0];
+ 3'b001: chr_bank_c[7:0] = cpu_data_in[7:0];
+ 3'b010: chr_bank_e[7:0] = cpu_data_in[7:0];
+ 3'b011: chr_bank_f[7:0] = cpu_data_in[7:0];
+ 3'b100: chr_bank_g[7:0] = cpu_data_in[7:0];
+ 3'b101: chr_bank_h[7:0] = cpu_data_in[7:0];
3'b110: if (!ENABLE_MAPPER_189 | ~flags[1]) prg_bank_a[(MMC3_BITSIZE-1):0] = cpu_data_in[(MMC3_BITSIZE-1):0];
3'b111: if (!ENABLE_MAPPER_189 | ~flags[1]) prg_bank_b[(MMC3_BITSIZE-1):0] = cpu_data_in[(MMC3_BITSIZE-1):0];
endcase
|