URL
https://opencores.org/ocsvn/t6507lp/t6507lp/trunk
Subversion Repositories t6507lp
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- This comparison shows the changes necessary to convert path
/
- from Rev 253 to Rev 254
- ↔ Reverse comparison
Rev 253 → Rev 254
/t6507lp/trunk/rtl/verilog/t6507lp_fsm.v
100,7 → 100,6
localparam DUMMY = 5'b11100; |
localparam RESET = 5'b11111; |
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// OPCODES TODO: verify how this get synthesised |
`include "t6507lp_package.v" |
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// rw_mem signals |
916,7 → 915,7
relative = 1'b0; |
zero_page = 1'b0; |
zero_page_indexed = 1'b0; |
//index_is_x = 1'b1; |
index_is_x = 1'b0; |
index_is_branch = 1'b0; |
|
//index = 8'h00; |
1076,22 → 1075,18
SBC_ABX, STA_ABX: begin |
absolute_indexed = 1'b1; |
index_is_x = 1'b1; |
//index = alu_x; |
end |
ADC_ABY, AND_ABY, CMP_ABY, EOR_ABY, LDA_ABY, LDX_ABY, ORA_ABY, SBC_ABY, STA_ABY: begin |
absolute_indexed = 1'b1; |
index_is_x = 1'b0; |
//index = alu_y; |
end |
ADC_IDX, AND_IDX, CMP_IDX, EOR_IDX, LDA_IDX, ORA_IDX, SBC_IDX, STA_IDX: begin |
indirectx = 1'b1; |
index_is_x = 1'b1; |
//index = alu_x; |
end |
ADC_IDY, AND_IDY, CMP_IDY, EOR_IDY, LDA_IDY, ORA_IDY, SBC_IDY, STA_IDY: begin |
indirecty = 1'b1; |
index_is_x = 1'b0; |
//index = alu_y; |
end |
JMP_ABS: begin |
absolute = 1'b1; |