[xcc, sim] replaced ble/bleu with bge/bgeu

This will simplify control logic (since every branch has a logical inverse)

3 files changed, 15 insertions, 15 deletions

diff --git a/inst.v b/inst.v
index 6e768aa..f02848b 100644
--- a/inst.v
+++ b/inst.v
@@ -4,10 +4,10 @@
 `define LUI        32'b1110001_?????_????????????????????
 `define BEQ        32'b1110011_?????_?????_000_????????????
 `define BNE        32'b1110011_?????_?????_001_????????????
-`define BLT        32'b1110011_?????_?????_010_????????????
-`define BLTU       32'b1110011_?????_?????_011_????????????
-`define BLE        32'b1110011_?????_?????_100_????????????
-`define BLEU       32'b1110011_?????_?????_101_????????????
+`define BLT        32'b1110011_?????_?????_100_????????????
+`define BGE        32'b1110011_?????_?????_101_????????????
+`define BLTU       32'b1110011_?????_?????_110_????????????
+`define BGEU       32'b1110011_?????_?????_111_????????????
 `define ADDI       32'b1110100_?????_?????_000_????????????
 `define SLTI       32'b1110100_?????_?????_010_????????????
 `define SLTIU      32'b1110100_?????_?????_011_????????????
diff --git a/instr-table.tex b/instr-table.tex
index 14f731f..8f3e229 100644
--- a/instr-table.tex
+++ b/instr-table.tex
@@ -146,7 +146,7 @@
 \multicolumn{2}{|c|}{1110011} &
 \multicolumn{1}{c|}{xa} &
 \multicolumn{1}{c|}{xb} &
-\multicolumn{1}{c|}{010} &
+\multicolumn{1}{c|}{100} &
 \multicolumn{4}{c|}{imm} & BLT xa,xb,imm \\
 \cline{2-10}
   
@@ -155,8 +155,8 @@
 \multicolumn{2}{|c|}{1110011} &
 \multicolumn{1}{c|}{xa} &
 \multicolumn{1}{c|}{xb} &
-\multicolumn{1}{c|}{011} &
-\multicolumn{4}{c|}{imm} & BLTU xa,xb,imm \\
+\multicolumn{1}{c|}{101} &
+\multicolumn{4}{c|}{imm} & BGE xa,xb,imm \\
 \cline{2-10}
   
 
@@ -164,8 +164,8 @@
 \multicolumn{2}{|c|}{1110011} &
 \multicolumn{1}{c|}{xa} &
 \multicolumn{1}{c|}{xb} &
-\multicolumn{1}{c|}{100} &
-\multicolumn{4}{c|}{imm} & BLE xa,xb,imm \\
+\multicolumn{1}{c|}{110} &
+\multicolumn{4}{c|}{imm} & BLTU xa,xb,imm \\
 \cline{2-10}
   
 
@@ -173,8 +173,8 @@
 \multicolumn{2}{|c|}{1110011} &
 \multicolumn{1}{c|}{xa} &
 \multicolumn{1}{c|}{xb} &
-\multicolumn{1}{c|}{101} &
-\multicolumn{4}{c|}{imm} & BLEU xa,xb,imm \\
+\multicolumn{1}{c|}{111} &
+\multicolumn{4}{c|}{imm} & BGEU xa,xb,imm \\
 \cline{2-10}
   
 
diff --git a/opcodes b/opcodes
index e04f866..b848061 100644
--- a/opcodes
+++ b/opcodes
@@ -15,10 +15,10 @@ lui     31..25=0x71 xa imm20
 
 beq     31..25=0x73 14..12=0 xa xb imm
 bne     31..25=0x73 14..12=1 xa xb imm
-blt     31..25=0x73 14..12=2 xa xb imm
-bltu    31..25=0x73 14..12=3 xa xb imm
-ble     31..25=0x73 14..12=4 xa xb imm
-bleu    31..25=0x73 14..12=5 xa xb imm
+blt     31..25=0x73 14..12=4 xa xb imm
+bge     31..25=0x73 14..12=5 xa xb imm
+bltu    31..25=0x73 14..12=6 xa xb imm
+bgeu    31..25=0x73 14..12=7 xa xb imm
 
 addi    31..25=0x74 14..12=0 xa xb imm
 slti    31..25=0x74 14..12=2 xa xb imm