Branch and Jump Instructions

In all instructions below Src2 can either be a register or an immediate value (integer). Branch instructions use a signed 16-bit offset field; hence they can jump 2¹⁵-1 instructions (not bytes) forward or 2¹⁵ instructions backwards. The jump instruction contains a 26 bit address field.

b labelBranch instruction ${}^{\dagger}$
Unconditionally branch to the instruction at the label.

bczt labelBranch Coprocessor z True
bczf labelBranch Coprocessor z False
Conditionally branch to the instruction at the label if coprocessor z's condition flag is true (false).

beq Rsrc1 Src2 labelBranch on Equal
Conditionally branch to the instruction at the label if the contents of register Rsrc1 equals Src2.

beqz Rsrc labelBranch on Equal Zero ${}^{\dagger}$
Conditionally branch to the instruction at the label if the contents of Rsrc equals 0.

bge Rsrc1 Src2 labelBranch on Greater Than Equal ${}^{\dagger}$
bgeu Rsrc1 Src2 labelBranch on GTE Unsigned ${}^{\dagger}$
Conditionally branch to the instruction at the label if the contents of register Rsrc1 are greater than or equal to Src2.

bgez Rsrc labelBranch on Greater Than Equal Zero
Conditionally branch to the instruction at the label if the contents of Rsrc are greater than or equal to 0.

bgezal Rsrc labelBranch on Greater Than Equal Zero And Link
Conditionally branch to the instruction at the label if the contents of Rsrc are greater than or equal to 0. Save the address of the next instruction in register 31.

bgt Rsrc1 Src2 labelBranch on Greater Than ${}^{\dagger}$
bgtu Rsrc1 Src2 labelBranch on Greater Than Unsigned ${}^{\dagger}$
Conditionally branch to the instruction at the label if the contents of register Rsrc1 are greater than Src2.

bgtz Rsrc labelBranch on Greater Than Zero
Conditionally branch to the instruction at the label if the contents of Rsrc are greater than 0.

ble Rsrc1 Src2 labelBranch on Less Than Equal ${}^{\dagger}$
bleu Rsrc1 Src2 labelBranch on LTE Unsigned ${}^{\dagger}$
Conditionally branch to the instruction at the label if the contents of register Rsrc1 are less than or equal to Src2.

blez Rsrc labelBranch on Less Than Equal Zero
Conditionally branch to the instruction at the label if the contents of Rsrc are less than or equal to 0.

bgezal Rsrc labelBranch on Greater Than Equal Zero And Link
bltzal Rsrc labelBranch on Less Than And Link
Conditionally branch to the instruction at the label if the contents of Rsrc are greater or equal to 0 or less than 0 respectively. Save the address of the next instruction in register 31.

blt Rsrc1 Src2 labelBranch on Less Than ${}^{\dagger}$
bltu Rsrc1 Src2 labelBranch on Less Than Unsigned ${}^{\dagger}$
Conditionally branch to the instruction at the label if the contents of register Rsrc1 are less than Src2.

bltz Rsrc labelBranch on Less Than Zero
Conditionally branch to the instruction at the label if the contents of Rsrc are less than 0.

bne Rsrc1 Src2 labelBranch on Not Equal
Conditionally branch to the instruction at the label if the contents of register Rsrc1 are not equal to Src2.

bnez Rsrc labelBranch on Not Equal Zero ${}^{\dagger}$
Conditionally branch to the instruction at the label if the contents of Rsrc are not equal to 0.

j labelJump
Unconditionally jump to the instruction at the label.

jal labelJump and Link
jalr RsrcJump and Link Register
Unconditionally jump to the instruction at the label or whose address is in register Rsrc. Save the address of the next instruction in register 31.

jr RsrcJump Register
Unconditionally jump to the instruction whose address is in register Rsrc.