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https://github.com/c64scene-ar/llvm-6502.git
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db8552c834
Implement microMIPS 16-bit unconditional branch instruction B. Implemented 16-bit microMIPS unconditional instruction has real name B16, and B is an alias which expands to either B16 or BEQ according to the rules: b 256 --> b16 256 # R_MICROMIPS_PC10_S1 b 12256 --> beq $zero, $zero, 12256 # R_MICROMIPS_PC16_S1 b label --> beq $zero, $zero, label # R_MICROMIPS_PC16_S1 Differential Revision: http://reviews.llvm.org/D3514 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226657 91177308-0d34-0410-b5e6-96231b3b80d8
80 lines
4.1 KiB
ArmAsm
80 lines
4.1 KiB
ArmAsm
# RUN: llvm-mc %s -triple=mipsel -show-encoding -mattr=micromips \
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# RUN: | FileCheck %s -check-prefix=CHECK-EL
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# RUN: llvm-mc %s -triple=mips -show-encoding -mattr=micromips \
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# RUN: | FileCheck %s -check-prefix=CHECK-EB
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# Check that the assembler can handle the documented syntax
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# for arithmetic and logical instructions.
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#------------------------------------------------------------------------------
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# Branch Instructions
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#------------------------------------------------------------------------------
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# Little endian
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#------------------------------------------------------------------------------
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# CHECK-EL: b 1332 # encoding: [0x00,0x94,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x0c]
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# CHECK-EL: beq $9, $6, 1332 # encoding: [0xc9,0x94,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bgez $6, 1332 # encoding: [0x46,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bgezal $6, 1332 # encoding: [0x66,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bltzal $6, 1332 # encoding: [0x26,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bgtz $6, 1332 # encoding: [0xc6,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: blez $6, 1332 # encoding: [0x86,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bne $9, $6, 1332 # encoding: [0xc9,0xb4,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bal 1332 # encoding: [0x60,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bltz $6, 1332 # encoding: [0x06,0x40,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EL: bgezals $6, 1332 # encoding: [0x66,0x42,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x0c]
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# CHECK-EL: bltzals $6, 1332 # encoding: [0x26,0x42,0x9a,0x02]
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# CHECK-EL: nop # encoding: [0x00,0x0c]
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#------------------------------------------------------------------------------
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# Big endian
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#------------------------------------------------------------------------------
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# CHECK-EB: b 1332 # encoding: [0x94,0x00,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x0c,0x00]
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# CHECK-EB: beq $9, $6, 1332 # encoding: [0x94,0xc9,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bgez $6, 1332 # encoding: [0x40,0x46,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bgezal $6, 1332 # encoding: [0x40,0x66,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bltzal $6, 1332 # encoding: [0x40,0x26,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bgtz $6, 1332 # encoding: [0x40,0xc6,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: blez $6, 1332 # encoding: [0x40,0x86,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bne $9, $6, 1332 # encoding: [0xb4,0xc9,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bal 1332 # encoding: [0x40,0x60,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bltz $6, 1332 # encoding: [0x40,0x06,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-EB: bgezals $6, 1332 # encoding: [0x42,0x66,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x0c,0x00]
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# CHECK-EB: bltzals $6, 1332 # encoding: [0x42,0x26,0x02,0x9a]
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# CHECK-EB: nop # encoding: [0x0c,0x00]
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.text
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.type main, @function
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.set micromips
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main:
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b 1332
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beq $9,$6,1332
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bgez $6,1332
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bgezal $6,1332
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bltzal $6,1332
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bgtz $6,1332
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blez $6,1332
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bne $9,$6,1332
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bal 1332
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bltz $6,1332
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bgezals $6,1332
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bltzals $6,1332
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