New SHx Assembler Instructions
When SH-4 support is enabled, SHASM recognizes the SH-4 floating-point instructions in addition to the instructions available on the SH-3 and SH-3e. These include:
The following table shows new data transfer instructions.
| Instruction | Affected register |
|---|---|
| OCBI | @Rn |
| OCBP | @Rn |
| OCBWB | @Rn |
| MOVCA.L R0, | @Rn |
The following table shows new double-precision floating-point instructions.
| Instruction | Affected register |
|---|---|
| FABS.D | DRn |
| FADD.D | DRm,DRn |
| FCMP/EQ.D | DRm,DRn |
| FCMP/GT.D | DRm,DRn |
| FCNVDS | DRm,FPUL |
| FCNVSD | FPUL,DRn |
| FDIV.D | DRm,DRn |
| FLOAT.D | FPUL,DRn |
| FMUL.D | DRm,DRn |
| FNEG.D | DRn |
| FSQRT.D | DRn |
| FSUB.D | DRm,DRn |
| FTRC.D | DRm,FPUL |
| FMOV.D | DRm,DRn |
| FMOV.D | @Rm,DRn |
| FMOV.D | @Rm+,DRn |
| FMOV.D | @(R0,Rm),DRn |
| FMOV.D | DRm,@Rn |
| FMOV.D | DRm,@-Rn |
| FMOV.D | DRm,@(R0,Rn) |
| FMOV.D | DRm,XDn |
| FMOV.D | XDm,DRn |
| FMOV.D | XDm,XDn |
| FMOV.D | @Rm,XDn |
| FMOV.D | @Rm+,XDn |
| FMOV.D | @(R0,Rm),XDn |
| FMOV.D | XDm,@Rn |
| FMOV.D | XDm,@-Rn |
| FMOV.D | XDm,@(R0,Rn) |
| FIPR | FVm,FVn |
| FTRV | XMTRX,FVn |
| FRCHG | |
| FSCHG |
The following table shows new private instructions.
| Instruction | Affected register |
|---|---|
| FSCA | FPUL,DRn |
| FSRRA.S | FRn |
The following table shows new single-precision floating-point instructions.
| Instruction | Affected register |
|---|---|
| FMAC.S | FR0, FRm, FRn |
The following table shows new system control instructions.
| Instruction | Affected register |
|---|---|
| STC | SGR,Rn |
| STC.L | SGR,@-Rn |
| STC | DBR,Rn |
| STC.L | DBR,@-Rn |
| LDC | Rm, DBR |
| LDC.L | @Rm+,DBR |
.S or .s indicates single precision and .D or .d indicates double precision. In addition, if SH-1, SH-2, SH-3, or SH-3e is selected, SHASM generates a message for any of the new SH-4 instructions.
See Also
What's New for SH-4 | Differences Between SHASM and Hitachi Assembler | SHx Assembler Programming Limitations | New SHx Assembler Registers
Last updated on Thursday, April 08, 2004
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