mirror of
https://github.com/HackerN64/F3DEX3.git
synced 2026-01-21 10:37:45 -08:00
73 lines
1.9 KiB
PHP
73 lines
1.9 KiB
PHP
.rsp
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// This file assumes DATA_FILE and CODE_FILE are set on the command line
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.if version() < 110
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.error "armips 0.11 or newer is required"
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.endif
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// Sign-extends the immediate using addi. ori would zero-extend.
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.macro li, reg, imm
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addi reg, $zero, imm
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.endmacro
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.macro move, dst, src
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ori dst, src, 0
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.endmacro
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// Prohibit macros involving slt; this silently clobbers $1. You can of course
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// manually write the slt and branch instructions if you want this behavior.
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.macro blt, ra, rb, lbl
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.error "blt is a macro using slt, and silently clobbers $1!"
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.endmacro
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.macro bgt, ra, rb, lbl
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.error "bgt is a macro using slt, and silently clobbers $1!"
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.endmacro
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.macro ble, ra, rb, lbl
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.error "ble is a macro using slt, and silently clobbers $1!"
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.endmacro
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.macro bge, ra, rb, lbl
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.error "bge is a macro using slt, and silently clobbers $1!"
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.endmacro
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// This version doesn't depend on $v0 to be vZero, which it often is not in
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// F3DEX3, and also doesn't get corrupted if $vco is set / consume $vco which
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// may be needed for a subsequent instruction.
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.macro vcopy, dst, src
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vor dst, src, src
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.endmacro
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// Using $v31 instead of dst as the source because $v31 doesn't change, whereas
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// dst might have been modified 2 or 3 cycles ago, causing a stall.
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.macro vclr, dst
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vxor dst, $v31, $v31
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.endmacro
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// Also using $v31 for the dummy args here to avoid stalls. dst was once written
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// in vanilla tri code just before reading (should have been $v29), leading to
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// stalls!
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ACC_UPPER equ 0
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ACC_MIDDLE equ 1
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ACC_LOWER equ 2
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.macro vreadacc, dst, N
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vsar dst, $v31, $v31[N]
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.endmacro
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// Only raise a warning in base modes; in profiling modes, addresses will be off
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.macro warn_if_base, warntext
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.if !ENABLE_PROFILING
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.warning warntext
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.endif
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.endmacro
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.macro align_with_warning, alignment, warntext
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.if (. & (alignment - 1))
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warn_if_base warntext
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.endif
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.align alignment
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.endmacro
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